2020 Ram 3500: fuel pump failure

Filed Sep 10, 2026 · Fuel system · TX

High pressure fuel pump recall failed and put my life in danger ⚠️ Terrible experience not only for me but it put in danger a Semi truck driver and others almost got killed

Filed Aug 27, 2026 · Engine, Fuel system · 300,000 miles · TX

The contact owns a 2020 Ram 3500. The contact stated that while driving at 65 MPH, the vehicle suddenly experienced reduced speed and hesitation, and there was a rattling noise coming from the engine as the RPMs increased above 1,500. The vehicle was driven slowly to a local dealer, where the contact was informed that the high-pressure fuel pump (HPFP) had likely failed. The exact cause of the failure had not yet been determined, and the vehicle was not repaired. The contact stated that the vehicle was previously serviced under the federal safety agency Campaign Number: 21V880000 (Fuel System, Diesel) and was experiencing the same failure listed in the recall. The failure mileage was 300,000.

Filed Sep 9, 2025 · Fuel system · 38,000 miles · TX

The contact owns a 2020 Ram 3500. The contact stated that while driving at various speeds, the vehicle made an abnormal ticking sound. The vehicle was taken to the dealer, where it was diagnosed with high-pressure fuel pump failure, but the vehicle was not repaired at the time. The contact stated that upon pulling into a parking lot, the vehicle stalled. The vehicle failed to restart and was towed to the dealer, where it was diagnosed and determined that the high-pressure fuel pump had imploded, causing damage to the fuel system. The dealer related the failure to the federal safety agency Campaign Number: 21V880000 (Fuel System, Diesel), and the vehicle was repaired; however, the contact later became aware that the dealer had replaced the high-pressure fuel pump with the same part. The contact stated that upon taking the vehicle to an independent mechanic to be serviced, the mechanic informed the contact that the high-pressure fuel pump installed on the vehicle was not the recall part, but the same defective part. The mechanic recorded the high-pressure fuel pump and part number, and the vehicle was taken back to the dealer, where it was confirmed that the recall part had not been installed on the vehicle. The manufacturer was notified of the failure and referred the contact to the dealer for assistance. The contact stated that the dealer delayed performing the recall repair free of charge, which required the contact to pay for the replacement of the high-pressure fuel pump with the correct part. The vehicle was repaired. The contact stated that the manufacturer failed to complete the recall repair free of charge. The failure mileage was approximately 38,000.

Filed Jun 29, 2023 · Fuel system · FL

My check engine light went on, along with the DEF warning, early June 13th,2023. The DEF warning stated I had 150 miles to get the Track to a Dealer. After Dealer evaluation, I was told the truck had DEF contamination, from ,Diesel Fuel. I asked how this could happen? I was not given an explanation. To me this is a DEF Pump failure. The DEF Pump did not have enough PSI to inject DEF into the Diesel Fuel, so the Diesel Fuel back flowed into the DEF system. Additional facts, my Truck warranty expired 5/15/2023. My truck has less than 36,000 miles. I had the High Pressure Fuel pump, Recalled fixed in May 2023. I was told this repair did not lead to this issue. The Repair bill is over $3700 for this repair.

Filed Jun 23, 2023 · Engine, Fuel system · ID

My high pressure fuel pump went out while I was towing the 43 ft enclosed trailer causing the engine to shut down. I was able to get it home and onto a car hauling trailer took it to a dealership and confirmed the high pressure fuel pump was the culprit they informed me that they would not perform the safety recall because of a modification to the vehicle which has no bearing on the safety issues at hand I contacted FCA they encouraged me to take it to a different dealership which I did. I had to pay a tow truck to haul it to another dealership in which they told me they would do the recall however when they put my VIN number in their system my pickup had been blacklisted by the parent company Chrysler saying do not work on this vehicle for safety recalls. I at this point got quotes to have it done and it was extremely expensive to friend advised me to look into the law so I contacted a lawyer and they told me to file a complaint with the federal safety agency.

Filed May 26, 2022 · Fuel system · 5,900 miles · OK

The contact owns a 2020 Ram 3500. The contact received notification of the federal safety agency Campaign Number: 21V880000 (Fuel System, Diesel) however, the part to do the recall repair was unavailable. The local dealer was contacted and it was confirmed that the part was not available. The contact stated that the manufacturer had exceeded a reasonable amount of time for the recall repair. The manufacturer was not made aware of the issue. The contact stated that the vehicle experienced hard starting and a loss of power while driving at various speeds. The vehicle was taken to the local dealer who diagnosed that the high-pressure fuel pump had failed and needed to be replaced; however, the part was not yet available. The failure mileage was 5,900. Parts distribution disconnect.

Filed Jan 11, 2022 · Electrical, Engine · 213,000 miles · AR · fire

The contact owns a 2020 RAM 3500. The contact stated that while driving at 15 MPH, the oil warning light was illuminated, and the vehicle made abnormal sounds. Additionally, there was smoke coming from under the hood of the vehicle. The contact pulled over and refilled the oil reservoir; however, the failure recurred with oil leaking from the vehicle. The vehicle was towed to the dealer and diagnosed with engine damage and connecting rod failure, which punctured the engine block. The engine needed to be replaced. The vehicle was not repaired and remained at the dealer. The manufacturer was not made aware of the failure. Upon investigation, the contact related the failure to the federal safety agency Campaign Number: 20V511000 (Engine and Engine Cooling, Electrical System) however, the VIN was not included in the recall. The failure mileage was approximately 213,000. The oil light did not come on until after the engine had started knocking rapidly. The engine oil also ran out quickly as well. Consumer immediately refilled the oil and drove for 5 minutes and the engine stopped knocking for a few seconds before there was louder knocking, smoke and spewing oil. Consumer had previously reported to the customer care FCA group 2 times last August about metal shavings on the fuel filter. The fuel pump continued to produce metal shavings in the filter every time the filter was change.

