2004 GMC Sierra technical service bulletins
563 technical service bulletins and manufacturer communications cover the 2004 GMC Sierra.
Bulletins tell dealers how to fix known problems. A warranty extension means the manufacturer pays for that repair for longer.
- This technical bulletin provides a procedure to lube the rear leaf springs on vehicles with the condition...
- Structure: body: tailgate
- Service brakes, hydraulic: pedals and linkages
- Equipment: electrical
- This informational bulletin provides information on Part Restriction and Ordering Process Information for...
- This informational bulletin provides information on close coupled converters and there affect on newly...
- This informational bulletin provides technicians with information regarding automatic transmission oil...
- This informational bulletin provides dealership personnel with information on flexible fuel vehicles...
- This informational bulletin provides information on a GM of Canada OnStar® cellular communication upgrade.
- Electrical system
- This informational bulletin provides information on communication with OnStar® module after Canadian...
- Equipment: electrical
- This warranty administration bulletin provides information to clarify proper transaction administration of...
- Wheels
- Equipment: electrical
- This informational bulletin provides a quick guide to updating which model vehicle after replacing the IPC.
- Chevrolet/gmc/cadillac: anytime hydraulic brake pipes assembly need replacing, pre-formed and pre-flared...
- Gmc/chevrolet: engines, with EGR system, has leakage from EGR cooler engine coolant into the combustion...
- Equipment: mechanical
- General motors: an optional engine block heater plug in for onboard AC power and with continuous usage...
- Engine
- Electrical system: instrument cluster/panel
- Power train: automatic transmission
- Visibility: windshield
- This informational bulletin provides information on close-coupled converter and engine replacement.
- This warranty administration bulletin provide policy information new tire warranty program and global...
- Gm: the front or rear door may not open from the inside or outside handle, the door will not unlock with...
- Equipment: mechanical
- Electrical system
- Engine surge or stall at stop and/or DTC P0742 possible tcc applied
- Electrical system: instrument cluster/panel
- Equipment: mechanical
- Power train
- This warranty administration bulletin provides information on the Clarification of Use for Dealer...
- This informational bulletin provides a list off all the issues revolving around new vehicles for a one...
- Equipment: appliance: air conditioner
- Electrical system
- Wheels: hub
- Gm: there are seat belt problems: difficulty latching and unlatching buckle
- General motors service campaign: the HVAC blower may not work at certain functions or may become inoperable
- Cadillac/chevrolet/gmc/hummer: some suvs and trucks are exhibiting a condition where by...
- Buick/cadillac/chevrolet/gmc/hummer/pontiac/saab: oil consumption and/or exhaust smoke-possible pcv baffle...
- Gear box power steering pump, p/s performance concerns
- Gm: there is an intermittent engine light on due to five possible internal trouble codes
- Gm: information on fixing multiple situations right the first time
- Gm: the service engine soon light is on, there is also a misfire or engine noise
- Gm: there is a diesel engine hard start when hot
- Buick/cadillac/chevrolet/gmc/oldsmobile and hummer: information on pitman arm shaft seal service kit
- Chevrolet gmc service campaign: special policy adjustment - injectors - replace
- Inaccurate fuel gauge readings/rear float arm stuck
- Engine low power will not go over 2300 rpms
- Antilock brake (ABS) activation at low speeds (clean wheel speed sensor mounting surface)
- Chevrolet/gmc: diesel engine turbo DTC P2563 or P003A
- Hard start / no start outside temperatures below freezing
- General motors corp: special coverage adjustment; analog onstar deactivation.
- Gmc: fluid leak from transmission oil cooler lines due to corrosion
- Some customers may comment on various HVAC concerns including temperature doors defaulting to full hot...
- Cadillac chevrolet gmc service campaign: instrument panel cluster gauge needle function may cause...
- Cadillac chevrolet gmc service campaign: some vehicles could develop a condition where one or more of the...
- Gmc: fuel gauge fluctuation in park or neutral, causing the low fuel light to illuminate.
- Buick cadillac chevrolet gmc hummer oldsmobile pontiac saab saturn service campaign: special coverage...
- Suspension vibration or frame beaming at 40 - 60 mph
- Chevrolet gmc service campaign: on-board diagnostics (obd)-fuel level sender-reprogram engine control...
- Service engine soon (SES) light on with reduction in engine power, diagnostic trouble codes P0202 and...
- Clunking noise under hood and CAN be felt in steering wheel and/or steering column (replace upper...
- Diagnostic information on MN8, MT1 ses/MIL illuminated, DTC P0757, harsh shift, delayed 2-3 shift, 2-3...
