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10.0

really awful
Crashes / Fires:
0 / 1
Injuries / Deaths:
0 / 0
Average Mileage:
0 miles

About These NHTSA Complaints:

This data is from the NHTSA — the US gov't agency tasked with vehicle safety. Complaints are spread across multiple & redundant categories, & are not organized by problem.

So how do you find out what problems are occurring? For this NHTSA complaint data, the only way is to read through the comments below. Any duplicates or errors? It's not us.

2021 Ram 3500 engine problems

engine problem

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2021 Ram 3500 Owner Comments

problem #5

May 142024

3500

  • miles

A D V E R T I S E M E N T S

There exist a defect which is common through multiple years with RAM that have the Cummins 6.7L diesel engine. The problem is the heater bolt in intake system. When this fails it falls into intake and proceeds into piston which requires engine rebuild. Unfortunately the same part is put back in causing repeat. Solution Banks Monster Ram Intake system. Many, many owners over years have experienced loss of vehicle in both new and older models. Engine lock up can cause loss of steering and worse on highways.

- Bayfield, CO, USA

problem #4

Apr 212024

3500

  • miles
Catastrophic lifter failure. Was able to safely deliver vehicle to dealership service department. If not handled properly, engine failure could occur while driving and hurt/kill someone.

- Fort Worth, TX, USA

problem #3

Jul 112023

3500

  • miles
See attached document from complainant

- Clermont, FL, USA

problem #2

Jan 022023

3500

  • miles
When coming to a complete stop and the brake fully pressed down, the truck will lunge forward and almost hit the car in front of me. Then the trucks idle will reduce and it will start to shake. Several people have reported this issue on this year vehicle. Many people have stated that it is due to a faulty solenoid Torque Converter Clutch (TCC). Please investigate as this could cause a serious accident if the truck lunges and hits a pedestrian in the crosswalk.

- Ridgecrest, CA, USA

problem #1

Sep 022021

3500

  • miles
Our vehicle was involved in a total loss fire from the engine compartment while driving. We were driving the unit and noticed smoke, when we were merging to pull of the road flames started coming up and we immediately exited the vehicle and had to run, because it started popping. We were lucky to escape unharmed physically, but the situation could have been much worse. There were no indications or lights warning of engine failure or fire. This occurred on September 2, 2021. At this point in time there were no recalls on the vehicle. When we contacted Stellantis to report the incident, they concluded their investigation they denied responsibility. A few months after the fact we received notice of the recall. To date we have not been reimbursed for the loss of the vehicle, our personal belongings in the vehicle, and the loss of income from no longer having the vehicle. Our insurance company, Stellantis, etc all inspected the unit related to the claim and confirmed the fire began in the engine compartment.

- Canadian, TX, USA

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