2018 Ram 2500 engine problems

Aug 24, 2026 · failed Jan 1, 2025 · 150,000 miles · AL

The contact owns a 2018 Ram 2500. The contact stated that while driving approximately 35-40 MPH and depressing the brake, the vehicle slid in the rain. The ABS, traction control, and engine warning lights were illuminated. The contact received notification of NHTSA Campaign Number: 24V896000 (Service Brakes, Hydraulic). The local dealer was contacted, and the vehicle was diagnosed, and it was determined that the hydraulic control unit needed to be replaced. The vehicle was not repaired. The manufacturer was contacted and opened a case The contact was unable to reach a supervisor to escalate the issue. The phone call was disconnected before the connection with the supervisor. The approximate failure mileage was 150,000.

Jul 28, 2026 · failed May 28, 2026 · OH

The electronic throttle control light and check engine light are on. I took it to a mechanic and had the accelerator pedal replaced. The lights remained on and the truck remains in "limp mode" and will not go over 59mph. The mechanic stated that this is due to the unresolved recall problems with the traction control and anti lock braking system, and the HCU needing replaced. These components and labor are over 2-3 thousand dollars! I have called NHTSA and the manufacturer with questions and asked for a timeframe for a fix and have received nothing.

Jul 23, 2026 · failed Jul 26, 2024 · 15,337 miles · MO

The contact owns a 2018 Ram 2500. The contact stated that while driving at an undisclosed speed, the check engine and ABS warning lights were illuminated. Additionally, the cruise control feature was deactivated. The vehicle was taken to the dealer, where it was diagnosed with ABS failure. The contact was informed that the ABS needed to be replaced. The vehicle was repaired; however, the failure reoccurred. The vehicle was taken to the dealer, where it was diagnosed with ABS failure. The contact was informed that the ABS needed to be replaced. The vehicle was not repaired. The contact was informed that parts were unavailable. The contact stated that the vehicle was unsafe to drive. The contact received notification of NHTSA Campaign Number: 24V896000 (Service Brakes, Hydraulic); however, the part to do the recall repair was unavailable. The manufacturer was made aware of the failure, and a case was filed. The failure mileage was approximately 15,337.

Apr 16, 2026 · failed Aug 6, 2025 · NC

Component or system that failed or malfunctioned The issue involves a safety recall‑related system on my Ram truck that remains open with no available remedy for over one year. The vehicle is now experiencing traction loss while pulling and during normal driving, along with multiple failure/warning lights activating on the dashboard. How my safety or the safety of others was put at risk While driving and when pulling/accelerating, the vehicle unexpectedly loses traction, which creates a risk of loss of control, especially during traffic, turns, or acceleration from a stop. The appearance of failure lights combined with traction loss presents a serious safety risk to myself, my passengers, and other motorists, increasing the likelihood of a crash. Whether the problem has been reproduced or confirmed The safety defect is confirmed by the open NHTSA recall associated with my VIN. The traction loss and failure lights have occurred during normal vehicle operation and continue to reappear. The issue has not been repaired due to the manufacturer stating that no recall remedy is currently available. Inspections by dealer, manufacturer, or others Authorized Ram/Dodge dealers have confirmed that the recall remains open with no repair solution available from the manufacturer. The vehicle has not yet been inspected by police or insurance representatives, but it remains available for inspection. Warning lamps, messages, or prior symptoms Failure and warning indicator lights have appeared on the dashboard and remain present. These symptoms began while the recall was still unresolved and now occur in conjunction with traction loss during driving and pulling, indicating the defect may be actively affecting vehicle safety.