- Chevrolet gmc service campaign: special coverage adjustment - engine glow plug on certain vehicles with...
- Duramax diesel injector driver codes with 6.6 engine (VIN 2 - rpo lly)
- Possible engine oil leak due to pcv freeze-up, equipped with the 4.8, 5.3, 6.0, and 6.2 V-8 engines
- Eaton locking differential chatter shudder noise on turns, equipped with a locking rear differential rpo G80
- Service 4WD light illuminated, diagnostic trouble code (DTC) C0374 set
- DTC C0327 with or without additional dtc's setting
- One of the following concerns when programming the mileage or the hours into an exchange instrument panel...
- Blown mbec 1 or lbec 1 fuse
- Turn signal in camper style outside rearview mirror (rpo dpn) does not illuminate turn signal flash...
- Allison LCT1000 harsh 3-2, 2-1 downshift, and ABS may activate
- Release of steering gear stub shaft bearing kit for service
- Rear leaf spring slap or clunk noise (replace spring inserts) tt updated 10/18/07
- IPC backlighting inoperative tbc 2A fuse open
- New design front axle side bearing adjusters
- ABS light on, dtc's C0265, C0201, U1041 set and/or loss of communication with brake module
- Diesel engine cylinder head gasket missing thickness grade markings
- Service brake booster message
- Multiple driveability symptoms of long or hard starts, chuggle, rough idle and light or intermittent...
- Unable to program tire size in ebcm/vses
- Bridgestone dueler product information update
- Unable to locate emergency light relay and/or blunt cut wires
- Dual stage passenger air bag used in single stage application
- Slip condition in 2ND, 3RD, or 4TH
- Service vme
- Clunking noise under hood and CAN be felt in steering wheel
- Inspection of tire and wheel size prior to diagnosis of transmission shifts, poor performance,...
- Various intermittent driveability conditions - hesitation, lack of power, etc
- Intermittent ses/MIL lamp illuminated, reduced engine power, fuel injector driver circuit
- Rear drive axle whine noise (replace slip yoke assembly)
- Loss of blower motor speeds except for high speed or inoperative
- Dual tanks fuel gauge defaults to empty - new calibrations
- Tailgate cable slack
- Service engine soon (SES) light, P0087, P0093, P1093, low power, no start, hard start, fuel in crankcase
- Information on servicing fuel injectors to avoid contamination
- Engine with a repeat cracked flywheel
- Door glass pops out of run channel
- Left front axle shaft difficult to remove
- New product information, grade brake feature of allison 1000 series transmission
- Clutch pedal fade or clutch will not disengage typically when towing
- Turbocharger oil feed line kinked or restricted
- Diagnostic information on turbocharger malfunction due to lack of engine oil for lbz, LB7, and lly duramax...
- Generation III V8 engine piston repairs
- Revised upper control arm replacement
- Cruise control inoperative and/or malfunction indicator lamp on with diagnostic trouble code P0833 stored
- Transmission leaks, slips, vehicle will not move
- 4L60-E/4L65-E automatic transmission/torque converter clutch (TCC) shudder, water in transmission
- 4WD inoperative and possible DTC C0327 stored in the transfer case control module
- Front HVAC blower inoperative
- Oil pressure gauge reading low or near red zone
- Heated seat inoperative or shut off in 30 seconds
- Service vme - 2006 duramax diesel engine fuel system components are not interchangeable with earlier year...
- Front blower inoperative stay running during low ambient temperature
- Ses light due to DTC P0116
- Intermittent no start, service stability message, anti-lock brake system (ABS) light illuminated, multiple...
- Information on longer main bearing cap bolts required for certain 2001-2006 LB7, lly, lbz duramax diesel...
- Increased steering and brake effort
- Lack of power LU3 engine) at high ambient temperatures only (if necessary, reprogram PCM with new service...
- Electronic transfer case unable to complete shift
- Duramax diesel pilot to main injection fuel knock noise
- Service vme - 8.6 inch rear axle which exhibit a gear whine condition (until december 23, 2005)
- Service tire pressure monitoring system diagnostics codes
- Advance service information - exhaust system popping/snapping noise when vehicle is hot, at idle or...
- Anti-lock brake system (ABS) light on, diagnostic trouble codes (DTCS) C0265, C0201, U1041 set and/or loss...
- Fuel gauge inoperative or inaccurate, the service engine soon malfunction indicator lamp on, or front fuel...
- Fuel gauge is inaccurate or reads empty on diesel equipped chassis cab with dual tanks
- Fuel gauge inaccurate/ diagnostic trouble code P0461 and or P2636/ transfer pump will not shut off
- Unwanted operation of rear windows
- Low oil pressure message display and chimes activated while driving following hybrid (HP2) LM7 engine...
