GMC Sierra knocking problems

Filed Jan 15, 2015 · Brakes · TX

Tl* the contact owns a 2008 gmc sierra. While driving at approximately 30 MPH, the contact heard a ticking noise and the brakes failed to stop the vehicle. The vehicle was taken to the dealer. The technician diagnosed that the brakes failed and needed to be replaced. The vehicle was not repaired. The contact was made aware of the federal safety agency campaign number: 14v459000 (service brakes, air) however, the parts needed to do the repair were not available. The failure recurred on several occasions. The manufacturer was not made aware of the failure. The failure mileage was unknown.

Filed May 24, 2014 · Engine · 59,640 miles · LA

Crank vehicle turn corner , message engine power reduced, check engine light appeared, turn around return 200 feet to home, check all fluids connections turn off ignition, unable to start engine, let sit, unable to start engine, drive wife to work other vehicle, recheck all fluids connections, refill coolant, crank engine, coolant discharge on overflow line on cold engine, kill engine would not start, go to autozone get extra coolant and new gas cap. Return coolant level ok. Install new gas cap, engine hard to crank like vapor lock or no fuel to engine. Crank engine, let run, kill engine. Unable to crank, return to work, return in 3 hours, reinstall old gas cap, check fluid levels, ok. Crank engine let run for 5 minutes, check engine light still on, wait one hour, crank engine back to normal check engine light off, engine run ok, drive short test drive. Unable to operate vehicle safely for 6-8 hour period, unsure if vapor lock, bad fuel, fuel filter, bad plugs, coil on plugs, loose plug wire, etc. Never had any engine problems in the past. Only instrument panel cluster failure, and steering click knock that was fixed by dealer. Research problem on internet, it appears this is a throttle position sensor failure that gmc has identified as a safety problem and made a special extended coverage for 2008 to current year vehicles or ten years or 120000 miles. Fromresearch on computer, it appears tens of thousands of comments regarding this loss of power and engine stop. I am older man and reacted with caution and was near my home. Had I been on a busy street or highway a crash or injury would most certainly occurred with this disabled vehicle the cause. I had never imagined this would happen to me nor had I heard of it from any media source or dealer memos. I am hesitant to drive any distance or on certain high traffic roads due to this problem recurring.

Filed Jan 24, 2014 · Engine · 97,000 miles · CA

Truck was making a "knocking" noise upon start. Took to dealership mechanic and informed, based on the noise and where it's coming from, it's most likely a cracked cylinder and informed this is "common." really?? Will cost thousands to repair ... Which I don't have. Frustrating to say the least. It has low miles, serviced regularly. If this is "common" why won't gmc step up and take care of it??

Filed Jul 22, 2010 · Airbags, Brakes · 1,000 miles · WA

Tl*the contact owns a 2009 gmc sierra 1500. The contact started the ignition and heard a loud knocking noise on the outside of the vehicle. The failure began one week after the vehicle was purchased. In addition, the brakes would shake and vibrate when they were engaged. The engine consumed an excessive amount of oil. The air bag sensor also caused the air bag warning light indicator to illuminate. The vehicle was taken to an authorized dealer where the engine and air bag sensors were replaced. The engine failure continued to occur after the engine was replaced. The contact stated that the vehicle was taken to the dealer fifteen times. The manufacturer was notified of the failures and only offered her a free oil change for one year. The vehicle was not repaired. The failure mileage was approximately 1,000.

Filed Jun 3, 2008 · Brakes, Electrical · GA

Returned to dealer 4 times for: brakes going out (4 new sets installed) abnormal wear on tires (f) valves chattering at 10-65 MPH returned to dealer 3 times for: steering sector knocking front axle making warping noise transmission clunking when shifting up or down returned to dealer 2 times for: various electrical/light problems smoking in passing gear or hard take off all of the above problems are still on-going and have not been repaired.

Filed Apr 4, 2007 · Steering · 24,000 miles · CA

For the past 6 months I have noticed that my steering wheel shakes when I slow down at stop signs. I also have noticed a clicking/knocking noise when I make turns and I can feel it through the steering wheel. I will be scheduling an appt. For this immediately.

Filed Mar 6, 2007 · Steering, Suspension · 2,100 miles · FL

I have issues with my alignment, dealership can not fix the problem it has been in service 9 times for the alignment. I also have knocking noise and a steering shaft problem again dealership has not resolved the issue.

Filed Apr 17, 2006 · Engine · 85,000 miles · AL

Dt*: the contact stated while driving 70mph, the engine failed without warning followed by smoke erupting from the front underhood area with no visible flames. The contact managed to coast the vehicle to the curb in neutral and exit the vehicle. Upon initial inspection on the skid plates, there was a rod bearing failure, but oil was still present. The vehicle was towed to an independent repair shop for further inspection. The mechanic determined there was a hole in the engine block, however the vehicle received regular maintenance and there were no obvious road hazards.

Filed Feb 22, 2006 · Engine · 65,000 miles · WI

Dt*: the contact stated a knocking noise was heard momentarily when starting the vehicle. The vehicle has been taken to the dealership 3 times who determined the pistons were knocking. The problem cannot be repaired. The dealership informed the contact of a tsb #010601028a. Updated 3/9/2006 -

Filed Dec 20, 2005 · Locks, Steering · 1,534 miles · SC

#1 04 sierra 4x4 returned to dealer after 2 weeks (9/18/04) with 1523 miles for hard shifting. Clutch was not installed correctly from factory. Engage and disengage point in clutch pedal travel is at full depression into the firewall. #2 passenger door hard to close fully. Driver side door closes as expected with little effort. Passenger door will not close completely without undue force being applied or a window cracked. #3 returned truck to a different dealership on 9/15/05 with 8,190 and again 12/15/05 with 10,282 miles. For a knocking noise during turning, clutch not engaging and disengaging correctly, passenger door not closing completely, and a new rattling noise from the transmission along with a whine noise from the gears. The dealership fixed the knocking noise from a service bulletin concerning a steering bushing. This dealership also stated they found nothing wrong with the clutch or the transmission or the passenger door. None of the problems were fixed #5 I immediately took the truck to an independent transmission specialist after picking it up from the dealership for a 3rd opinion on 12/20/05 with 10,284 miles. His opinion was flatly stated that the truck has major problems with the clutch and the transmission. His evaluation was the clutch was not installed correctly from the factory and depression into the firewall was not correct. The transmission has synchronizer and possible bushings and bearings that were failing. He stated the noises alone were definite indicators that the transmission has problems and that anyone would know that a clutch is not required to be depressed into the firewall for proper operation which in time will lead to premature clutch failure. This evaluation cost me $30 and 3 hour lost from work.