2021 Ram 1500 Classic engine problems

“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.”

“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…”

“This vehicle was subject to NHTSA 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…”

“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.”

“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”

“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…”