- Engine oil leak at rear cover assembly area
- Incorrect O2 sensors and wiring harness causing HO2 sensor heater circuit codes P0135 P0141 P0155 P0161
- Engine RPM surge at 1100 to 1400 RPM
- No start, hard start, loss of power, or white smoke
- Duramax diesel engine hard start, no start, stall of diagnostic trouble code P0093, P1093
- Ping, pop, snap or click noise from the propeller shaft
- Engine oil dipstick unseated or oil leak
- 6.6L lly engine oil leak at rear housing cover bolt
- Diesel hesitation or throttle delay
- Vehicle may be brought in for service engine soon (SES) or malfunction indicator lamp (MIL) light on
- Inaccurate outside temperature reading on inside rearview mirror
- 01-05 6.6 lly LB7 duramax diesel engine air filter usage
- 4L80E/4L85E harsh shift or slip no tcc apply
- Supplement to 03-06-01-024B 4.3L LU3 L35 timing chain tensioner
- Diagnostic trouble code P0128 or engine will not reach operating temperature
- 6.6 lly injector driver codes
- Service vme-outside rear view mirror inoperative
- Rough idle, fuel knock or smoke while driving, combustion leak type noise, or a misfire
- Blower motor inoperative at low ambient temperatures
- Service brake booster message
- Tcc surge and/or fluid contamination
- Highway speed excessive smoke and fuel knock
- Additional diagnostic information DTC P0757
- Duramax diesel injector driver codes
- Hard start or extended crank time on initial cold start when using alcohol blended fuels
- Bridgestone dueler product information update
- The service engine soon lamp is illuminated, no 3RD and 4TH gear, the transmission does not shift...
- LM7, L59 or L33 engines with cold start rough or incorrect idle, misfire, malfunction indicator lamp (MIL)...
- Unwanted/loose seat movement
- Intermittent service 4WD light comes on with diagnostic trouble code (DTC) C0306 or C0308 stored in tccm
- Service vmx - duramax injector wiring harness support bracket kit
- Range inhibit and/or will not move
- Service vme - outside rearview mirror vibration
- Hard start hot only after the engine has reached operating temperature and then shut off
- Reference guide for the technician to upgrade a vehicle from factory wheels and tires to 20 inch wheels...
- Information on upgrading certain onstar generation 5 analog/digital-ready systems to onstar generation 6...
- Diagnosis of cracked or broken transmission case
- Diagnostic information for turbo failure due to lack of oil or repeat turbo failures
- Memory seat may not return to requested position
- Information on the revised fuel filter for the 6.6L duramax diesel
- Heated seats turn off
- Program bulletin (customer satisfaction PROGRAM)-15,000 mile (24,000 km) fuel filter change
- Intermittent heated seats inoperative, diagnostic trouble code B3941 set
- Engine overheating
- Flexible fuel (rpo L59) rough idle, misfire, malfunction indicator lamp diagnostic trouble code P0300
- Accessory drive belt chirp, squeal, or squeak type noise at cold idle
- Rough idle, service engine soon (ses)light, unstable idle, hesitation, surge or stalling
- Oil leak from the pcv vent tube
- Surge at idle or 1100 to 1400 RPM
- Rear axle retainer button breakage
- Intermittent malfunction indicator lamp (MIL) with diagnostic trouble code (DTC) C0374 or erratic 4WD/AWD...
- Service 4WD light on with either a variety of diagnostic trouble codes or no communication with the...
- No shift, speedometer erratic/inoperative, P0721 C0237 P0500 C0055
- Malfunction indicator light is on and the vehicle has a code P0706
- 1999 - 2005 gen II cold engine misfire at idle with possible P0171 and/or P0174
- Steering idler arm inspection procedure
- There has been a high percentage of no trouble found (NTF) 6.6 lly engine control modules (ECMS) being...
