Tru-flex torsional bellows pipe connecting engine turbo charger and exhaust pipe in engine compartment leaks hot exhaust gases into cab where operator is located. Hot exhaust gases escape from this frequently failing part and starts fires on nearby combustible components. Fmcsa part 393.83 2 e and g is violated. This problem extends at least to model year 2010 thru 2014 in several different forms. Operators are forced to replace these defective devices at their own expense. Some operators have experienced several small fires and there has been at least one fire destroying a truck. Most of these fires have been suppressed by the owner operators when they are small. These fires are especially common on trucks used for carrying logs in the up of michigan. One specific fire was reported to michigan state police and michigamme/spur fire department. The truck was traveling on a forest road at the time of the incident. Owner operators are in some cases now purchasing extra tru-flex connectors to have on hand because of the high failure rate. Exact dates of all fires is not known.
The worst 2010 Kenworth T800 problems
Ranked by number of owner complaints. Mileage and cost come from what owners wrote.
Problems by type
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Recalls 11
Service brakes, air: supply: reservoir/tank
- What is wrong
- PACCAR Incorporated (PACCAR) is recalling certain 2009-2021 Kenworth C500, 2012-2021 Kenworth T440, 2009-2015 Kenworth T660, 2015-2024 Kenworth T680, 2009-2024 Kenworth T800, 2009-2020 Kenworth T370, 2014-2023 Kenworth T880, 2011-2016 Kenworth T470, 2023 Kenworth T480, and 2009-2019 Kenworth W900 vehicles. The air tanks have an insufficient volume of air for the brake system. As such, these vehicles fail to comply with the requirements of Federal Motor Vehicle Safety Standard number 121, "Air Brake Systems."
- Risk
- Insufficient air volume can reduce braking performance and increase the risk of a crash.
- Remedy
- Dealers will install the correct volume air tanks, free of charge. Owner notification letters were mailed August 12, 2024. Additional owner notification letters were mailed October 27, 2025. Owners may contact PACCAR customer service at 1‑425‑828‑5888. PACCAR's number for this recall is 24KWD.
Recall number 24V145000 · Recall details
Electronic stability control (ESC)
- What is wrong
- PACCAR Incorporated (PACCAR) is recalling certain 2008-2019 Peterbilt 330, 335, 337, 340, 348, 365, 367, 384, 386, 387, 388, 389, 567, 579 and 587 vehicles and 2008-2020 Kenworth T170, T270, T370, T660, T680, T800, T880, and W900 vehicles equipped with NAMUX Software. In the event that the Anti-lock Brake System (ABS) loses battery and/or ignition power to the controller, the dash warning light for the ABS may not illuminate to warn the driver of the loss of ABS. As such, these vehicles fail to comply with the requirements of Federal Motor Vehicle Safety Standard (FMVSS) number 121, "Air Brake Systems," and 136, "Electronic Stability Control System on Heavy Vehicles."
- Risk
- If the driver unknowingly operates the vehicle without the ABS functioning, there would be an increased risk of a crash.
- Remedy
- PACCAR will notify owners, and dealers will update the NAMUX software within the cab control module, free of charge. PACCAR issued owners an interim notification on June 4, 2020. The recall began May 26, 2020. Owners may contact Kenworth customer service at 1‑425‑828‑5888 or Peterbilt customer service at 1‑940‑591‑4220. PACCAR's number for this recall is 20pbc AND 20KWB.
Recall number 20V199000 · Recall details
Engine and engine cooling: engine
- What is wrong
- PACCAR Incorporated (PACCAR) is recalling certain model year 2010-2016 Kenworth T440, T800, and W900 trucks manufactured August 31, 2009, to April 20, 2015, and 2008-2015 Peterbilt 320, 337, 348, 365, 382, and 384 trucks manufactured July 27, 2007, to April 28, 2015, and equipped with certain Cummins Westport ISL G engines. Excessive engine crankcase pressures may cause the 90-degree elbow of the vent tube assembly to detach from the crankcase ventilation breather, possibly allowing engine oil to come into contact with hot surfaces.
- Risk
- If engine oil comes into contact with a hot surface, there is an increased risk of a fire.
