2015 Jeep Grand Cherokee: engine failure

Filed Jun 25, 2026 · Engine, Transmission · CA

System Failed: Total engine failure caused by a defective Recall W79 EGR Cooler, which is available for physical inspection at my residence.Safety Risk: The vehicle suffered a sudden, complete loss of motive power at speed. This caused an immediate traffic hazard, risking a catastrophic rear-end collision due to lost propulsion, power steering, and braking.Dealer Verification: The vehicle is currently undrivable. Jeep Corporate is actively giving me the runaround and refusing to tow or diagnose the vehicle under the EcoDiesel Settlement Extended Warranty.Inspections: No inspections have been conducted yet by police, insurance, or the manufacturer; the vehicle is fully preserved.Symptoms/Warning: No long-term warning lights appeared. The vehicle suddenly lost AC cooling and instantly stalled out without advanced mechanical warning.

Filed Feb 23, 2026 · Engine, Transmission · TX

Vehicle began displaying check engine light. Diagnostic code P219B (Bank 2 air-fuel ratio imbalance) was identified. Vehicle was serviced and a valve-related repair was performed. Shortly after, engine performance worsened and further inspection revealed metal shavings in engine oil and confirmed internal lifter/valvetrain failure. Oil levels were normal and maintenance records are available. No warning of low oil pressure or overheating occurred prior to failure. Independent service center and inspector confirmed internal mechanical failure. Engine failure created risk of sudden loss of power while driving. This appears consistent with documented Pentastar 3.6L valvetrain/lifter issues reported by other owners. Concern is potential for sudden engine malfunction and safety risk due to power loss.

Filed Nov 19, 2025 · Engine, Transmission · 85,000 miles · CA

The contact owns a 2015 Jeep Grand Cherokee. The contact stated that while driving at an undisclosed speed, the service electronic system warning light illuminated. In addition, the contact stated that the vehicle drove abnormally rough. The vehicle was driven to the destination. The contact stated that while attempting to restart the vehicle, the vehicle failed to restart. The contact stated that after several attempts, the vehicle started. The vehicle was driven to the residence. The contact stated that an independent mechanic inspected the vehicle, and the vehicle was diagnosed with a failed tone wheel and that the tone wheel had delaminated. The contact stated that the vehicle was inoperable, and the engine had seized due to a failure. The dealer informed the contact that the crankshaft software update was performed in 2022. The manufacturer was made aware of the failure. The failure mileage was approximately 85,000.

Filed Aug 26, 2025 · Engine, Fuel system · 71,000 miles · NH

The contact owns a 2015 Jeep Grand Cherokee. The contact received notification of the federal safety agency Campaign Number: 22V406000 (Fuel System, Diesel); however, the part to do the recall repair was unavailable. The contact stated that the manufacturer had exceeded a reasonable amount of time for the recall repair. The contact had gone to the dealer three times for the recall repair before experiencing a failure with the vehicle; however, the part was not available for the recall repair. While awaiting the repair, while the contact's wife was driving approximately 60 MPH, there was a clanking sound coming from the engine compartment. The sound progressively grew louder. There was no warning light illuminated. On the fourth visit to the dealer, the vehicle was diagnosed with engine failure, and the contact was informed that the engine needed to be replaced. The vehicle was not yet repaired. The manufacturer was notified of the failure and informed the contact that parts were on backorder and opened a case. The failure mileage was approximately 71,000.

Filed Aug 21, 2024 · Engine · WA

My 2015 Jeep Grand Cherokee Overland EcoDiesel (VIN# [XXX] ) had a catastrophic engine failure at 96k miles (400 miles from home) on a family trip Friday [XXX] leaving us stranded far from home for the second time in the last year (first time was for a turbo coolant line that failed requiring me to leave my car in California for 3+ weeks while parts were on back order). I still have an active AEM Warranty from the emissions recalls a few years back that's good until 120k miles, however previous inquiries have stated that this warranty doesn't cover the engine failure and was given a repair estimate in excess of $30k+. Premature engine failures have been a very common problem of this series of vehicle, it was involved in the AEM class-action lawsuit, and had numerous recalls that are related to the engine and engine components. Myself and the Lithia Jeep Dealership staff in Grants Pass, OR were all shocked when the warranty claim was denied for this replacement given the number of EcoDiesel failures they had seen. With the systemic premature failures of these engines, the AEM class-action lawsuit updates, extent of recalls that are related to the engine and engine components, I have been disappointed in how Chrysler/Jeep have handled this situation, leaving the burden of their design flaws on their customers. INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)

Filed Jul 24, 2024 · Engine · CA

While driving on the freeway, I heard a quiet noise but saw no warning messages on the dash. I decided to pull over and found the vehicle had shifted into neutral and lost power steering. The vehicle was towed to a AAA service center. They discovered that the safety recall W79 / the federal safety agency 20V‑699 Diesel ECR cooler had been replaced but failed again, requiring a complete engine replacement. The recall was repaired in May 2022, and the part failed in July 2024, two months outside the warranty. The dealer where we bought the vehicle and had the recall serviced won't return my calls.