- Door hinge replacement kit
- Noise, service engine soon (SES) light, or low power
- 4L60-E/4L65-E automatic transmission second gear start, lack/loss of power when accelerating from a stop
- Oil leak under extreme cold temperatures (-34 degrees c) (-30 degrees f) or colder)
- Sir light on steady after bulb test and no diagnostic trouble codes (DTCS)
- Lack of steering assist or shudder during parking lot type maneuvers
- Highway speed vibration on smooth surface
- Diesel oil leak from pcv vent tube
- 4WD models with noise, vibration on dry pavement
- 4L80E output carrier thrust washer changes
- Why the crew cab short bed (5 foot 8 inch) is not recommended for fifth wheel trailering
- Engine overheat on vehicles equipped with rpo vyu snowplow prep package
- Diesel engine balance rates all showing zero
- Application of horn at horn pad inoperative
- Diagnostic trouble code (DTC) P1172 or P2636, fuel gauge reads empty, service engine soon (SES) light on
- Handling characteristics of vehicles with 20 inch wheel/tire assemblies installed
- Steering gear whistle noise on turns
- Revised front caster and camber adjustment procedure
- Revised engine electrical and automatic transmission - 4L60E/4L65E subsections - new caution statements added
- Revised inspection/maintenance (i/m) evaporative emission (EVAP) system set procedure
- Revised diagnostic trouble code (DTC) P2563
- Revised diagnostic trouble code (DTC) P1172 and DTC P2636
- Revised diagnostic trouble code (DTC) U2104
- Duramax air filter
- Diagnostic trouble code C0455, service rear wheel steering, system jumps from 4-WHEEL steer to 2-WHEEL steer
- Fuel injector driver circuit codes P0201 through P0208
- LB7 engine vibration miss or runs rough no diagnostic trouble code
- Leak from the vent 4L80E/4L85E transmission
- Service 4 wheel steer message with diagnostic trouble code C0455
- Broken #2 and #7 injector connector terminals
- Diesel oil leak at right rear of engine
- Turbo air charge cooler hoses oil seepage or blows off on acceleration
- Fuel leaking from body of injector
- Information on engine ticking
- Rear parking brake shoe retaining spring clip service kit for drum-in-hat (DIH) equipped vehicles
- Information on the proper air filter for the duramax diesel
- Quadrasteer intermittent service 4-WHEEL steer message
- Accessory power outlet (APO) turns off automatically - parallel hybrid truck (rpo HP2)
- New essential tool j 45096 23 automatic transmission oil cooler line adapter for allison transmission
- Fuel filter replacement
- Allison LCT1000 pump separator plate change disregard additional valve
- Certain 2004 6.6L lly duramax diesel engines may have an issue with the high pressure fuel lines that...
- Engine oil leak at main bering side bolt
- Fuel pressure regulator connector or terminal repairs
- No connect
- Excessive oil consumption
- 20 inch wheels stop sell on 1500 crew cab with 5'8' bed
- Coolant leak at engine mount bolt
- Diagnostic trouble code C0327 with or without additional diagnostic trouble codes setting
- Harsh 1-2 shift
- Service 4WD light on and no communication with transfer case control module
- Squeak noise from rear leaf springs
- Allison LCT1000 clunk noise on start in park
- Excessive shifter and/or engine vibration, bearing growl and/or rattle type noise while depressing or...
- Generation 5 onstar steering wheel control function
- Check engine light with a P0300 due to 2-4 cylinders misfiring on the same bank of the engine
- Some 2004 full size trucks and utilities may experience a diagnostic trouble code P0442
- 20 inch plus size wheel restriction - supplement to accessories bulletin ACC04-056
- 261 transfer case drivelines growl 1100-1200 RPM
- Service 4WD indicator illuminated
- Ping, pop, snap, or click noise from the propeller shaft
- Programming onstar module for canadian french voice recognition
- Oil leak at cooler to engine block mating surface
- This is in regards to the unnecessary changing of turbochargers due to oil seepage
- Tailgate support cable
- 20 inch plus wheels are no longer to be installed on this body style
- Grease leak from front hub bearing
- Blown mbec 1 or lbec 1 fuse
- Oil seepage from turbo air charge cooler hoses or hose blowing off during acceleration
- M74 allison LCT1000 pto gear applications
- Service engine soon light and reduced engine power with a diagnostic trouble code P1516
- Pre-delivery and service guide - parallel hybrid truck
- Engineering investigation (ei #04073) high, low or erratic oil pressure gauge reading setting diagnostic...
- Low brake pedal, red brake light on, brake system warning message on
- Antilock brake system light on service brake system message on driver information center
- HVAC not cold enough a/c compressor does not engage
- High pitched tone heard inside vehicle when AC compressor is engaged
- Rattle type noise coming from the rear of the cab during body twist maneuvers or over bumps
- Rough idle with white smoke and high balance rates
- Inspection of tire and wheel size prior to diagnosis of transmission shifts, poor performance,...
- Use of synthetic front axle lubricant for 4WD vehicles sold in cold weather climates
- Snap/popping type noise coming from front of vehicle
- Underhood air conditioner rattle noise heard on acceleration or a sudden loss of air conditioner system...
