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Ram 3500 fuel pump problems

51 of the 2,369 owner complaints about the Ram 3500 describe fuel pump failure, most of them for the 2020 model year.

owner complaints
51
worst model year
2020
typical mileage
38,000
Is there a fix? There are 3 recalls for this area of the car. See below

By model year

  • 2025
    1
  • 2022
    1
  • 2021
    4
  • 2020
    23
  • 2019
    13
  • 2018
    4
  • 2017
    3
  • 2015
    1
  • 2014
    1

What owners say

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 Jun 15, 2026 · Fuel system · WA

Had recall for high pressure fuel pump completed in 12/2022 and the new part has prematurely failed causing debris to go into the fuel system. The new part was to prevent this issue from happening and it seems that failure after only 3 years means that a defective part was installed or some form of improper installation occurred.

Filed May 6, 2026 · Fuel system · 77,000 miles · VT

The contact owns a 2021 RAM 3500. The contact stated that while driving at 40 mph, the vehicle stalled and could not be restarted. The vehicle was towed to a dealer, where it was diagnosed that the entire fuel system needed to be replaced due to the high-pressure fuel pump exploding after metal shavings were found throughout the entire system. The vehicle was not repaired. The manufacturer was notified of the failure. The failure mileage was 77,000.

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 Aug 25, 2025 · Driver assistance, Electrical · MA

Ton of warning lights can on like abs, traction control and some other sensors. When put in Drive the D flashed and try k would not move. Put back in park would not recognize it was in park and would not shut off. The only way to shut off the truck with disconnect both batteries and pull the fuse for the fuel pump.

Filed Mar 8, 2024 · Electrical, Fuel system · GA · fire

All of my fuse are lose, also the dealership installed a new high pressure fuel pump under recall and now it’s whining and now my pcm is over charging my batteries!!!

Filed Feb 2, 2024 · Fuel system · OH

High pressure fuel pump went out. I know they had a recall on this before. Truck is down and it will cost to much to replace fuel system

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.

Related recalls

Fuel system, diesel: delivery: fuel pumpReported November 12, 2021 · 222,410 vehicles affected
What is wrong
Chrysler (FCA US, LLC) is recalling certain 2019-2020 Ram 2500, 3500 pickup trucks, and Ram 3500, 4500, and 5500 cab chassis vehicles equipped with Cummins 6.7L Turbo Diesel engines. The High Pressure Fuel Pump (HPFP) may fail, resulting in a sudden engine stall without warning.
Risk
An engine stall increases the risk of a crash.
Remedy
Dealers will replace the HPFP, update the Powertrain Control Module (PCM) software, and inspect and replace additional fuel system components as necessary, free of charge. Interim owner notification letters to inform owners of the safety recall were mailed on January 4, 2022. Owner notification letters were mailed on May 17, 2022. Phase 2 owner notification letters are expected to be mailed on March 2, 2023. Owners may contact FCA US, LLC customer service at 1‑800‑853‑1403. FCA US, LLC's number for this recall is Y78.

Recall number 21V880000 · Recall details

Fuel system, dieselReported June 27, 2019 · 499 vehicles affected
What is wrong
Chrysler (FCA US LLC) is recalling certain 2019 Ram 2500 and 3500 trucks, and 3500, 4500, and 5500 Cab Chassis vehicles equipped with diesel engines. The fuel lines may leak fuel into the engine compartment.
Risk
A fuel leak in the presence of an ignition source increases the risk of a fire.
Remedy
Chrysler will notify owners, and dealers will inspect the fuel lines, replacing them if necessary, free of charge. The recall began July 18, 2019. Owners may contact Chrysler customer service at 1‑800‑853‑1403. Chrysler's number for this recall is V76.

Recall number 19V498000 · Recall details

Fuel system, dieselReported October 8, 2014 · 315,325 vehicles affected
What is wrong
Chrysler Group LLC (Chrysler) is recalling certain model year 2010-2014 Ram 2500, 3500, 4500, and 5500 trucks manufactured March 27, 2009, to September 5, 2013. In the affected vehicles, the electrical connectors of the diesel fuel heater may overheat.
Risk
If the connectors overheat, the fuel heater may leak fuel, increasing the risk of a fire.
Remedy
Chrysler will notify owners, and dealers will replace the harness side connector with a silver plated beryllium copper terminal service kit, and inspect the fuel heater for leaks, replacing it as necessary, free of charge. Chrysler issued interim notification to owners on December 8, 2014. The recall began on April 27, 2015. Owners may contact Chrysler customer service at 1‑800‑853‑1403. Chrysler's number for this recall is P65.

Recall number 14V635000 · Recall details

Questions about the Ram 3500 fuel pump

Which Ram 3500 years have fuel pump failure problems?

The model years with the most reports are 2020 (23 complaints), 2019 (13 complaints) and 2018 (4 complaints).

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