2021 Ram 1500 engine problems

Filed Oct 29, 2026 · Engine · WI

The engine oil pan severely corroded and over 30% of the 18 gauge steel scaled away. For an 18-gauge steel oil pan (nominal thickness of 0.0478 inches or 1.2 mm), the threshold where rust becomes hazardous is remarkably thin—literally and figuratively. Because an oil pan holds hot, chemically active fluid and is subjected to constant vibration and thermal cycling, the margin for corrosion safety is very small: 1. The Pinhole and Leak Threshold (25% to 30% Loss) * The Limit: If deep rust pitting or scaling eats away more than 0.012 to 0.015 inches (roughly 25% to 30% of the wall thickness), the metal is no longer structurally sound enough to contain the oil under thermal expansion and vibration. * The Hazard: At this stage, microscopic or sudden pinhole leaks will form. Even a slow weep can drain enough oil over time to starve the engine, or worse, spray atomized oil onto a hot exhaust pipe, creating a severe fire hazard.

Filed Sep 8, 2026 · Engine · WV

I own a 2021 Ram 1500 with the 3.0L EcoDiesel Gen 3 engine. The vehicle has experienced diagnostic trouble code P00AF, indicating a turbocharger/variable geometry turbocharger (VGT) boost-control performance problem. I have already taken the vehicle to a Ram dealership for this same issue. The dealership performed a computer/software update in an attempt to correct the problem, but the P00AF issue continued afterward. I returned to the dealership and was told they could not reproduce the problem during their test drive and therefore could not repair it. The problem remains unresolved. I am concerned this may involve a premature failure or defect involving the turbocharger, electronic VGT actuator, or VGT control mechanism on the Gen 3 EcoDiesel. This is particularly concerning because I use the vehicle to tow an approximately 8,000-pound travel trailer. A turbocharger/VGT failure while towing could cause sudden loss of engine power, particularly under heavy load or while climbing grades, potentially creating a dangerous situation in traffic. The intermittent nature of the problem makes it difficult for the dealership to reproduce, but the fault continues to occur during actual vehicle operation. A software update has already been attempted without resolving the issue. I request that the federal safety agency investigate whether there is a pattern of premature turbocharger/VGT actuator or VGT mechanism failures resulting in P00AF on 2020–2023 Ram 1500 3.0L EcoDiesel Gen 3 vehicles. I can provide dealership repair documentation, diagnostic information, photographs, mileage, and other supporting information if requested.

Filed Aug 31, 2026 · Engine, Fuel system · CA

This vehicle was subject to the federal safety agency Recall 22V‑767 / Stellantis Recall Z96 for a defective Bosch CP4.2 high-pressure fuel pump (HPFP) known to fail and release metal debris into the fuel system. The recall remedy (HPFP replacement) was performed at an authorized Stellantis/Ram dealership on 3/29/2024. On 8/9/2026, while driving the vehicle suddenly lost engine power and blocked the road in the left lane. The vehicle failed to restart and needed to be towed. The vehicle was independently inspected at Saddleback Automotive Service Center, Santa Ana, CA (RO# 130026). The technician documented diagnostic trouble codes P0087 (fuel pressure governor deviation, low pressure), P025C (fuel pump module control circuit low), and P016F (closed-loop fuel pressure control at limit, pressure too low) — all consistent with the same CP4.2 HPFP failure mode the recall was intended to remedy. Photographic and video documentation confirms metallic contamination in the engine oil and fuel filter screen. This failure occurred more than two years after the recall repair, and Stellantis (Case #97888077) has denied consequential-damage coverage citing the standard 24-month Mopar parts warranty on the replaced pump. I am filing this complaint because the recall remedy performed in March 2024 appears to have been inadequate: the vehicle experienced a recurrence of the same fault codes associated with the recalled component, and the resulting metal contamination caused catastrophic engine damage. I believe this indicates the recall remedy did not fully address the underlying defect and that other vehicles that received the same recall remedy may be at risk of the same outcome. I am requesting that the federal safety agency investigate whether the 22V‑767/Z96 recall remedy is adequately preventing this failure mode in vehicles that received the HPFP replacement, and that this complaint be associated with any existing investigation into recurring CP4.2-related failures post-remedy.

