2018 Jeep Grand Cherokee: fuel pump failure

Filed Aug 12, 2026 · Engine, Fuel system · CA

Vehicle Information: 2018 Jeep Grand Cherokee Overland 3.0L V6 EcoDiesel 4x4Component Affected: Fuel/Propulsion System (High-Pressure Fuel Pump) Safety Incident Narrative: The vehicle previously underwent a mandatory manufacturer safety recall replacement for the Bosch CP4 High-Pressure Fuel Pump under FCA Safety Recall Z46 (the federal safety agency Campaign Number: 22V‑406). At 111,948 miles, while operating the vehicle, the engine suffered a sudden, catastrophic mechanical failure accompanied by an immediate and total loss of engine oil pressure. This caused the engine to suddenly stall and lose all propulsion while in motion, creating an immediate and severe highway safety hazard to myself and surrounding traffic.The vehicle was towed to an authorized Jeep dealership under Repair Order #5823328. The manufacturer (Stellantis) and the dealership are currently refusing to authorize diagnostic teardown labor or a mechanical review of the internal safety recall componentry to investigate an acute internal fuel-pump shaft seal leak or residual micro-particle metallic debris from the prior campaign. An internal drive-shaft seal failure on this replacement pump architecture dumps raw diesel fuel directly into the engine's internal oil crankcase, causing severe oil dilution, an immediate collapse of structural oil pressure, and catastrophic engine seizure. The manufacturer is attempting to shift 100% of the financial burden ($25,000 engine replacement cost) onto the consumer, actively obstructing an essential safety failure investigation into a federally recalled component.

Filed Jul 15, 2026 · Fuel system · UT

I own a 2018 Jeep Grand Cherokee EcoDiesel that has experienced repeated high-pressure fuel pump (HPFP) failures despite completion of the federal safety agency HPFP safety recall. After the recall was performed, my vehicle developed the exact failure described in the recall. Metal contamination was found in the fuel system, requiring replacement of the HPFP and major fuel system components. Approximately 13,000 miles later, during routine fuel filter maintenance, I suspected the failure had returned. I asked the dealership to inspect the fuel filters for metal contamination, but they declined. I then removed and cut open the filters myself and documented visible metal shavings consistent with the recall failure. This is the second occurrence of metal contamination after the recall repair. I retained the filters, saved fuel samples, and documented everything with photos and video. I provided this evidence to the dealership and Stellantis. A STAR case was opened, but the Stellantis District Manager instructed the dealership not to perform any repairs because the vehicle has no check engine light and remains operable. The recall warns that HPFP deterioration can contaminate the fuel system and cause a sudden loss of engine power, increasing the risk of a crash. It also states this failure may occur without warning lights. My concern is that Stellantis is requiring complete pump failure before authorizing repairs, despite documented evidence that the recall failure condition has returned. I still possess the contaminated filters, fuel samples, photographs, video, and service records and will provide them upon request. I respectfully request that the federal safety agency investigate whether the recall remedy adequately corrects this defect and whether Stellantis' refusal to repair a vehicle exhibiting the same safety-related failure condition is appropriate.

Filed Apr 17, 2025 · Engine, Fuel system · VA

Three concerns: (1) the engine light is on. mechanics cannot determine why. (2) the car has trouble starting. When I park indoors, the car doesn't start. The engine turns over several times and the RPM goes all the way up, but the car will not start until the 3rd or 4th try. mechanics cannot determine why. (3) when I pump gas, the fuel pump automatically shuts off even though the gas tank is not full. So I have to hold the pump in place and use the gas gauge to determine when the tank is full. mechanics have seen this problem in other jeeps but haven't given me a reason why.

Filed Apr 3, 2025 · Fuel system · TX

I have been experiencing slow crank issues for months now. The vehicle will have a slow crank then start. If it does not start on the first try, it will start on the second attempt. This concerns me as I've read many complaints regarding high pressure fuel pump issues on Jeep Grand Cherokees. I am concerned about my safety especially being stranded at night time. I was told I need to change the fuel pump. I called the dealership and was also told that many Jeep Grand Cherokees have been experiencing the same issue which was fixed by replacing the fuel pump. If many vehicles are experiencing the same problem, why is this not considered a recall?

Filed Oct 4, 2023 · Fuel system · AZ · 1 injury

When refueling the vehicle, the fuel pump handle must be inverted in order to deliver gas. Without such upside down delivery. the pump shuts off.. The Inverted handle delivery creates a health and safety issue as gas can easily overflow the tank fuel filler tube. My wife just spent three days in the hospital after being bathed in gas, and now has heart and vision issues as a result. Jeep has a history of gas filler tube issues. Numerous Internet blogs report the same issue.