Dec 11, 2025 · failed Nov 12, 2020 · ME

I am reporting ongoing safety concerns with my 2018 RAM 2500 (6.7L Cummins) related to repeated emissions/aftertreatment failures and the lack of timely repair options. These failures directly affect drivability and can create hazardous situations if the vehicle enters derate mode while towing or driving at highway speeds. Over the past year, my truck has suffered multiple emissions-related component failures, including DEF dosing issues, SCR/DPF system faults, repeated warning messages, and the threat of speed-limiting derates. The vehicle is used for normal personal use, is well-maintained, and has not been modified. Despite proper maintenance, the same types of failures continue to recur. A major concern is that local RAM dealers have extremely limited ability to service these issues in a timely manner. Appointments are often weeks out, and when the truck is already in a failure state it is unsafe to continue driving. I have previously reported safety-related defects to NHTSA (ABS/HCU), and those issues later resulted in recalls—so I know that reporting matters. The combination of emissions failures, derate risks, and lack of dealer support creates a situation where the vehicle may suddenly lose power or become unsafe to operate, especially when towing or traveling in rural areas with limited service availability. I am requesting that NHTSA review whether there is a broader pattern of emissions-system failures on RAM heavy-duty trucks with the 6.7 Cummins and whether these failures pose a safety risk due to the forced-derate logic and inability to obtain timely repairs.

Dec 3, 2025 · failed Jun 1, 2022 · 63,000 miles · PA

The contact owns a 2018 Ram 2500. The contact received notification of NHTSA Campaign Number: 24V896000 (Service Brakes, Hydraulic); however, the part to do the recall repair was not yet available. The contact stated that the manufacturer had exceeded a reasonable amount of time for the recall repair. The contact stated that while starting the vehicle and while driving at an undisclosed speed, the message "Service ABS" was displayed. The check engine and ABS warning lights were illuminated, and the ABS alarm chimed. The vehicle was taken to the dealer, who determined that the ABS module needed to be replaced but confirmed that parts were not yet available. The vehicle was not repaired. The manufacturer was not made aware of the failure. The failure mileage was approximately 63,000.

Nov 3, 2025 · failed Oct 22, 2025 · TX

Turbo actuator is a defective item. Per the Facebook forums I'm in, this item is often talked about as a common point of failure. There are also several videos on YouTube describing the defect. It limits the VGT vanes in the turbo from building/retarding boost in the engine creating an unsafe driving condition by not being able to accelerate properly and limit the effectiveness of the exhaust brake function when towing leading to longer stopping times which could lead to a crash. There are warning lights and CEL codes that can be read/interpreted from a handheld scanner which I have as well as many other knowledgeable mechanics regarding this specific defective/known Ram issue. There are several codes which point to a defective turbo actuator or failing turbo itself. P00AF-turbo boost control "a" module performance P226C-turbocharger boost control slow response

Aug 29, 2025 · failed Aug 29, 2025 · FL

The contact's son owns a 2018 Ram 2500. The contact stated that while her son was driving 20 MPH, the brake pedal was depressed; however, the vehicle failed to respond. The contact stated that the vehicle started to shake abnormally. The check engine light turned on and then went off. The owner received notification of NHTSA Campaign Number: 24V896000 (Service Brakes, Hydraulic). The contact called an unknown local dealer and was informed that parts for the recall repair were not yet available. The vehicle was not diagnosed or repaired. The manufacturer was not contacted. The failure mileage was unknown.

Mar 27, 2025 · failed Jul 17, 2021 · MN

While towing a heavy load of approx. 16,000 Lbs. uphill steep grade during 100 degree temperature at low travel speed but high engine RPM a load boom came from the engine compartment. Upon inspection the fan shroud had made contact to the fan and caused severe damaged to the cooling system rendering the vehicle disabled until repairs could be made. This occurred about 30,000 miles ago however the current fan shroud has also failed under normal use. If the failed shroud damages the serpentine belt steering and breaking will be jeopardized which could lead to an accident!

Mar 22, 2025 · failed Mar 22, 2025 · MI

Truck will not shift and drops out of drive leaving you helpless

Feb 14, 2025 · failed Feb 10, 2025 · KY

Truck only has 66,000 miles and developed a bad oil leak from the timing cover/crank front of engine. Repair is going to cost around $4000 and dealer says there have been several cases of the same thing.

Jan 18, 2025 · failed Jan 17, 2025 · CA

The Turbo Actuator on the Ram 2500's especially Gen 4 are known to have faulty Turbo Actuators on them. There is a huge supply issue with trying to get one for repair , I called every auto parts store and no one could get one due to manufacture constraints. Basically they told me to call the dealer . The dealer wanted $2,200 for the part , that is outrageous for a known faulty part , please look into this as there are thounsands of people who have made this repair.