- Remedy
- Cummins will notify owners on behalf of PACCAR, and Cummins service centers will administer the repairs which include securing the ends of the 90-degree elbow and reprogramming the electronic control module (ECM) with software that can adjust the engine output under misfire conditions to limit crankcase pressures. These repairs will be performed free of charge. The recall began on June 12, 2015. Owners may contact Kenworth customer service at 1‑425‑828‑5000, Peterbilt customer service at 1‑940‑591‑4000 or Cummins Inc. at 1‑800‑343‑7357. PACCAR's number for this recall is 15KWH and 515-G.
Recall number 15V309000 · Recall details
Service brakes
- What is wrong
- PACCAR is recalling certain model year 2007-2014 Kenworth T800 and W900 trucks manufactured March 22, 2006, through July 15, 2013 and equipped with Primaax tridem rear suspensions and a pusher and/or tag axle. The affected trucks have brake chambers that take longer to apply or release the brakes than the required time limit. Thus, these vehicles fail to conform to the requirements of Federal Motor Vehicle Safety Standard (FMVSS) No. 121, "Air Brake Systems."
- Risk
- Brakes that take longer to apply may lengthen the distance needed to stop the truck, increasing the risk of a crash.
- Remedy
- PACCAR will notify owners, and dealers will modify the air brake system, free of charge. The recall began on January 15, 2014. Owners may contact PACCAR at 1‑425‑468‑7400. Kenworth's recall number is 13KWL.
Recall number 13V573000 · Recall details
Fuel system, other: storage: tank assembly
- What is wrong
- Paccar is recalling certain model year 2008-2012 kenworth t2000, t660, t700, t800, and w900, as well as model year 2009-2012 peterbilt 365, 367, 384, 386, 387, 388, 389, and 587 trucks equipped with paccar mx engines. The oil module centrifugal spinner filter cap in the paccar mx engine may become loose, possibly allowing the cap to come off and engine oil to partially discharge from the oil module onto exhaust components.
- Risk
- The discharge of engine oil onto exhaust components which are hot, such as when the engine is under significant load, may cause a fire.
- Remedy
- Dealers will re-torque the oil module filter cap and install a secondary retention device on the secondary centrifugal spinner filter cap. This service will be performed free of charge. The safety recall is expected to begin during march 2011. Owners may contact kenworth at 1‑425‑828‑5440 and peterbilt at 1‑940‑591‑4196.
Recall number 11V127000 · Recall details
Service brakes, air: disc: caliper
- What is wrong
- Paccar is recalling certain model year kenworth t660, t700, t800 and w900 vehicles manufactured from december 22, 2008, through august 2, 2010, and equipped with ag400l air disc brakes. The air disc brake caliper could be installed on the wrong side of the drive axle potentially causing interference with the suspension bracket and the rear suspension as the outermost brake pads wear and the floating caliper moves inboard.
- Risk
- As this interference gets larger, this could eventually lead to reduced braking performance, increasing the risk of a crash.
- Remedy
- Dealers will verify the correct orientation of the brake caliper and perform the necessary repair free of charge. The safety recall began on november 24, 2010. Owners may contact kenworth at 425‑828‑5440.
Recall number 10V535000 · Recall details
Steering: column
- What is wrong
- Paccar is recalling certain model year 2008-2010 trucks equipped with trw steering shafts. The circumferential weld around the steering shaft tube that welds the splined tube to the non-splined tube may be mislocated. Mislocation of the circumferential weld may allow the splined tube and non-splined tube to rotate relative to one another during a low speed, high torque turn, possibly resulting in a separation of the two tubes.
- Risk
- A separation of the splined and non-splined tubes would cause a loss of steering control and increase the risk of a vehicle crash.
- Remedy
- Dealers will inspect the steering shaft using a weld placement gauge provided by trw. Any steering shaft found to have been welded improperly will be replaced free of charge. The safety recall began on july 30, 2010. Owners may contact kenworth at 425‑828‑5440 and peterbilt at 940‑591‑4196.
Recall number 10V308000 · Recall details
Suspension: rear: axle: spindle
- What is wrong
- Kenworth is recalling certain model year 2010 t2000, t660, t800 and w900 vehicles manufactured between july 30, 2009 and september 18, 2009. The rear axle outer end hub may have not been primed with oil properly during the rear axle installation process. Potential lack of oil may cause the outer end bearing to heat up and/or seize, possibly resulting in the overheating of the wheel end.
- Risk
- A wheel end fire may occur, increasing the risk of a crash.