Filed Jun 19, 2023 · Engine · AZ

I attempted SEVERAL times to have the Stellantis/Chrysler/Jeep 'Z46 - High-Pressure Fuel Pump Failure' recall repair performed on my 2018 Jeep Grand Cherokee Summit Platinum 4X4 EcoDiesel. The 'Z46' recall was issued in JUN 2022. Yet over ONE YEAR LATER each time I inquire about performing this recall repair the Jeep dealer advises that "there are no parts available to perform the recall repair". I submitted a complaint to Stellantis/Chrysler/Jeep Customer Assistance and asked that the problem be escalated. I received no response or further follow up to that complaint submission. I need to sell the vehicle in the next 30 days but cannot sell the vehicle due to the open Z46 recall. I am suffering economic injury as a result of the Jeep dealer's inability to perform the Stellantis/Chrysler/Jeep 'Z46' recall repair.

Filed Mar 30, 2023 · Engine · AZ

Jeep issued a recall for the high pressure fuel pump on our 2018 Grand Cherokee about a year ago and a redesigned fuel pump by Bosch is still not available. I am unable to travel out of state for fear that the fuel pump will fail possibly causing a crash or leaving me stranded at my own expense. Why have a recall if the manufacturer can just ignore it and start discontinuing the product which Jeep has started to do at the beginning of 2023. Repeated attempts to get service from Jeep for the recall have resulted in the message no parts available. What is the federal safety agency doing about this recall?

Filed Oct 7, 2022 · NC

Almost four months have passed since this recall was announced. It has to do with the high-pressure fuel pump which could fail and introduce debris into the fuel system potentially causing fuel starvation. This could result in loss of motive power which can cause a vehicle to crash without prior warning. We need to continue to drive this vehicle. We keep checking to see whether parts are available to remedy this situation, but they are not. How long do we have to live with the fear of having a crash due to this unrepaired recall?

Filed Jan 28, 2022 · Electrical, Engine · MS

There are numerous safety issues with this vehicle. The most concerning is electrical/fuel/engine relating to the TIPM. The vehicle intermittently refuses to start. The integrated fuel pump relay in the TIPM fails. This has left my wife stranded in potentially dangerous areas. It has also died while the vehicle was in motion. In addition to the TIPM issues, the digitizer of the factory radio/navigation system has delaminated from the LCD screen. The safety issues this causes are multiple: random phone calls while driving (distracting), random radio station changes (again, distracting to a driver), and an inability to properly utilize navigation (potentially dangerous if it tries to change a route and indicates last-second turns). It also prevents the driver from calling someone if they are in need of help. Not only does hands-free calling not work, but even when taking out the phone to dial, the haywire behavior of the device being connected via bluetooth makes calls difficult. These are known issues by the Jeep dealer with frequent warranty replacements admitted by the advisor and technician, yet they have been zero assistance in helping because the vehicle is out of warranty. It will require action from someone like the federal safety agency to get Jeep to correct these problems for many owners. It is criminal to charge people this amount of money for a vehicle that simply doesn't do what it is supposed to do.

Filed Oct 30, 2021 · Acceleration, Electrical · MA

I purchased my 2018 Jeep Cherokee right off the dealership lot in Lynnfield MA in August of 2018. I then have had on going issues. Starting with strange squilling sound coming from back of vehicle,this was never found reason by technician but they replaced engine air filter jume 2020, then my heater wasn’t working in dec.2020, replaced motor blower with wheel, then may2021 my vehicle just shut down as I was driving on the highway to work at night no prior warnings beforehand, lucky no one was hurt towed in and no start and transmission was stuck no fuel pressure, dtc related and shorted fuel pump. Replaced module fuel pump level unit. Now just October 29,2021 my vehicle is not starting I jumped the battery and lights come on but vehicle won’t start. Dealership I purchased vehicle from won’t contact me back so I towed the vehicle to them and still no response. I’m very disappointed in Jeep I don’t feel safe or that my vehicle is not dependable and for all the money I keep putting into it I should have a dependable car.

Filed Jan 6, 2020 · Fuel system · 18,000 miles · NC

Tl* the contact owns a 2018 jeep grand cherokee. On several occasions, while driving various speeds, the vehicle lunged forward, the electronic throttle control indicator illuminated, and the vehicle stalled. The vehicle was coasted safely off the roadway. The contact was unable to restart the vehicle. On the first occasion, the vehicle was towed to lee chrysler jeep dodge ram (765 center st, auburn, me 04210) where it was diagnosed. The contact was informed that the throttle ignition coil and the fuel filter needed to be replaced. Additonally, after a second failure, the vehicle was towed to herb chambers chrysler dodge jeep ram fiat of millbury (2 latti farm rd rte. 20, millbury, ma 01527), but the mechanic was unable to duplicate the failure. The vehicle was then taken to autostar chrysler dodge jeep ram of hendersonville (401 duncan hill rd, hendersonville, nc 28792) to be inspected; however, no failures were discovered. After an additional failure, the vehicle was towed to danbury chrysler jeep dodge ram fiat (100b federal rd, danbury, ct 06810) where the contact was informed that the high pressure fuel pump needed to be replaced. The vehicle was repaired. The manufacturer was notified of the failures and did not assist. The failure mileage was approximately 18,000.