- Front hub bearing grease leak
- The service information and owners manual do not show a service interval for the 8.6, 9.5, 9.75, 10.5, and...
- Service vme - switching mirrors from power folding to power extending
- No communication with any modules, multipe u-diagnostic trouble codes (DTCS), instrument panel cluster...
- Suspension vibration or frame beaming at 40 -60 mph
- Bearing growl or rattle type noise while depressing or releasing the clutch pedal
- 4L60E/4L65E intermittent neutral condition while accelerating from a stop or while driving
- Information on allison transmission service repairs - full service of internal components
- Diagnostic information to accurately diagnose a/c low pressure switch using new kent moore special tool...
- HVAC blower motor inoperative or stays running
- Cranks but no start, stall, inaccurate/incorrect fuel gauge reading, no fuel, vehicle is out of fuel and...
- Automatic dual zone HVAC battery draw
- Roof beacon switch left on causing battery draw
- Poor air conditioner performance - air conditioner will not blow cold enough
- Front power window noisy or inoperative
- Oil life system reset procedures-trucks
- Availability of rear wheel mud flaps to reduce debris build-up on rear brake calipers and/or rear wheels
- Information on revised design of intake gasket and related bolts for 2004 mid-year enhancement and prior...
- Engine oil leak near oil filter
- Slow or no engagement of automatic transmission no start blank prndl display flashing prndl diagnostic...
- Use of correct installation procedure for loose hubcap assembly
- Unable to reset engine oil life monitor
- Heat ventilation and air conditioning system cannot be controlled or defaults to defrost mode
- Windrush around windshield
- Remote keyless entry (RKE) system inoperative
- Proper use of labor operation code when diagnosis leads to sir passenger presence system replacement
- 6.6 lly duramax diesel engine turbocharger learn procedure
- Allison LCT1000 dark or discolored transmission fluid with no loss of performance
- Front suspension coil spring noise
- Outside rearview mirrors may blow in at highway speeds or power folding feature appears inoperative
- Rattle or crackling noise from engine compartment
- Proper method to secure fuel cap during refueling
- Rattle type noise due to a cracked flex plate
- Revised fuel system diagnosis cab chassis
- Clunking noise under hood and CAN be felt in the steering wheel
- Service engine soon (SES) light, P0087, P0093, P1093, low power, no start, hard start, fuel in crankcase
- Stop delivery order inspection claim submission
- Stop delivery order on certain vehicles with 4L80E or 4L8E automatic transmission
- Stop delivery order (chevrolet bac 113611-114593)
- Please stop the delivery due to the limitations of the gm administrative message system
- 4L80E, 4L85E whine noise in first and second gear
- Air bag lamp on, passenger air bag indicator always reads off, diagnostic trouble code (DTC) B0092 set
- Inoperative 4WD/AWD lamps, inoperative 4WD/AWD system
- 4L80E / 4L85E transmission may have a condition in which the transmission overdrive gear set may fail due...
- Revised wheel drive shaft nut torque specification
- Service information for front heated seat inoperative/cold
- Personal trip business trip feature must be on for trip odometer to accumulate
- Enabling memory seat feature via dic if feature appears inoperative
- Latch on the rear quarter glass is loose or has become detached from the window glass
- Exhaust moan/vibration
- Power window motor now available separately from the power window regulatory assembly
- Incorrect amp code generator
- Diagnostic information for intermittent vehicle no crank dead battery
- Bulletin 04-08-64-003, front door power window motor assemblies - warranty repair information
- Erratic idle, idle surge, rough run, or near stall
- D height specification missing from si
- Sizzle noise after vehicle shut off
- Inside rearview mirror compass inoperative
- Quadrasteer service update
- Tighten fuel cap message on the dic
- Hard to fill fuel tank at high volume diesel pumps
- Change in gas cap tether attachment point
- 2003-2004 generation 5 onstar steering wheel control function explanation
- 6.6L and manual transmission growl noise while engaging or disengaging clutch
- Timing chain tensioner breakpoints for service kit or production fix for vehicle exhibiting rattle-type...
- Exhaust moan vibration
- Allison LCT1000 no shift, speedometer erratic/inoperative, diagnostic trouble codes (DTCS) P0721, C0237...
- 6.6 liter duramax diesel engine fuel knock noise
- Squeak noise emanating from the front shock area
- Outside rearview mirrors memory operation
- Slip condition in 2ND, 3RD or 4TH damaged 2-4 band 3-4 clutch on the 4L60E/4L65E automatic transmission
- 2004 6.6L duramax LB7 engines with extended crank during hot engine restart
- 6.6L LB7 duramax diesel turbocharger noises or fuel economy complaint
- Vehicle has no PCM (power train control module) communication with tech 2
- Timing chain tensioner breakpoints for service kit or production fix
- Allison LCT1000 prndl flash and/or will not move with P0721, P0731, P0732, P0733, P0734, P0743, P0746,...
