2016 Ram 1500: fuel pump failure

Filed Nov 3, 2026 · Fuel system · 168,000 miles · IL

The contact owns a 2016 Ram 1500. The contact stated that while driving 50 MPH, several warning lights illuminated and the vehicle lost motive power. The contact stated that while attempting to start the vehicle, the vehicle failed to start. The vehicle was towed to an independent mechanic where it was diagnosed with high-pressure fuel pump failure. The contact was informed that the fuel system was contaminated with metal shavings. The contact was informed that the high-pressure fuel pump needed to be replaced. The contact stated that the vehicle was previously repaired under the federal safety agency Campaign Number: 22V406000 (Fuel System, Diesel) in May 2024. The dealer was contacted and made aware of the failure. The manufacturer was contacted, and a case was filed. In addition, the contact stated that several cases were filed. The contact was advised to contact the dealer for assistance. The failure mileage was approximately 168,000.

Filed Oct 7, 2026 · Fuel system · ID

Component or System Failed & Availability for Inspection: High-pressure fuel pump and common rail fuel injection system under the federal safety agency Recall 22V‑406 (Recall Z46). The vehicle and all removed/affected components are grounded and available for inspection at Peterson CDJR in Boise, ID under Repair Order #46751. Safety Risk: Risk of sudden loss of motive power and engine stall while driving, creating collision hazards as defined under the federal safety agency Recall 22V‑406. Chronological Timeline & Dealer Findings: July 5, 2024: Peterson CDJR performed Safety Recall Z46 (the federal safety agency 22V‑406) Procedure A, replacing only the high-pressure fuel pump. September 2026 (RO #45520): Vehicle presented with an illuminated check engine light. Peterson CDJR diagnosed a faulty fuel pressure sensor and replaced the fuel rail and sensor for $2,809.45. September 2026 (RO #46751): Following a 55-mile test drive, Peterson CDJR technician verified the diesel fuel from the fuel tank tested completely clean. Inspection of the newly installed fuel rail sensor documented internal metallic debris actively circulating through the fuel system. September–October 2026: Peterson CDJR opened STAR Case #102997574. DealerCONNECT records and the technician notes from RO #45520 state that the entire fuel system requires replacement. Dealer requested authorization for Recall Z46 Procedure B (complete fuel system replacement kit ⁠CSSMZ46DAA⁠). October 5, 2026: Stellantis corporate documented via DealerCONNECT that the fuel system requires replacement, but stated they will not authorize the repair under warranty because the recall was previously closed. Inspections by Manufacturer / Others: Inspected by Peterson CDJR certified technicians and documented in STAR Case #102997574. Reviewed via DealerCONNECT by Stellantis corporate, who confirmed fuel system failure but refused remedy coverage under open Corporate Case #98257662. I have not had followup from my Stellantis case manager. Dealer is responsive.

Filed May 22, 2026 · Acceleration · TX

The ABS Module in my truck went out also causing no speedometer readings. The dealership at Dodge confirmed it needs to be replaced as well as a failing fuel pump. They have had my truck since April 7th 2026. Today as of writing is May 22nd. They keep moving my estimated date for part arrival constantly. Two months and I am still out of my vehicle. Being handicapped and my wheelchair lift is attached to the truck that I need to be able to use to goto my doctor's visits and appointments. They keep stonewalling me and now they said they ordered it from another source but getting the same information but want me to pay the difference from the warranty willingness to pay. Just a total nightmare here.

Filed May 13, 2026 · Fuel system · IN

I am writing to report a Failed Recall Remedy under 49 U.S. Code § 30120 regarding the Z46 high-pressure fuel pump safety recall on my vehicle. The dealership accepted the vehicle in its current state, performed the safety recall, and certified the vehicle as safe. However, the engine suffered a catastrophic failure 250 miles later due to the exact system addressed in the recall. I was previously told that nothing could be done, which is unacceptable as federal law requires a safety defect to be remedied at no cost. The dealership did not follow the recall instructions and just put a new hpfp in a contaminated fuel system.

