2015 Jeep Grand Cherokee: sudden loss of power

Filed Nov 3, 2026 · Fuel system · UT

The vehicle lost all power in the middle of the road. We took it into the dealership. It was the high pressure fuel pump that was on recall in 2022 and went out again in 2026. Nobody will replace it due to the fact that though recall warranty has expired. But this is a big safety issue. I have metal debris all in my fuel system.

Filed Sep 24, 2026 · Electrical, Engine · PA

I own a 2015 Jeep Grand Cherokee Summit 4x4 with the 3.0L EcoDiesel, with approximately 113,170 miles. The vehicle has experienced multiple intermittent episodes of “Service Electronic Throttle Control.” During the most recent episode, the vehicle briefly jerked/lurched forward and then experienced a significant loss of engine power/boost. I scanned the vehicle and found DTC P0336 (Crankshaft Position Sensor A Performance, intermittent). Clearing the code temporarily restored normal operation, but the fault later returned. During the most recent recurrence, the engine also cranked noticeably longer than normal before starting. FCA previously issued safety recall W79 concerning loss of crankshaft-position signal on these vehicles. The recall involved a software update intended to maintain engine operation using the camshaft signal if the crankshaft signal is lost. FCA also lists warranty extension X95 concerning the 3.0L diesel crankshaft tone wheel. FCA technical documentation identifies P0336 as a possible symptom associated with crankshaft tone-wheel magnetic material failure. The vehicle has not yet been inspected by a dealer or independent shop to confirm the physical cause. I have stopped driving it because I am concerned that an intermittent crankshaft-position problem could result in unexpected loss of motive power, engine stalling, or inability to restart. I contacted FCA Customer Care regarding this issue. FCA has indicated that the applicable warranty extension has expired and has not agreed to assist with the repair. I am currently using a rental vehicle while the Jeep is out of service. I am requesting that the federal safety agency document and review this suspected safety issue. The physical tone wheel has not yet been confirmed as failed, but the symptoms and P0336 code appear consistent with the failure mode described in FCA’s documentation.

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 Feb 16, 2026 · Electrical, Engine · SC

Had to have repairs done after two weeks of purchase of vehicle for recall for vehicle losing power when picking up speed also engine light is on continuously. Contacted dealer and requested repairs Dealer was non-compliance.I had to pay for repairs myself. Still having issues and engine light still on. Contacted dealership and requested reimbursement for repairs 5 months ago haven't been reimbursed yet. What can I do. Spent $1400 for repairs

Filed Sep 22, 2025 · Engine, Fuel system · WA

While driving at highway speed, the vehicle suddenly lost power, displayed a low oil pressure warning, and became inoperable. The vehicle had to be towed. Dealer initially claimed “overfilled oil,” but an independent oil analysis (Blackstone Labs) confirmed excessive fuel dilution (5.5%), indicating contamination of the oil system. This vehicle is covered by the federal safety agency Recalls 22V‑406 (FCA Z46) and 23V‑263 (FCA 01A) related to premature failure of the Bosch CP4 high-pressure fuel pump. Recall documents state: “A HPFP failure may introduce internally failed component debris into the fuel system potentially causing fuel starvation. Fuel starvation may result in an unexpected loss of motive power, which can cause a vehicle to crash without prior warning.” The vehicle’s failure aligns with this description. Dealer has not yet performed an HPFP inspection despite recall requirements. Request: the federal safety agency investigate whether fuel dilution and catastrophic failure are linked to the CP4 HPFP defect covered by these recalls.