Filed Aug 27, 2026 · Airbags, Engine · DE

Air bag light on. Needed temp start

Filed Aug 24, 2026 · Engine, Transmission · PA

The contact owns a 2021 Ram 1500. The contact stated that while driving at an undisclosed speed, the "Service Electronic Steering Control", "Service Transmission", and the "Continue to Drive - Do not Shift or Turn off Engine" messages were displayed on the instrument panel, before the vehicle stalled. Additionally, the message "Shift to Park and Back to Drive", "Rear Braking Assist Unavailable", and "Self-Park Assist Disabled" messages were displayed on the instrument panel. The failure had occurred on several occasions. The contact stated that the vehicle was previously serviced under an unknown recall associated to the failure. The vehicle was taken to the dealer to be diagnosed; however, the cause of the failure was unknown. The dealer stated that the failure might be electrical. The vehicle was not repaired. The vehicle was towed back to the dealer; however, the vehicle was not yet diagnosed or repaired. The manufacturer was not notified of the failure. The failure mileage was unknown.

Filed Jul 28, 2026 · Electrical, Engine · CA

Recently this vehicle has triggered a check engine light. Upon further examination the code was related to an ignition #3. (CODES: P020C, PO1DO).

Filed Jul 23, 2026 · Engine, Transmission · NY

MGU unit failed / car seized in the middle of the road - sent in to be repaired Unsafe to be stuck in the middle of the road, could not even put the car in neutral to push out of the road Known problem that RAM and Stellantis know about and are not placing warnings. We were told by the dealership we were 5,000 in line for a new part and that it would take a year. No warnings, truck ran perfectly before

Filed Jun 29, 2026 · Engine, Transmission · MA

On 6/9/2010 I was accelerating up a ramp to merge with traffic on Rt146 north . I had reached the top of the ramp and as I viewed the oncoming traffic behind in the mirror I began to shift into the right lane. Suddenly the engine light started flashing, my truck immediately lost power and slowed to 40mph. The truck that had been well behind me was suddenly swerving to avoid my truck . I nearly got rear ended by a truck which would have probably killed my daughter and I.We both were in shock , I pulled over as soon as I could .Does someone need to be killed before action is taken. Safety should prevent incidents like this . Hindsight is no good. I think my kids are precious but Dodge must think their lives are cheap . That was something the engine manufacturer should be held accountable for. The rocker arms and lifters suddenly stopped working in two cylinders because of a fault in those engines known to Dodge. The dealership diagnosed the issue and gave me a quote of $4500-$6000 to repair the extensive damage from that incident. The lady in the service department said I was a victim of the well known Pentastar Tick .I can’t afford it. To add insult they offered me $6000 to buy it. No local independent mechanic wants to tear the engine apart . So my truck is sitting in our driveway. I am paying a loan and upside down in it. I can’t fix it and I can’t sell it. I have made every payment. I am certain there are other dodge customers who have been in close calls or worse over their vehicle suddenly losing power . Isn’t this the perfect example of dangerous . I think so.

Filed Jun 28, 2026 · Engine · MI

Loud winning sounds in engine, louder during excelleration. Dealer service center found the eTorque to be bad and i was told not to drive it. And there is no fix or parts for it. Not sure when or if they will get the parts. No recall no part no fix!!

Filed Jun 10, 2026 · Engine · PA

I purchased a 2021 Ram 1500 North Edition (VIN: [XXX]) on XXX. As of last week, I noticed fluid leaking from under the engine compartment of the truck. I crawled under the truck and found that this five-year old truck has an oil pan that has rusted and rotted on the bottom and side leading to a leak of motor oil. I searched this online and found that this is a common issue amongst this model in this time frame and that it can cause a "catastrophic" loss of oil pressue while driving. I checked recalls and technical service bulletins and found no mention of this issue. Upon speaking with the service department of Hume's Chrysler, Jeep Dodge, and Ram of Waterford, PA, I was informed that they have seen this issue and that it is not covered by any warranty or recall because it's always caused by rust. This was only noticed because my wife's vehicle is in the shop and I parked in the garage causing me to notice it on the garage floor. My truck is normally parked in our gravel driveway and the oil leak went unnoticed. The truck was down approximately one-quart of oil when this was noticed. Had this not been noticed when it was, I fear that this issue could have caused an incident on the highway while the engine oil pressure was increased. INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)