Filed Jun 18, 2024 · Engine, Transmission · CA

- The Diesel Engine failed or malfunctioned. New/current engine is available for inspection but no longer have dead engine. Was removed by Jeep dealership. - I Was driving with my kids and as I was about to park in the lot, thick black smoke started coming from the hood of my jeep. My kids started screaming and I immediately turned off the vehicle and got my kids out, because I wasn't sure if it was going to blow up or what would happen. Called USAA to tow vehicle to dealership. - Problem was confirmed by the dealer - I have never got my vehicle serviced by anyone else besides the dealer/manufacture (DCH Chrysler Dodge Jeep Ram Fiat of Temecula) - the vehicle and component was inspected by the manufacture (DCH Chrysler Dodge Jeep Ram Fiat) - There was absolutely NO WARNING, NO LIGHTS OR SIGNES THAT THIS WAS GOING TO HAPPEN prior to the failure. (CHECK ALL RECORDS AT DEALERSHIP) ALL SERVICE COMPLAINTS ARE DOCUMENTED at (DCH Chrysler Dodge Jeep Ram Fiat of Temecula).

Filed Nov 28, 2023 · Engine · 74,000 miles · OH

The contact owns a 2015 Jeep Grand Cherokee. The contact stated that after a visual inspection of the vehicle, he observed an excessive amount of oil leaking from an unknown location. No warning lights were illuminated. The vehicle was taken to the dealer, who diagnosed a failure with the engine mount insulator. The vehicle was repaired. The manufacturer was not notified of the failure. The failure mileage was 74,000. The contact found an oil leak underneath of the vehicle. The contact took the vehicle to the dealer and they replaced the engine mount insulator.

Filed Aug 12, 2023 · Electrical, Fuel system · WA

I had a warning code of service electronic throttle. It then started to regenerate and we took it to Lithia Jeep to fix EGR recall. They needed to replace engine intake because it caught fire. Several months later the car broke down while driving, sputtering, knocking, squealing. Upon inspection, metal flakes found in oil. Suspected HPFP sucked into engine causing havoc. The HPFP is an open recall but no available replacement parts. I'm currently out of a vehicle. I've contacted Jeep but haven't heard a reply

Filed May 27, 2023 · Engine · IL

3.6L Pentastar engine is defective. In October 2020 (55,000 miles), there was a ticking noise coming from engine and reduced engine power. Fields Jeep Dodge Ram Chrysler replaced right intake camshaft and 6 lifters, rockers, and related gaskets. In April 2021, I noticed same ticking noise; brought back to dealership; dealership found "nothing wrong." In March 2022 (70,000 miles) I heard same ticking noise; brought to dealership; insisted something was wrong. SURPRISE! This time, ALL (12) ENGINE lifters/rockers/gaskets & camshafts replaced. Now, May 2023 (80,000 miles) there is, again, ticking in engine/loss of power; this time there is a noticeable bucking and surging when the engine is cold. There were no warning lights or messages on the dashboard to indicate impending engine failure. Symptoms I experienced were loss of engine power, ticking, and bucking/surging. I WISH someone from NHSTA would come and inspect the car. Safety issues can arise if the engine fails while being driven - increased risk of stalling, loss of motive power, obviously collision, any number of things. On two separate occasions, Jeep dealership identified and "fixed" the issue with the same faulty parts that caused the problem in the first place. Other than the dealership, no one else has inspected the vehicle. This issue is ongoing and will continue to occur as a result of an inherently faulty engine design, for which the only remedy is to fix it with the same defective parts.

Filed May 11, 2023 · Engine, Transmission · FL

Vehicle purchased 2/9/23 First claim is filed at tire kingdom 2/14/23 ( tires needed balancing , lower oil pan gasket , belt tensioner mentioned the engine shaking and was told they aren’t sure ) Tire kingdom ; 2/16/23 ( engine mounts changed ) Tire kingdom ; 2/20/23 engine diagnostics ( tire kingdom found no failure no check engine light ) Tirekingdom; 2/23/23 ( spark plugs , harmonic balancer ) Dealership 2/27/23 cylinder head replacements Dealership ; 3/14/23 engine mounts , alignment tire balance ( claim denied ) thermostat denied as no failure Tirekingdom ; 3/15/23 referred back to dealership for engine issue again . Dealership ; dropped off on 3/20/23 reported complete engine failure . Inspectors report 4/10/23 - inspection report confirmed engine failure . 4/22/23 received vehicle back 4/22/23 contacted silverrock and noted burning smell , poor acceleration, whining noises etc 4/23/23 check engine light comes on . 4/25/23 takes vehicle back to service center vehicle has an evap code . 5/1 contacted dealership to check on status of the vehicle , dealership has noted transmission failure , leaking oil pan . The engine that was used ( the dealership informed carvana / silverrock at the time of receipt is defective ) has indeed been categorized as defective .

Filed Oct 22, 2022 · Engine · CA

The oil cooler fails resulting in the entire cooling system being filled with the oil from the engine and possibly contaminating the engine oil with coolant. Even after the oil cooler is replaced the entire cooling system must be thoroughly flushed and have multiple parts replaced. It is a safety hazard because there is no warning, the oil cooler fails and all you engine oil is gone. Which will lead to catastrophic engine failure and possibly fire from the heat produced from the friction.