Filed Nov 14, 2021 · Fuel system · NV · crash

As I was preparing to travel for the holidays comíng up, I was traveling to Texas to see family. I was driving around 65 mph when suddenly the truck started jerking and slowing down when the gas pedal would not give it power. The car behind slammed the brakes and in order to avoid hitting me had to went the the side of the highway. Before coming to a complete stop the truck a 2020 ram 3500 shut off and will not come off. The tow truck was able to scan the truck and the codes are for low fuel pressure and fuel pump. This was a very scary situation because I’m with all my family and not only did I put them in danger by this truck failing with out a notice of any kind but also put others like the vehicle behind in danger because the truck failed. I have look up and this seems to be a common issue with all the “new ram trucks” not sure why there is no recall yet. Hoping this gets looked at and something can be done for the safety of others

Filed Oct 27, 2021 · Fuel system · 25,700 miles · OR

The contact owns a 2020 Ram 3500. The contact stated while hauling his fifth-wheel travel trailer driving up a hill the vehicle lost all power. The contact stated he had to maneuver over several lanes of traffic to move off the road safely. The police department was contacted and had the vehicle towed. The tow truck driver had to unhitch the trailer from the contact's vehicle to tow the truck to a dealer. The vehicle was towed to the dealer and diagnosed with a fuel sensor failure. The fuel sensor was replaced. The vehicle failed to start and was diagnosed with a fuel injection pump failure which had imploded sending metal fragments throughout the whole fuel system and into the fuel tank. The entire fuel system including the fuel tank and all fuel parts needed to be replaced. The contact stated that the dealer informed him of a notice that was sent to the dealer by the manufacturer of a fuel pump failure. The contact stated that he researched the failure online and found the federal safety agency Action Number: PE21021 (Fuel System, Diesel). The manufacturer was made aware of the failure and a case was opened. The failure mileage was 25,700. Replacement parts are same defective CP 4 injector pump that already failed and now metal shavings are contaminating fuel system leading to another implosion and possible accident or death FCA has no fix available making truck unsafe to operate. STELLANTIS, FCA and STAR are well aware of this CP 4 safety issue in 2019 and 2020 trucks.

Filed Oct 26, 2021 · Fuel system · MO

I was driving my truck towing a fifth wheel trailer weighing over 10,000 pounds on a rural state highway in Missouri with many hills, curves, and little to no shoulders. As I was traveling on a downhill slope at approximately 60mph my engine abruptly died with no warning, causing an immediate loss of power steering, power brakes, and engine brake. I began applying heavy pressure to the brakes slowing the vehicle and began looking for a side road to pull into. I came upon a driveway with an open gate into a field. With much manual force to the steering wheel and brakes I was able to guide the truck and trailer off of the highway into the field to a stop. I was fortunate to not have anyone stopping in front of me as I am certain I would not have been able to avoid a crash with the heavy load and no power. The vehicle was towed to a local Ram dealer and metal shavings were discovered in my fuel system. Repairs were made under warranty and after 6 weeks my truck was returned to me with a new fuel system including a new Cp4 fuel pump that had failed. This happened on 08/28/2020 and the truck had 8900 miles at the time. On 09/15/2021 I discovered metal shavings in my rear fuel filter while doing routine maintenance The truck was running appropriately with no codes or warning lights, it had 72000 miles at the time. I telephoned a local Ram dealer shop and was told it would have to be diagnosed at their shop. Unwilling to take the chance with another Cp4 pump failing I contacted a local diesel shop and was advised to replace the Cp4 with a Cp3 pump. I purchased a new Bosch Cp3 fuel pump specifically modified for replacement of Cp4 pumps in Ram trucks and paid the local shop myself to do the work. I still have my second Cp4 pump in my possession.

Filed Oct 22, 2021 · Engine, Fuel system · OR

I was towing a light trailer (4000 lbs) on I-5 in Oregon on 10/22 when I slowed from ~58 mph to about 45 mph to allow a hasty SUV to merge from the right. When I tried to resume speed the truck seemed "stuck" at 45mph for quite some time. I gave it full throttle and it didn't accelerate. I tapped the brakes, turned off cruise control and it felt like there was no power at all, like it was freewheeling. Finally the motor 'caught' and it accelerated to highway speed. I looked for the problem online and believe this may be related to the CP4 fuel pump issues. Is it safe to continue driving or should I take the truck to a dealer or what? There is no recall yet and I hear the dealership people are telling owners that it is from bad fuel and not covering it! I only have 12128 miles on the truck, please advise!

Filed Oct 21, 2021 · Acceleration, Fuel system · AZ

At 28,000 miles my vehicle in the middle of the Highway going up a hill stall and suddenly lose boost or was inoperable to safety get out of the road. i was able to do a unsafe maneuvering to get out of the way with the momentum of speed that i have at the moment When this happened a message on my screen said power boost service require,contact your dealer. Later and after the poor customer service in moreno valley ca. And yuma az my local dealer provide., i found out that my fuel pump(cp4) went down,completely destroyed on the inside sending metal particles trough the entire fuel system. 93,000 and again my vehicle went out of service exactly for the same reason(cp4) And now at 135,000 miles my vehicle is down again the reason is idle pulley broke and my serpentine belt got damage at the same time serpentine belt damage my crank sensor and i found out today that is on back order until the 3th week of november I have all documents in order to support the complaints im here to submit today