KENWORTH Complaints

Flowmark of Kansas city Missouri built my company a truck. When adding an upfit body (AKA septic tank skid unit) there was no motor carrier calculation done for the rear axle weight. Upon my arrival to pick up the truck I could see that the rear axle was overloaded. Addressed with flowmark and they admitted a calculation had not been done. They moved the unit forward to the correct position, during this time no care was taken when drilling the new mounting holes, in which case resulted in 21 holes too close together. This truck is not safe, nor does it meet the manufactures recommendations. I took the truck to a Kenworth dealer and they have provided the documentation that says this truck is not correct and needs the entire frame of the truck replaced. Flowmark wants to bring the truck back to KC from Ohio and weld the holes shut and paint them and send the truck back. This again is against Kenworth's recommendations.

The contact owns a 2023 Kenworth T680 with the camper attached. The contact stated that the ABS warning light was illuminated before the failure. The contact stated that while standing behind the passenger side seat in between the sleeper portion and the cab, there was an abnormally loud popping sound detected. The vehicle began to move and crashed into the door of an unknown tractor-trailer cab. The vehicle had been parked for approximately 45- 60 minutes before the crash. The contact had to seek medical assistance from a therapist due to the incident. There was no report of fire, airbag deployment, or police report filed. The local dealer was not contacted. The vehicle was not diagnosed or repaired. The manufacturer was not contacted. The failure mileage was approximately 25,000.

My circumstances are EXACTLY as described in a release 12/19/2019 Tech Service Bulletin A002 I experienced the vibration in my steering wheel that caused me to be suspect that there was something wrong in the drive train. Upon further investigation. I noticed that an oil seal was leaking, and when I dug a little deeper, I noticed gears that were broken and shaved down and then stopped at a Kenworth corporate location upon which they told me that I needed to purchase the entire unit to fix it. I then decided that I was going to add some differential oil and drive at a speed of 45 miles an hour, which did not cause any vibration to Chicago, which was roughly 3 hours away from my location in Michigan upon which I would have more resources at my disposal. It is then that I learned of the technical service bulletin relating to my issue. I then took it to CIT trucks which is where I learned that you do not have to buy the complete unit that. The parts are available to be purchased to fix the issue. They did, however say that they would process the claim on behalf of this technical service bulletin. They advised me that the individual that they got a hold of seem to have an attitude about it and sometimes this happens whereas other times they will get a hold of somebody that will make an exception. Apparently they stated my situation is two months out of warranty from when my tractor was placed into service but it’s original owner. I am not in a position due to other issues that I have experience with the truck since purchasing it in June that I can afford this but more importantly, there is a known issue with the same exact identical problem that I experienced. I need help with my situation they need to be held accountable for what has gone wrong because it is not my fault.

The contact owns a 2023 Kenworth T680. The contact received notification of NHTSA Campaign Number: 24V190000 (Power Train) however, the part to do the recall repair was not yet available. The local dealer was contacted. The contact stated that the manufacturer had exceeded a reasonable amount of time for the recall. The contact stated that while driving at an undisclosed speed, the transmission was not operating properly. The contact stated that the vehicle downshifted unexpectedly with the transmission fault warning light illuminated. The vehicle was restarted; however, the failure recurred. The dealer was contacted; however, the vehicle was not repaired. The manufacturer was made aware of the failure. The failure mileage was approximately 338,388. The VIN was not available.

Throw out bearing failed prematurely. Truck only has 491,000 miles and has had a catastrophic failure resulting in a $29,000 repair bill. I have 4 other trucks like this and they are all showing signs of the same thing.

Axle Housings are frequently cracking on these trucks, could cause major accident Fleet garage found during routine maintenance Multiple units with the same issue No support from manufacturer

When driving, the truck will not go into gear. For example, if I am trying to shift gears in the automatic, it will stay in that gear. When traveling down the highway, it stays in a gear. I have to find a safe place to pull over and put it in neutral, then proceed. I have already changed the right hand stalk once before and it didnt go into reverse, that was the reason for changing it. I get codes saying that it needs to ve changed again and it was just recently put on.

We have under hood fire during operating the truck. The driver was driving in TX. The police and fire department need to be involved to extinguish the fire. The truck need to be towed to terminal. The two dealers were doing estimate and the try to look up the causes of the fire, but is seems they not able to find it. We asked some privet mechanics and they think that fire could start from starter. The truck is 2019 T680 455,972 miles with engine Paccar MX-13. The truck is available fot inspection.

The contact's employer owns a 2023 Kenworth T680. The contact stated that while driving at 55 MPH with the Lane Departure Mitigation System activated, and the brakes were applied unintendedly. The vehicle was not diagnosed or repaired. The manufacturer was not notified of the failure. The failure mileage was approximately 135,000.

We bought this truck with 401, 000 miles on it. So far we have had to replace the rear ends twice. the whole DPF system, the check engine light still on since the day we bought the truck. We have had 5 NOS sensors put into the truck, 6 input and output sensors put into the truck. This truck has been defective since the day of purchase. We keep having the same error code of p3770 come up evetime we take to shop. The error code has been looked at so many times that even the master techs don't know what is wrong with the truck other then we keep replacing the same stuff over and over again.