Filed Apr 27, 2026 · Engine, Fuel system · CA

I own a 2016 Ram 1500 EcoDiesel, VIN [XXX] . The vehicle has been in and out of Rydell Jeep & Ram dealership over 3 times in the last few months for fuel pump issues. It has been at the dealership for over a month total (in and out). Each time I have had to pay for towing and rental cars. I have not been reimbursed for any rental or towing costs. On April 11, 2026, immediately after picking up the truck from the dealership (where it had just been serviced for a previous fuel pump issue), the vehicle suddenly lost all power while I was driving on the freeway and would not restart. It was towed back to Rydell. On April 23, 2026 at 9:30 AM, Bruce (service advisor) and Mike (mechanic) at Rydell verbally admitted to me that their original diagnosis was wrong. They had initially said a gear inside the engine that turns the CP4 fuel pump had come loose or failed. They now admit that diagnosis was incorrect, but they refuse to provide that admission in writing. They are now trying to charge me for the repair. I believe the actual root cause is that the CP4 high-pressure fuel pump seized internally. That seizure would have placed extreme resistance on the engine's drive gear for the pump, causing the gear or its retaining bolt to fail as a secondary consequence. The pump seizure is a known safety defect in these EcoDiesel vehicles. Because the dealership has admitted the original diagnosis was wrong, and because this failure happened immediately after fuel pump-related service, I am requesting that the federal safety agency investigate this as a safety defect. The sudden loss of power at highway speeds is extremely dangerous. I also request that any existing recall or investigation (such as the federal safety agency Campaign 22V406000 a INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)

Filed Apr 26, 2026 · Engine, Fuel system · 161,097 miles · CA

The vehicle turned off on the freeway and qould lnt start right after it came out from the dealership for a fuel pump cp4 installation recall, they said they misdiagnosed the issue with the truck on 4/23/26 930am from Bruce service advisor and mike the mechanic at rydell with my fuel pump off the truck. They said the gear that turns the fuel pump may have come loose That gear that turns the fuel pump does not turn, they showrd me. Also im thinking that the fuel pump seized and caused this issue. Why would the inner gear not work after yhis situatio

Filed Jan 30, 2026 · Fuel system · FL

I recently purchased this 2016 RAM 1500 from a family member. I was driving at highway speeds between 60-80 MPH in heavy rush hour traffic. The vehicle suddenly lost power & died at highway speeds. I was in the middle lane & almost crashed to the vehicle to my left & from behind as I intended to swerve to the median. Upon calling the dodge dealer from the side of the road, they confirmed that they had no available appointments to diagnose the issue for days, I had no control of the situation as i was stranded on the side of the road and needed to get the vehicle fixed, upon tow the the nearest diesel repair shop, it was diagnosed as a high pressure fuel pump and fixed at and out of pocket cost of $792.13. I was not aware this vehicle had an open recall (z46) as i just purchased it. Upon calling the dealer they informed the truck had a open recall, suggested I contact Mopar for reimbursement per there guidance. They directed me to the website. The claim was denied due to the fact that the work was not done at a certified RAM shop. I explained the circumstances to the case manager via email correspondence as this is the ONLY way they contact you to no outcome and a denial. . I was finally able to get an appointment with ram where the recall was fully addressed on there side. Mopar still refuses to cover the out of pocket expense even after I took it the dealership to get the recall done the way they requested it to be done.

