2022 Ram 3500 Engine Problems

Your 2022 Ram 3500 was manufactured without a Particulate Matter sensor, which has caused your Diesel Particulate Filter to become permanently blocked. The manufacturer has offered to install the missing sensor as part of a recall, but is refusing to replace the blocked filter itself. Your vehicle is currently showing a "Filter Full - Power Reduced" message and may stall or lose power while driving on highways, creating a safety risk.

Your engine's #4 cam bearing seized to the camshaft, and the #4 main bearing was damaged by metal chips that weren't removed during manufacturing. This manufacturing defect caused damage to your engine block that couldn't be repaired, so the engine block and related internal components had to be replaced with a new short block assembly.

Your engine's valvetrain is experiencing an issue. The exact nature of the problem isn't fully detailed, but valvetrain problems can affect engine performance and reliability. A mechanic will need to inspect your valve components, timing, and related systems to diagnose and repair the issue.

Your truck's exhaust regeneration system has been malfunctioning for 6 months, and despite three dealer visits and replacement of the diesel particulate filter, the problem persists. The dealer has told you the system cannot be repaired and RAM won't provide support to fix it. This issue is affecting engine performance and exhaust system durability across multiple 2022 Ram 3500 trucks. Fixing this may require complete exhaust system diagnostics, possible replacement of the diesel particulate filter, exhaust gas recirculation (EGR) valve inspection, or other emissions system components.

Your engine is making an abnormal rattling sound while driving at low speeds, and your engine warning light is on. A dealer found that the grid heater bolt melted and fell into your engine, requiring the piston to be replaced. This happened at 35,000 miles, and the repair involved removing the damaged piston and installing a new one.

Your truck hesitates or struggles to accelerate when you press the gas pedal at various speeds, and your check engine light turns on. You've taken it to the dealer about eight times for repairs, but the problem keeps coming back even after warranty work. The dealer hasn't been able to pinpoint what's causing it. Getting to the root cause will likely involve diagnostic scanning and possibly replacing fuel injectors, spark plugs, or fuel system components.

Your engine is experiencing a lifter tick — a clicking or tapping noise from the valve train area. This is a known issue affecting 2019-2024 Ram 6.7L engines where lifters can fail prematurely, causing excessive wear to the valve train components. This requires professional engine service to diagnose and repair the failed lifters.

The contact owns a 2022 Ram 3500. The contact stated while driving 40-45 MPH and hauling a 14-ft loaded trailer, the engine made an abnormally loud knocking sound. The check engine warning light was illuminated. The contact was able to pull over to the side of the road. The vehicle failed to restart and was towed to the residence, where a mobile independent mechanic diagnosed that the grid heater nut had melted and entered cylinder #6. The vehicle was then towed to the dealer, where it was diagnosed that the grid heater nut failure had caused catastrophic failure of the pistons, turbo charger, and engine. The dealer determined that the engine assembly needed to be replaced. The vehicle was not repaired. The manufacturer was notified of the failure and informed the contact that the repair could not be covered under warranty due to the mileage on the vehicle. The failure mileage was approximately 112,700.

Driving on highway 02/24/2025 approximately 07:15 pm EST at 65 mph, vehicle began Diesel DPF automatic regeneration cycle. Strong smell of "burning trash" and fuel vapor entered cabin with windows up. this happens frequently

Emission system failure. Code P2459 Regeneration Frequency. Overheating of the DPF while stuck in regen cycle causes burning smell and diesel fumes in the cabin while driving. Suspected vehicle on fire. Date of incident 01/25/2025. Vehicle at dealership for repair 01/28/2025. Dealership repair unsuccessful following STAR approved process of elimination. Vehicle returned to dealer 02/18/2025 for same issue. Many customers with 2019-2022 diesel engines having same issue. No known fix according to dealership.

The contact owns a 2022 Ram 3500. The contact stated while at a stop light, the vehicle would not accelerate, with the check engine warning light illuminated. The vehicle was towed to the dealer and the contact was informed that the hub one assembly kit and snap ring needed to be replaced. The vehicle was not repaired. The manufacturer was contact but provided no assistance. The failure mileage was 200,119.

DEF warning: see dealer. 125 miles until 5mph max speed. Happened 250 miles to nearest dealer during winter storm in SD and NE. Stranded at night, in storm, in freezing conditions, without available help. This is a potentially fatal situation due to failure of new vehicle despite preparation per vehicle manual. DEF tank 2/3 full, DPF gauge at 0. Eventually towed 135 miles to dealer to have DEF code reset. This is dangerous and very common.