Dec 6, 2024 · failed Nov 1, 2024 · NC

1. Remote start will engage when initiated then turn off after 10 seconds. 2. Gear shift leveler not all the way in park when at park.

Sep 20, 2024 · failed Sep 20, 2024 · GA

Nothing has happened so far, however it has come to my attention that the grid heater bolt will eventually deteriorate until dropping into the intake and then into the number six cylinder. This could be a serious safety issue for me when pulling our 2970 RL Imagine Travel Trailer that could possibly weigh upwards toward 10,000 pounds fully loaded. We have traveled and likely will again Interstate 75/85 through Atlanta, parts of which has as many as six lanes. In addition to a potentially serious safety issue there would be a considerable repair cost with likely having to spend up to $20,000.00 for a new engine destroyed by a defective bolt in an extremely terrible location, and my truck has only between 50,000 and 60,000 miles on it with this engine being known as a million mile engine.

May 28, 2024 · failed May 24, 2024 · 65,000 miles · CT · fire

The contact owned a 2018 Ram 2500. The contact stated the vehicle was parked overnight on the street and unoccupied when a loud bang was heard and it was discovered that the vehicle had caught on fire. The local dealer was contacted, but the vehicle was not diagnosed or repaired. The fire department and police department arrived to inspect the vehicle where it was noticed the fire started on the passenger side of the engine however the exact origin could not be determined. The contact mentioned that the vehicle was consumed by the flames and there were only burnt framing remains of the vehicle. A police report was filed but the case number was not available. No injuries were sustained. The vehicle remained in the contact's possession. The manufacturer was not made aware of the failure. The failure mileage was approximately 65,000.

Apr 5, 2024 · failed Mar 20, 2024 · OH

On 20 Mar 2024, the vehicle throttle went to full throttle and was stuck in full throttle while on the highway. After kicking the accelerator pedal multiple times the throttle came out of full and then entered limp mode with the message “service electronic throttle control” displayed. The accelerator pedal did not stick on anything and the truck actively pulled the accelerator pedal away from my foot and completely into the firewall. Luckily the brakes were strong enough to control the acceleration but this occurred in a packed part of the highway with few options to pull to the side of the road. After kicking the pedal more and cycling the power to the truck, it exited limp mode and normal operation was restored. Afterward the truck displayed no codes so the mechanic could not verify the problem. This has occurred 3 times now.

Mar 17, 2024 · failed Feb 9, 2024 · NM

Loss of power/turbo. I was hauling a heavy load when I had a loss of turbo power on highway. Causing my truck to loose mph up a hill and almost getting struck by a semi vdd into my trailer. Check engine light is on and turbo don’t kick on anymore. I haven’t had the money to fix the problem but I’m certain it’s the turbo/turbo actuator.

Feb 28, 2024 · failed Feb 21, 2024 · 130,000 miles · NY

The contact owns a 2018 Ram 2500. The contact stated that while towing a trailer at 55 MPH, the turbo actuator failed to operate with the check engine warning light illuminated. Upon investigation, the contact discovered Technical Service Bulletin: 09-005-22 which linked the failure to the turbo actuator kit. The dealer was notified of the failure and referred the contact to the manufacturer. The manufacturer was then notified of the failure and referred the contact back to the dealer to have a diagnostic test performed. The vehicle was not repaired. The failure mileage was approximately 130,000.

Feb 28, 2024 · failed Feb 21, 2024 · NY

when hauling my 20' enclosed trailer with a 10k lbs load my 2018 ram 2500 turbo actuator went out. my exhaust brake is inoperable due to the turbo actuator not functioning properly. the truck does not build boost as it should. there is a service bulletin for 2015 ram 2500 with 6,7 cummins in them. bulletin number [XXX]. this bulletin covers the exact part that went out on my truck while hauling. the part numbers from 2015 to 2018 model years did not change. i have attempted to reach out to ram about this issue. they state that the part is different even though the dealership says it is the same. here is a link to said defective part. [XXX] INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)

Feb 14, 2024 · failed Jan 3, 2024 · IN

The truck developed and engine tick. They got progressively worse, and it felt like the engine was misfiring and made the speed of the truck inconsistent when I tried to accelerate in decelerate. The mechanic told me the engine ticks were definitely coming from the lifters and we had it repaired. This was not cheap. The ticking went on for about one month before I had it repaired. I have attached the invoice.