- Remedy
- Dealers will replace the bearings, seals and will add oil to the outer end hub as well as inspect races and axle housing for damage and replacing as necessary free of charge. The safety recall began on may 24, 2010. Owners may contact kenworth at 425‑828‑5440.
Recall number 10V185000 · Recall details
Steering
- What is wrong
- Kenworth is recalling model year 2010 t2000, t800, t660 and w900s trucks manufactured between july 1 and october 23, 2009. The fasteners attaching the steering gear to the front drive bracket may have received insufficient torque during the installation process resulting in less than required clamp load.
- Risk
- The insufficient clamp load may allow the fastener(s) to become loose and fall away from the vehicle resulting in road debris. If multiple fasteners were to become loose, the vehicle steering may wander, which could result in a crash.
- Remedy
- Dealers will inspect and re-torque the steering gear mounting bolts free of charge. The safety recall is expected to begin during january 2010. Owners may contact kenworth at 1‑425‑828‑5440.
Recall number 09V490000 · Recall details
Power train: axle assembly
- What is wrong
- Kenworth is recalling model year 2009 through 2010 t2000, t800, t660 and w900 trucks manufactured between november 12, 2008 and september 30, 2009. The axle u-bolts attaching the axle to the suspension leaf spring on certain ag400l rear suspensions may have received insufficient fastener torque during the installation process. The insufficient torque may allow the axle u-bolt to become loose, which may cause vibration in the rear suspension.
- Risk
- If multiple fasteners were to become loose, the rear axle may shift relative to the rear suspension leaf spring, which can result in loss of control and a crash.
- Remedy
- Dealers will inspect the axle u-bolts for visible defects, including bent and/or smashed threads and re-torque the axle u-bolts to factory specifications. The recall began on november 4, 2009. Owners may contact kenworth at 425‑828‑5440.
Recall number 09V415000 · Recall details
Engine and engine cooling: engine: diesel
- What is wrong
- Paccar is recalling model year 2008-2010 kenworth t300, t270, and t370, model year 2009-2010 t800 and peterbilt model year 2008-2010 335, 340, and 367 vehicles built on cummins' diesel engine. The vehicles may be designed with a hard wired, dash-mounted switch that enables the vehicle operator to inhibit aftertreatment diesel particulate filter regeneration in environments where the operator believes it may be unsafe for elevated exhaust temperatures. Due to an issue with the logic in the ECM software in these engines, the switch may not function correctly, leading the operator to believe that the switch is in "inhibit" mode when it is not.
- Risk
- This condition will permit hot exhaust gases to exit the vehicle tailpipe, increasing the risk of melting or burning of nearby surfaces, or a fire.
- Remedy
- Paccar is working with cummins to repair the engines free of charge please see 09e-046. The safety recall began on october 1, 2009. Owners may contact cummins at 1-800-diesels (1‑800‑343‑7357).
Recall number 09V348000 · Recall details
Technical service bulletins for the 2010 Kenworth T800 60
Bulletins tell dealers how to fix known problems. A warranty extension means the manufacturer pays for that repair for longer.
- Due to supplier constraints, an authorized aftermarket surge tank has been made available.
- Kenworth: Dealers should check the chassis list and SIR weekly for VIN changes
- Certain C500/T440/T470/T660/T680/T800/T880/W900 chassis may have air tank reservoirs that do not meet air...
- Information Only – Windshield washer pumps have a high No Trouble Found rate
- Information Only:
- Information Only: Proper jump-starting voltage will eliminate high voltage related issues and equipment...
- Information Only – Vehicles may have the connector seals on the wheel speed sensor incorrectly installed,...
- Information Only:
- Kenworth: some trucks failed to meet company standards for air volume lift axle and the company will...
- Kenworth: procedural information provided regarding the replacement of hood where there are damaged hood...
What 2010 Kenworth T800 owners say
Most recent owner complaints, unedited.
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Questions about the 2010 Kenworth T800
Is the 2010 Kenworth T800 reliable?
Owners have filed 1 complaint about the 2010 Kenworth T800, close to a typical T800 model year.
What is the most common problem with the 2010 Kenworth T800?
There are not enough complaints to tell.
How many recalls does the 2010 Kenworth T800 have?
11 recalls, covering service brakes, air, electronic stability control (esc) and engine and engine cooling.
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