The 2019 to 2020 model year Ram 2500 heavy duty equipped with a 6.7L cummins diesel engine has a safety issue that could cause a stall and increase the risk of a crash. The Bosch CP4.2 fuel injection pump has a very high rate of sudden failure leading to immediate stoppage on the engine and engine braking system.the pump destroys itself and takes out the rest of the entire fuel system leading to repairs in the $15,000-20,000 usd range. Fca & Ram have attempted to revise the pump in late (July) 2020 to solve the issue but the failures keep occurring. For the 2021 model year, fca & Ram have switched back the pump entirely and reverted back to using an older, safer, more reliable design CP3. No public announcements of neither the pump revision in 2020, nor the pump change in 2021 have been made. The issue is so prevalent that the replacement pumps and repairs generally have a 30-90 day wait period where the customer is without the primary vehicle. This problem is a substantiated safety risk. According to a Texas judge in a Bosch CP4.2 lawsuit, when another automaker, GM tried to dismiss the case saying the pump failure is not a safety issue, the court responded: "the worst case scenario of a truck spontaneously stalling at high speeds is not a mere inconvenience. Nor is it a mere inconvenience to spend between $8,000 to $20,000 on repairs to make the trucks fit for their ordinary purpose. The court rejects GM's suggestion that the risk of spontaneous engine failure while driving is not, as a matter of law, unreasonably dangerous, depriving the vehicles of fitness for their purpose of transportation.". Toyota agrees: "if a vehicle stall occurs while driving at higher speeds, this could increase the risk of a crash". fca & Ram have remedied the situation for the 2021 model year however, the 2019 and 2020 owners are still at risk.

- Mount Dora, FL, USA

I bought my truck in tampa, fl in August with 23K miles truck has 30K now I was driving thanksgiving morning after filling tank off in a trusted gas station that I fill all my 3 trucks 2016, 2018, 2020 Ram 3500. I drove about 35 miles and truck started to decelerate lost power within 2 miles and engine shut down and never started again I took to the arrigo Dodge tamarac dealer and after 6 days the mechanic diagnosed that fuel has regular gas in it because they never has seen this to happened before. They said the only was fuel pump explode is that lacks of lubrication. They don't have a clue what are they saying I had my father in law ask the mechanic to give a sample of the diesel and after mechanic giving all bunch of excuses finally we got a sample. I have been resourcing and there are other truck with same problem in different states. Truck is under warranty and it seems to be that they are calling the wrong diagnose with no support documents.

- Coral Springs, FL, USA

The contact owns a 2020 Ram 3500. The contact stated while driving 65 mph and towing a generator up a hill, the vehicle stalled with the diesel exhaust and engine stability control warning lights illuminated. The vehicle was not drivable. The vehicle towed to platinum Chrysler Dodge Ram Jeep located at 65 tx-557 spur, terrell, tx 75160, (469) 249-9407, where it was diagnosed with needing the fuel pump to be replaced. The vehicle was not yet repaired. The manufacturer had been informed of failure. The failure mileage was approximately 16,684.

- Odessa, TX, USA