May 10, 2023 · failed Apr 1, 2023 · GA

Vehicle has 62953 miles. Ram service dept says the vehicle needs new engine,pcm,hydro boost assembly, hydraulic control unit, shifter assembly. They repaired the drag link in 2019. This did not solve issue. The tires were being worn rapidly. Ram said they would replace the drag link. Vehicle is drivable but not safe.

Feb 9, 2023 · failed Feb 9, 2023 · GA

Multiple reports from 6.7 Ram Cummins owners experiencing the failure of the grid heater. The grid heater failure leads to the destruction of the engine. Ram uses a grid heater to warm up the vehicle during cold temperatures for starting. During this process, it has been reported, that the not of the grid heater melts off and enters the engine causing catastrophic damage.

Feb 7, 2023 · failed Dec 1, 2020 · MS

First time brake system hydraulic control unit failed was at 17,000 miles, now have 76,000 and it has failed again. Abs system notification goes off and on constantly. Turbo actuator has failed at 76,000 miles. Check engine light and associated ecu codes are flashing. Rear view camera on tailgate goes out intermittently.

Dec 9, 2022 · failed Mar 15, 2021 · TN

The brake anti lock warning light comes on intermittently causing cruise control to be turned off.Yes it can be inspected.I feel this is a safety issue when driving at highway speeds.

Nov 21, 2022 · failed Nov 1, 2022 · CO · crash · fire

Diesel truck computer system shuts down truck for minor def system error code to 5mph within 85 miles to get to a dealer to reset computer code. This will cause deaths from truck not going any faster than 5mph on freeway. Just because the def system sees an error and might cause a bit more exhaust, to shut down your truck in the middle of nowhere causing traffic nightmares and deaths is the most stupid rule the EPA and mfgs follow. Epa and mfg needs new computer programming on all diesel trucks that have this. If anything, make the derate to 65 mph for 500 miles, far enough so folks can get home safely.

Nov 16, 2022 · failed Sep 21, 2022 · CO · crash

Def warning light comes on for no reason and derates your speed to 5mph while traveling on interstate pulling trailer. You have only 85 miles to get to a dealer to erase codes. This is a very unsafe computer programing setting that the EPA states must be done. Going 5mph while on interstate pulling trailer will cause numerous deaths and accidents. 85 miles in nothing when your out in the middle of nowhere.

Nov 9, 2022 · failed Nov 2, 2022 · NC

The engine oil pressure light suddenly comes on and the pressure drops causing the engine to turn off. Vehicle turns off in the middle of road while driving can cause serious accidents and injuries.

Oct 13, 2022 · failed Jan 1, 2022 · 19,000 miles · NY

The contact owns a 2018 Ram 2500. The contact stated that after two weeks of not driving the vehicle, the vehicle failed to start up after several attempts. Several unknown warning lights were illuminated on the instrument panel. The contact jumpstarted the vehicle and made an appointment with the dealer. The vehicle was taken to the dealer who informed the contact that they could not duplicate the failure. However, the dealer replaced the battery. The contact stated that the failure persisted. The vehicle was taken back to the dealer on two other occasions; however, the dealer could not duplicate the failure. The vehicle was not repaired. The manufacturer was not notified of the failure. The failure mileage was approximately 19,000.

Aug 13, 2022 · failed Aug 13, 2022 · UT

Diesel Particulate Filter (DPF) and other exhaust components. When the vehicle is in a "Regeneration" cycle and the vehicle comes to a stop, it dies about 70% of the time. Causing traffic back ups and nearly a reared collision from another driver. This issue started at 112000 miles and does it 3-6 times daily. It's been in and out of the dealer (Young Chrysler Jeep Dodge and Ram Richard Lindema Shop# 385-332-3978 Cell# 801-589-8943) totaling 6 weeks and $22,000 in repair bills and its still not resolved. I see on diesel forums this is a known problem that Dodge doesn't know how to fix.

