the forward fuel filter canister is constructed of plastic.i have found several blog sites complaining of the canister cracking and leaking fuel down the side o the engine.i replaced the filter in my truck several months ago and last week I noticed a heavy flow of fuel coming from under the diesel motor.the dealer said I did the damage when I changed the filter[a very simple job that any room temperature IQ mechanic could perform}now they want to charge me hundreds to replace it. I found a company that has already made a better part to replace the cheap plastic canister with a billet aluminum fixture.i don't think its right to push off their poor quality parts on consumers and then make them pay to fix it.check out Cummins Forum and Black Market Performance for the improved replacement parts.

- Carlsbad, CA, USA

My 2022 Ram 2500 with only 9,900 miles failed to start requiring it be towed to the dealership. The dealer reported the fuel injector harness had failed and replaced it but then it started throwing other codes. The technician determined there was metal shavings in high pressure fuel pump (HPFP) so they contacted Ram engineers and started a STAR case. After two months and countless "pictures" taken and sent the the Ram engineers, they claim it was contaminated fuel which caused the metal shavings to be found in the HPFP. The engineers stated that there were no metal shavings found in the return filter so the metal shaving came from "contaminated fuel." This logic is impossible because for metal shavings to make it from the fuel tank to the HPFP and be visible they must travel through two fuel filter, one of which filters down to 5 microns. The dealership acknowledged the engineers logic didn't make sense to them either. The return filter showed some debris but if metal shavings can pass through a 5 micron paper filter than it would also pass through the metal screen found on the return line inside the tank. Ram is refusing to honor their warranty and trying to stick me with the bill even after they already are aware of a faulty fuel pump in their trucks.

- Midlothian, TX, USA

DEF sensor malfunctions, threatening to limit vehicle to 5 mph or stop completely. This is because DEF fluid freezes in cold weather. Sensor reads that DEF tank is empty, even when it is full. Contacted local dealer who confirmed the issue and noted that it is a prevalent problem and he has a backlog of trucks with the same issue. I consider this a safety issue, as I could be stranded on the road in winter conditions or not have access to my vehicle in case of emergency. Google search shows that this is a significant issue affecting many people. Dealer said that the only solution is to put the vehicle in a heated garage for several days to defrost the DEF and allow the sensor to reset. They currently have a backlog of several weeks. And then what happens when you get it back" You hope it doesn't refreeze and strand you on the road somewhere"

- Vershire, VT, USA

This is a 2022 Ram 2500 Long Horn with teh 6.7L Cummings Diesel. I have owned it for 30 days and it has 1475 miles on the odometer. The Service DEF System came on and after talking with the local dealership, the DEF sensor and or DEF pump has failed due to the DEF freezing. They have explained that this is a know issue and has affected the 2019 to present model year. After doing extensive research on neumorous blogs, it is a much larger problem than the dealer is letting on. It appears to be created by a design change that took place in 2019 and is caused by the DEF fluid itself freezing in the tank damaging the DEF sensor. DEF freezes at -12 so those of us living in areas where it may hit -12 are all affected by this situation and in reality, have spend 60k plus on a vehicle that we cannot operate. Either the DEF needs to be redesigned to not freeze or Ram needs to redesign, or go back to what they had that worked, the DEF system. This is not only an emmisions issue it is also a saftey issue. If the DEF system does not work, the vehicle does not meet the current emmisions standards. If the vehicle goes into limp in mode, you have strandad customers along side the road becomming a safety hazard and if the limp in mode happens at highway speeds, who knows the effectis on the vehicle as it slows down and creats a hazzard on the highway. Please work with RAM to remedy this situation so those of us with a 61k + boat anchor can use their trucks as they intended to when they spent their hard earned money to do so.

- Bismarck, ND, USA