- Duramax diesel fuel in oil diagnostics
- This message is in regard to duramax turbocharger noises or possibly a performance or fuel economy complaint
- Rear seat does not fold down into the stowed position
- Allison LCT1000 transmission prndl inoperative and no communication with the tech 2 scan tool
- 6.6L LB7 engine - fuel rail pressure regulator harness connector servicing
- 6.6L LB7 repeat engine oil leak (left side) #2 main bearing cross bolt
- 6.6L LB7 lly diesel engine drive belt chirping on shut down
- Rear quarter glass hinge (LATCH) loose
- Business trip and/or personal trip odometer inoperative
- XM rapid activation utilization
- Locking gas cap availability
- Service 4 wheel steer message with diagnostic trouble code (DTC) C0455
- Poor ground connection causing diagnostic trouble code (DTC) C0265
- Fuel gauge diverts to empty after idling on incline
- Windshield reveal molding flutering
- 4.8 5.3 LM4 LM7 LR4 engine - with O2 sensor codes P0135, P0141, P0155, P0161
- Programming control heads - HVAC AC
- Left front of vehicle sits low
- The 4L60E/4L65E automatic transmission may experience a leak, inoperative/slipping in 2ND, 3RD and 4TH...
- Lack of steering assist or shudder during parking lot type maneuvers
- Product information on rear slider
- Excessive tire spin setting diagnostic trouble code (DTC) CO542
- Hazard light flashes when turn signal applied
- Front lower control arm change
- 4.3 4.8 5.3 6.0 LR4 LU3 LM7 L59 LQ4 LQ9 engines- evap code P0442
- Drivers or passengers heated seats turn on by themselves
- Driver personalization regarding memory seats
- Radio cd skips/ejects or clock resets to 12:00
- Lack of steering assist when stopped or during parking lot type maneuvers
- 6.6L lly engine - diagnostic trouble code (DTC) U0106 resets or will not clear
- Allison LCT1000 will not shift from park due to ice, snow or mud build-up on shift linkage
- Front door frame contacts the windshield reveal molding
- Replacement radio reads cal error, has no audio or will not program
- Inoperative air conditioner system or lack of cooling
- ABS and red brake malfunction indicator light on with no diagnostic trouble codes
- Inaccurate fuel gauge readings and/or engine stall
- Product information regarding radio personalization
- Diagnostic trouble code tips- LCT1000 transmission
- 6.6L lly diesel engine fuelinjector compression leak noise or soot around the injector body
- Power folding mirrors will not fold inward
- Passenger door module lock up
- Coolant leak from head cup plugs on gen III engines
- Electronic brake control module part restriction
- Windshield wiper arm loose
- 6.6 lly engine glow plugs are not interchangeable with the current 6.6 LB7 glow plugs
- Fuel gauge diverts to empty after idling on incline or refueling
- Secondary sunshade visor elimination
- Intermediate steering shaft service kit
- Squawk or grunt noise that occurs on the 2-3 upshift on vehicles with 4L60E - M30, 4L60E M32 transmission
- Gen III engines with maf (mass airflow) sensor code P0101
- 6.6 lly duramax diesel engines have an issue with the high pressure fuel lines that prevent them from...
- XM error on a radio display
- 6.6L diesel engine rough idle, clatter, stall and/or diagnostic trouble code (DTC) P1223
- Repeat rear axle hub seal leak
- Fuel cap tether strap too short
- Engine overheats on vehicles equipped with rpo vyu snowplow prep package
- Onstar system is attempting and/or completing phone calls which the operator of the vehicle did not initiate
- Dual stage air bag used in single stage application
- Poor ground connection causing diagnostic trouble code (DTC) C0265
- Highway speed vibration on K2500HD 4WD vehicles equipped with a 4L80E automatic transmission
- Intermittent no forward or reverse with possibly either a flashing prndl display or a range shift...
- Front windshield wiper arm does not remain upright position as it did on prior models and as a result,...
- Low power, will not go over 2300 rpms
- 6.6L LB7 lly diesel engine with rough, unstable, low idle speed or stall
- Normal engine operating noise characteristics
- Roll-out for the gen III small block engines with iridium spark plugs
- Allison LCT1000 prndl flash and/or will not move
- Erratic oil pressure gmt 610 or GMT800 with codes P0522 or P0523
- 4.3L L35 engine wide open throttle diagnostic trouble code (DTC) P0335, P0336, P0339
- Loss of power, hesitates on acceleration on 4.8, 5.3 and 6.0 engines coupled with the 4L60E or 4L65E...