Filed Aug 28, 2025 · Engine, Fuel system · FL

I own a 2016 Ram 1500 EcoDiesel (VIN: [XXX] ). This vehicle is covered under the EcoDiesel Approved Emissions Modification (AEM) Settlement extended warranty. Since the update in January 2025, the truck has suffered repeated EGR system failures and related warranty failures. The EcoDiesel lawsuit itself was based on EGR cooler defects that could leak coolant and cause fires. My truck has experienced the same failure pattern, with coolant leaks, overheating, and unsafe breakdowns. On [XXX], the vehicle shut off in the middle of the road while I was driving, creating a serious hazard. The cause was traced to a covered emissions component. This was not an isolated incident. The vehicle has been in dealerships for over 60 cumulative days since January 2025, mostly for repeated EGR codes and fuel system issues, but the root problem has never been properly repaired. On [XXX], the low-pressure fuel pump failed after it had already been replaced. The premature failure left me stranded and required a $500 tow. This failure also presented a risk of sudden power loss in traffic. Despite repeated visits to authorized dealers, repairs are incomplete or improperly billed, including installation of non-OEM parts that failed again. The repeated stalling, coolant leaks, overheating, and sudden no-start conditions show that this truck remains unsafe to operate on public roads. I am reporting this as a safety defect because the emissions system failures and improper repairs have caused the vehicle to shut off while driving and continue to present a risk of fire, engine damage, and sudden loss of power. INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)

Filed Jul 21, 2025 · Fuel system · IN

Fuel level sensor failed. Truck will randomly display false fuel levels. This causes the fuel level to be unknown leading the potential of running out gas and being stranded. Dealer says fuel pump needs replaced and is in the process of doing so. Dealer also stated this is a common issue on the Ram trucks.

Filed Jul 11, 2025 · Fuel system · VA

I presently have 92,200 miles on my Doge Ram. I have experienced 3 fuel pump/fuel sender failures. The first at 18,947 miles, second at 43,634 miles and third at 92,263.This last fuel pump replacement will have the defective pump available for inspection after the repair work is done. The failure of a fuel pump/sender could lead to stalling, power loss and failure to start. These deficiencies could lead to traffic accidents resulting in property loss and bodily harm or even death. The warnings persisted until I had the parts replaced. Because of the number of times (3)and the low mileage , 18k,43k and 92k miles, it appears that the fuel pumps used in this model of Dodge Ram are either defective or inadequately engineered. These failures were preceded by and check engine warning light followed by a fuel sensor failure light and fuel gauge malfunction.

Filed Feb 25, 2025 · Engine, Fuel system · 168,000 miles · ID

The contact owns a 2016 Ram 1500. The contact received notifications of the federal safety agency Campaign Numbers: 22V406000 (FUEL SYSTEM, DIESEL) and 23V411000 (ENGINE AND ENGINE COOLING); however, the parts to do the recall repairs were not yet available. The contact stated that the manufacturer had exceeded a reasonable amount of time for the recall repair. The dealer was made aware of the issue. The manufacturer was not made aware of the issue. The contact stated that while driving 5MPH, the vehicle started to stall, then jerked back and forth before eventually shutting off. The fuel control sensor warning light was illuminated. The vehicle was towed to the dealer where it was diagnosed with high-pressure fuel pump failure. The vehicle was in the process of being repaired; however, the dealer informed the contact that the parts were on backorder. The failure mileage was approximately 168,000. Parts distribution disconnect.

Filed Feb 13, 2025 · Fuel system · VT

Issue with the relay controlling the fuel pump located in the fuel tank(lift pump) When the relay stop working, the engine cannot be started or don't supply fuel to the High pressure fuel pump (HPFP) forcing to stop on the road. Could lead seriously to an unsafe situation like the HPFP can do. This issue can be reproduce easily by the dealer. No DTC or check engine ON for this type of issue. The dealer fix it yesterday and the damage was under the TIPM (Total integrated Power Module) The wires connectors under the relay were melted by overheat. This issue lead to an OFF and ON electrical contact between the fuel pump and the relay. This issue is largely documented over internet and can be fix for under 200$ usd with an external relay. But the first FCA option is to replace the TIPM board for 1200$ usd. Actually no recall for this major issue present in many FCA models since many years. The first time this issue happend was december 20, 2024. The date of repair is february, 12 2025. Between those two dates, I got the crank nostart problem many times.