Jun 10, 2022 · failed May 20, 2022 · TX

The check engine light came on and vehicle gave a 196 miles to reduced power and shutdown warning. Vehicle was taken to dealer and diagnosis was that the Diesel Exhaust Fluid gauge and pump assembly had failed. Repairs were made at dealer. Failure of this part can put the driver in a situation of reduced power and danger while driving on highway.

May 11, 2022 · failed May 10, 2022 · CA

While operating the vehicle on cruise control the electronic throttle control failed and the vehicle went to full throttle. Stepping on the gas did not fix the problem. Luckily the brake lamp were applied and the brakes slowed the vehicle to a stop eventually while the engine was still at full throttle. Once the vehicle was safely on the side of the road, it was turned off. The vehicle had a warning that said to service the electronic throttle control. The vehicle was started again to get it onto a tow truck once it arrived, and the vehicle still went to full throttle. The vehicle was towed to the nearest dealership. Once at the dealership the vehicle was started again to get it off of the tow truck. The engine operated normally at that point. The throttle failing to full throttle is a huge safety issue. Luckily there was minimal traffic on the high way. The vehicle took a very long to to stop. Selecting Neutral could have helped but everything happened very quickly and caught the operator off guard.

Jul 30, 2021 · failed Jul 23, 2021 · LA

The DEF Pump responsible for controlling the flow of Diesel Exhaust Fluid to reduce exhaust emissions prematurely fails (in my case, it was at 61,000 miles) which forces the truck into "limp mode" limiting the speed of the vehicle to 5 miles per hour. Additionally, once this part fails, the truck cannot properly dispense DEF to the exhaust to reduce diesel emissions as designed and as mandated by the EPA. Manufacturer acknowledged failure of the part and began redesign and remanufacture of the DEF Pump prior to the Covid pandemic. Replacement part availability is sporadic at best. Further, repair of this component has not been covered by Federal emissions warranty or any extended warranty of the drivetrain, thus forcing a several thousand dollar repair on the consumer. Online search reveals thousands of other Ram truck owners who are experiencing the same issues as described here My vehicle has been appropriately maintained and yet this occurred without warning of the imminent failure. Once the failure occurs, the vehicle poses significant risk to the environment due to inappropriate emissions, and places an undo financial burden on the consumer for a known manufacturing defect. I brought my vehicle to an authorized Ram dealership who diagnosed the issue as described above and then repaired the vehicle at a cost to me of approximately $ 2,100.00.

Jul 15, 2021 · failed Jul 1, 2021 · NC

truck engine failure at 120,920 miles. 6.4 hemi in a 2500 ram truck. this is the 3rd truck that has engine failure at approx 120,000 miles and reports of bearing metal in the block. seems that there is an issue with the engine parts that are not lasting and resulting in engine failure while in operation. loss of power and power.

Feb 7, 2021 · failed Jan 15, 2021 · 26,018 miles · CO

Truck slides after being parked . It has slid anywhere from 1 foot while I stood there watching. To several feet where I had to jump back into the truck to stop it. And over 14 one night from the time I parked to when I came out the next morning. Does not fully accelerate thru a turn.,tough to turns sometimes. In same turns

Sep 23, 2020 · failed Sep 13, 2020 · MI

Bad starter over the miles

Mar 24, 2020 · failed Nov 15, 2019 · CA

Tl* the contact owns a 2018 ram 2500. The contact received notification of NHTSA campaign numbers: 19V818000 (equipment, engine and engine cooling) and 20V036000 (power train). The contact called hilltop chrysler located at (3291 auto plaza drive, richmond, ca 94806) and was informed the remedy parts were not available. The vehicle was not diagnosed nor repaired, the manufacturer was not made aware of the issue. The contact had not experience a failure. Vin tool confirms parts not available.

Mar 5, 2020 · failed Jan 5, 2020 · FL

Loss of throttle from dead stop and while at varying speeds, vehicle is not throwing any codes. Dealer is stumped and has sent me away in a truck that could cause a serious accident. Ive filed a complaint with ram trucks/chrysler fiat but not getting much traction.