Filed May 14, 2025 · Driver assistance, Transmission · PA

On the highway my 2015 Jeep Grand Cherokee Diesel briefly stalled and the check engine light came on. I then lost all power and could only maintain a speed of 45MPH in a 70MPH speed limit highway. I turned on my flashers and could not get off the road due to construction and Jersey barriers for several miles. When I had the opportunity I pulled off the side of the road and called to have my vehicle towed to a service facility. I was informed by the mechanic that scanned my car for trouble codes, a P0336-00 was set in my PCM. The mechanic informed me that I would have to take the vehicle to a Jeep Chrysler dealer. This is apparently a known issue with 2014 to 2018 Jeep Grad Cherokees equipped with the 3.0L diesel engine including RAM 1500s of the same vintage with the same diesel engine installed. The specific problem is that the crank shaft tone wheel is not read by the crankshaft position sensor because of degradation to the tone wheel which is connected to the crankshaft. I have complied with all safety and emission recalls. Related: RC-RW68-20 Safety Recall W68 Transport Canada 2020-371 Loss of Crankshaft Position. Requires the replacement of the Tone wheel. Issued 02/11/2021. RC-RW58-20 Safety Recall W68 Transport Canada 2020-371 Loss of Crankshaft Position. Requires PCM Software update for Loss of Crankshaft Position. In lieu of the Tone Wheel failing, the computer uses the Camshaft Position sensor. This is only designed to not disable the car completely but allow the driver to pull of the road. P0335-00 or P0336-00 wil be set and a check engine light will illuminate. My vehicle was not included in the NTHSA Safety Recall and it should have been.

Filed Aug 8, 2024 · Fuel system · CO

The HPFP (high pressure fuel pump) on this vehicle fails causing a fuel lapse and loss of power. I have taken it to two different dealers and they say the HPFP is on recall but not available. The vehicle was available for inspection but neither dealer performed this. When the HPFP fails the engine light comes on and the electronic throttle control light comes on. This started in September of 2023 and has repeated several times. The recall for the HPFP has been announced for quite awhile but nothing has been done about it.

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 Mar 1, 2024 · Engine, Transmission · MO

Th cylinder has low compression causing misfire in the vehicle. The misfire can cause the vehicle to lose power. If you lose power on a highway it could cause an accident. This has not happened to me, but I have read the cyinder issue is a common problem with the 2015 jeep grand cherokee Seems like bad parts. A mechanic has ascertained the problem with my vehicle. If this is a common problem why has the manufacturer not fixed the problem and inspected these parts?

Filed Feb 27, 2024 · Engine, Transmission · TX

Driving on highway 290 West near Waller. At 75mph I attempted to pass slower traffic by accelerating after moving into the farthest left (passing) lane when my Jeep lost power. Had to maneuver while coasting between traffic in lanes (frogger anyone?) to farthest right lane by coasting through to an exit by chance. Would not restart while coasting. Traffic line formed behind me for those also seeking same exit I needed at the last second. I was unable to fully move into shoulder because of debris seen and fear of damage to tires. After coasting to a full stop a quarter mile from Love's Truckstop, put vehicle in park, and was able to restart after hesitation. Engine light on with my reader stating "confirmed" codes P0336, U1401; and a "pending" code of P05ED. Now takes 3-5 seconds to start when used to be "instantly." In a nutshell, this was not fun. :| Note to manufacturer , please stop skimping out on quality.

Filed Nov 20, 2023 · Fuel system · AK

I received a recall notice from Chrysler (Recall #Z46) on June 9, 2022. the federal safety agency recall number is #22V‑406. I also recently received another recall from Chrysler (Recall #66A). the federal safety agency recall number for this recall is #23V‑411. Both recalls indicate that failure of the defective part that has been recalled can result in the unexpected loss of power and a resulting crash without warning. Any resulting crash without warning presents a huge safety concern as it quite possibly could result in injury or death. To date I'm told the part for recall # Z46 is not available and the dealer will not repair Recall #66A until Recall #Z46 has been remedied. In light of the potential for injury or death resulting from the failure of the necessary repairs request that the federal safety agency become proactive in forcing the manufacturer to remedy the problem(s) noted above ASAP.

Filed Oct 23, 2023 · Engine, Fuel system · 109,939 miles · NM

The contact owns a 2015 Jeep Grand Cherokee. The contact stated while driving 55 MPH, the check engine warning light illuminated. The contact stated that the failure was persistent. Additionally, the contact stated that the vehicle experiencing reduced power while driving and stalled while idling. The vehicle was taken to an independent mechanic, where the diagnostics codes: P200A, P2D2D and P2D2F were retrieved, and the contact was informed that the failure was related to the federal safety agency Campaign Number: 22V406000 (Fuel System, Diesel); however, the part to do the recall repair was not yet available. The local dealer was contacted and informed the contact the earliest available appointment was on December 7, 2023. The vehicle was not repaired. The contact stated that the manufacturer had exceeded a reasonable amount of time for the recall repair. The manufacturer was notified of the failure and referred the contact to the dealer. The failure mileage was approximately 109,939. VIN tool confirms parts not available.