- Allison LCT1000 buzz, moan noise at 1400 RPM with the 8.1 L18 gas engine
- Low audio output from speakers
- Service 4WD light on no codes besides U1000 codes or C0550
- Allison LCT1000 diagnostic trouble codes (DTC) P1711, P0872 after completing repairs
- 8.1L changes in heads, bolts and gasket for for 2004 1/2 engines
- Snow plow prep package information - service vme
- Buzz noise and virbation in the accelerator pedal at approx
- Intermittent service engine soon (SES) light comes on and code P0700 along with diagnostic trouble code...
- Noise coming from instrument panel cluster or tachometer
- Engine oil in the turbo charge air cooler pipes and hoses
- Gurgle noise may be heard from the engine coolant compartment on trucks built with rpo HP2 parallel hybrid...
- Allison LCT1000 range inhibit and/or will not move
- Inaccurate fuel gauge readings and/or engine stall
- Allison LCT1000 oil pump whine, buzz on cold start
- Outside rearview mirror glass may crack
- A no charge condition with diagnostic trouble code (DTC) P0380, P0621
- Unable to locate emergency light relay and/or blunt cut wires
- Battery or charge indicator light remains on for up to 30 seconds after a cold start and engine running
- Oil pan or oil cooler line leak on gen III V-8 engines equipped with an oil cooler
- Engine misfire due to injector fretting corrosion
- Power steering fluid leaking at hydraulic brake booster
- Repeat engine oil leak at main bearing side bolt
- 6.0L LQ4 VIN u engine restriction
- Parts showing no stock or not available
- Vehicles and hummer H2 with a high altitude stall
- Fuel sender information on trucks with 6.6L diesel
- Wheel alignment specs for spring special and texas truck
- Replacement tailgate cables bind at shoulder bolt
- Engine cylinder head cup plug coolant leak
- Glow plug control module loss of communication, possible diagnostic trouble code (DTC) U0106 set, and DTC...
- 04 model year 4.8.5.3.7.6.0 gen III engine piston pin information
- Squeak or creak noise from underbody over bumps
- 4.8L 5.3L 6.6L 8.1L P1285 P1286 or P2133 after replacing app sensor
- Service vme - 03 - 04 full size truck, utilities and hummer H2 passenger door module inoperative
- When using voice recognition dialing, some numbers or commands may not be understood by the system...
- Rear axle locking differential chatter shudder noise on turns
- Tinny rattle type noise from the roof at highway speeds
- Various steering or suspension concerns after gm accessories 20 inch tire/wheel assemblies have been installed
- Cruise control and/or the power take off unit (PTO) may be inoperative
- Timing chain tensioner breakpoints for service kit or production kit
- Air conditioner (a/c) low pressure switch diagnostic tool
- Starter grinding noise during cranking on vehicles equipped with the allison automatic transmission
- Whistle noise from the throttle body area on light throttle acceleration on vehicles with gen III engines...
- Crank no start with no cranking RPM spark or injector pulse
- Updated part number for bulletin 04-08-49-019 stall, inaccurate/incorrect fuel gauge reading
- Rattle type noise coming from the rear of the cab during body twist maneuvers or over bumps
- Downhill cruise control surge
- Repeat HVAC blower motor failure
- 04 full size trucks and utilities with VIN g, n, t, v and u engines may have a high altitude, high ambient...
- The engine coolant temperature or intake air temperature sensor may read -40 degrees when monitored with...
- 02-05 onstar equipped vehicles emitting beeping noise before connecting to onstar
- Auto volume inoperative after ignition key is cycled
- Engine tick, rattle or knock noise after cylinder head gasket replacement on the 6.0L engine
- Intermittent concern of the service 4 wheel steer message being displayed on the dic
- Replacement flexplate may have larger bolt holes than the original flexplate
- Service engine soon light with a P0300 misfire due to misfires mainly on cylinder 7
- Additional part numbers for bulletin 02-01-38-007B
- Performance package rpo pcx
- Allison LCT1000 diagnostic trouble code P1711, P0872 after completing repairs
- All full size trucks pick up box sheet metal fracture/damage with aftermarket accessories installed
- Engineering is investigating the 04 6.6L LB7 injectors for concerns of DTC P1093 and high return line flow...
- Concerns regarding bulletin 00-02-35-003F
- Speedometer inoperative
- Smoke, fuel knock, surging, and high injector balance rates
- Low power service engine soon/malfunction indicator light on diagnostic trouble code P0116 and P0299
- Excessive tire spin setting diagnostic trouble code C0543
- Erratic oil pressure with diagnostic trouble code's P0522 and/or P0523
- Instrument panel cluster parts restriction
- Gas engines exhaust buzz or rattle noise
- Exhaust vibration resonance or moan
- Engine low speed engine RPM surge
- Allison lct 1000 prndl flash and/or will not move
- Engineering investigation - catalytic converter replacement
- Accessory drive belt chirp noise at cold idle
- Onstar center unable to perform remote diagnostic
- XM radio was working prior to july 26, 2004 and it is inoperative now
- 6.6 LB7 engine with a no charge condition with diagnostic trouble code P0380 P0621
- P0420 and P0430 dtsc in the detroit, michigan area with gen III V-8 engines
- Gen 6 vehicles in mount airy, nc cannot connect to onstar or emergency services
- Allison lct 1000 transmission prndl inoperative and no communication with the tech 2 scan tool
- Allison lct 1000 buzz noise feel on tcc apply
- Unable to perform set up new onstar on vehicles with gen 6.05 hardware
- Oil pan or oil cooler line leak
- Allison lct 1000 P1781 or P0802 setting in the electronic control module
- Exhaust vibration resonance or moan in vehicles with gen III V8 engines
- Allison LCT1000 overdrive disable lamp inoperative after installation of instrument panel (IP)
- Automatic dual zone HVAC battery draw supplement to 02-01-39-007A
- Allison LCT1000 transmission hard to remove from park
- Revised clutch pressure plate adjustment
- Service 4WD light on, the 4WD is inoperative and no codes besides U1000 codes
- Dic message that the fuel cap is not on tight
- 2004 new model product changes
- HVAC blower motor fan stays on in the high blower position
- Allison LCT1000 diagnostic trouble code (DTC) P0700 and no communication with the tech 2
- Gen III engine noise after hot soak restart
- Allison LCT1000 serviceability
- Allison LCT1000 repeat transmission control module (TCM) failures with possible multiple diagnostic...
- Some owners of 03 g-vans or 04 c/k trucks driving at high altitude with warm ambient temperatures may...
- The allison LCT1000 transmissions may experience a leak from oil pump area
- XM radio must be tuned to channel 1 through 66 during activation attempt
- Service 4WD light on no codes besides U1000 codes
- 6.6L duramax LB7 engines with turbocharger system whine noise
- Allison LCT1000 diagnostic trouble code (DTC) P0700 unable to communicate with the transmission control...
- Airflow sensor problem
- Transmission fluid leaks out of vent when truck is started after a cold soak
- Squeak noise coming from the front of the vehicle
- 4L60-E automatic transmission oil pump first and second design identification
- Transmission fluid leak from front of transmission - torque converter housing/pump area
- Duramax diesel fuel in oil diagnostics revisited
- The engine diagnostic fuel leaks inside of the engine
- Excessive duramax turbocharger whine noise or possibly a performance or a fuel economy complaint
- Starter cranks after key is released (normal condition)
- Revised diagnostic trouble code (DTC) P0093 or DTC P1093 diagnostic tables
- Revised engine cranks but does not run diagnostic
- Revised fuel system diagnosis-high pressure side
- Revised fuel system diagnosis pickup
- Revised fuel injector balance test with tech 2 (manual transmission)
- Revised fuel injector balance test with tech 2 (automatic transmission)
- Information on new spark plugs and gapping
- Allison automatic transmission valve body hardware changes
- Inner tie rod released for service
- Blueheat coolant heater thermo top c
- HVAC blower motor may run continuously after vehicle is turned off
- Diagnostic information for replacement remote keyless entry (RKE) transmitter inoperative - unable to...
- Avoiding oil level sensor harness damage during lower oil pan installation
- Availability of replacement parts for wide load outside rearview mirrors
- Information on removing front door trim panel to avoid breakage
- This vme message applies to the valve body for the allison series 1000 transmission revised for the 2004...
- Higher than expected oil consumption <8500 gvw. various models including 2003-2004 chevrolet kodiak...
- Availability of starter motor solenoid if damaged during service
- Information on removing the front door trim panel during switch removal to avoid breakage
- Changes in air conditioning compessor on/off instrument panel display symbol from 2003 to 2004 model year...
- Shift stabilization and tow/haul mode feature for hydra-matic 4L60-E/4L65-E and 4L80-E/4L85-E transmissions
- 6.6L and manual transmission growl noise while engaging or disengaging clutch
- XM dealer assistance line information
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