2018 Jeep Wrangler fuel system problems

Filed Nov 3, 2026 · Electrical, Engine · TX

Vehicle shutting off. Keeps spitting warning lights. Engine hot

Filed Oct 13, 2026 · Fuel system · 53,000 miles · MI

The contact’s wife owns a 2018 Jeep Wrangler. The contact’s wife stated that while driving at 25 MPH, the vehicle made an unusual sound. The vehicle was taken to the dealer, where it was diagnosed that the skid plate had failed and needed to be replaced. The manufacturer was made aware of the failure by telephone. The failure mileage was approximately 53,000.

Filed Jul 13, 2026 · Engine, Fuel system · CA

I purchased this 2018 Jeep Wrangler JK Unlimited on July 19, 2025. Since purchasing the vehicle, I have experienced repeated mechanical failures that have required multiple repairs. The most serious issue involves the engine overheating at highway speeds without any visible coolant leak or clearly identifiable cause.Despite seeking professional diagnosis, the source of the overheating could not be determined. Shortly afterward, the vehicle developed a P0302 (Cylinder 2 Misfire), raising concerns about possible internal engine damage caused by the overheating.I believe this presents a significant safety hazard. An engine that overheats unexpectedly while driving at highway speeds can lose power or fail without warning, creating a dangerous situation for the driver and surrounding traffic. The vehicle has become unreliable and unsafe to operate because I cannot predict when it may overheat or experience another engine failure.As someone who often drives alone, I no longer feel safe taking this vehicle on long trips. I am concerned that the vehicle could leave me stranded on a highway or in a remote location without warning, placing my personal safety at risk. A vehicle should provide dependable transportation, not expose its occupants to the possibility of sudden mechanical failure.This vehicle has spent more time in repair facilities than on the road. I have incurred thousands of dollars in repair expenses, and I am now being asked to pay for an engine teardown simply to determine the cause of the failure before any warranty consideration can be made. Despite multiple repair attempts, the underlying cause of the overheating and engine problems has not been resolved.I am submitting this complaint because I believe the repeated overheating, unexplained engine malfunction, and resulting cylinder misfire may indicate a safety-related defect that warrants investigation. I request that the review to determine whether similar failure whether a broader safety issu

Filed Mar 30, 2026 · Engine, Fuel system · NC

The vehicle is a 2018 Jeep Wrangler with a 3.6L engine and approximately 124,000 miles. The engine has experienced a failure involving multiple components, including suspected head gasket failure, significant oil loss with no visible external leak, low oil pressure, and engine knocking. Diagnostic trouble codes P0365 and P06DD were present, indicating camshaft position sensor issues and oil pressure control failure. The vehicle is available for inspection upon request. This condition creates a safety risk due to the potential for sudden engine failure and loss of power while driving, which could occur without warning and increase the risk of an accident. The problem has been confirmed by an independent repair facility, which identified low oil levels, coolant loss, and symptoms consistent with internal engine damage. The vehicle has not been inspected by the manufacturer. Prior to the failure, warning signs included a low oil pressure condition and engine performance changes. These symptoms developed rapidly over a short period of time. The vehicle is currently not safe to operate due to the risk of further engine damage or sudden failure.

Filed Jan 18, 2026 · Brakes, Fuel system · NY · crash

My wife and I were at a stop light behind a box truck in our 2018 Jeep Wrangler, about 15 feet between us. I had slowed to stop and had my foot on the brake. All of the sudden the Jeep reved up (idle increase), did not see the tachometer, and with my foot on the brake accelerated into the box truck in front of us. When it started to accelerate, I pushed the brake peddle to the floor to stop the Jeep but it did not do a thing. I see 2 problems her: 1. The acceleration when stopped 2. The brake did not hold. There were no injuries or damage to the box truck. We were able to drive the Jeep about 20 miles to the dealer we bought at. It is ow being worked on in the body shop. The Jeep dealer technicians did a computer check on any codes that were activated, but unfortunately all after the fact.

Filed Dec 26, 2025 · Fuel system · IN

The vehicle experienced a fuel/propulsion failure involving sudden loss of engine power. After internal engine repairs performed by the dealership (camshaft and valvetrain work), the vehicle was returned to me as repaired and safe to operate. Within minimal post-repair driving (less than one mile), the vehicle entered limp mode, lost propulsion, and the engine shut down while driving in active traffic. The vehicle required towing back to the dealership. The loss of propulsion occurred on a busy city roadway and created an immediate safety risk to me and surrounding motorists due to the sudden inability to maintain speed or power, with a foreseeable risk of collision. The problem has been confirmed by the dealership. After subsequent inspection and teardown, the dealer documented catastrophic internal engine damage, including cylinder wall scoring and a failed head gasket. The dealership acknowledged that deeper inspection during the prior internal engine repair would have revealed the need for engine replacement. The vehicle has been inspected by the dealership multiple times and by the dealership’s insurer. The manufacturer (Stellantis) has opened a customer care case. The vehicle is currently available for inspection and has been removed from service due to safety concerns. Prior to the failure, the vehicle displayed warning indicators and messages at the time of the incident, including limp mode activation and critical alerts immediately before and during the shutdown. No warnings were provided to me at the time the vehicle was returned from repair regarding unresolved internal engine risk or potential loss of propulsion.

Filed Oct 23, 2025 · Electrical, Fuel system · CA

The fuel pump relay that is embedded within the Totally Integrated Power Module (TIPM) failed on my 2018 Jeep Wrangler JK Unlimited after only 47391 miles, causing intermittent engine stalls and problems starting. When taken to the Sisbarro Deming, NM CDJR dealership for repair, there were no replacement TIPMs in the stock system available to fix my vehicle, despite my vehicle being only 7 years old. This suggests an abnormally high rate of failure if the manufacturer is unable to maintain an adequate stock to support their vehicles. Given this has been an issue with Jeeps of previous model years (1), it is evident the problem has not been addressed yet. (1) https://www.autosafety.org/cas-calls-the federal safety agency-investigation-chrysler-totally-integrated-power-modules-tipm/

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

My 2018 Jeep Wrangler JL Sport is experiencing multiple premature engine failures that present a serious safety risk: •Vehicle overheats while driving. •Recurrent misfire on Cylinder #5 (DTC P0305). •White exhaust smoke with a sweet coolant smell on cold start. •Coolant loss despite recent refill. •Oil contamination with metallic particles found during inspection. •Valvetrain noise from the right bank, suspected intake camshaft wear. These conditions create a risk of engine seizure or sudden stalling while driving, which could cause a crash. Manufacturer awareness: Jeep/Mopar has issued bulletins acknowledging these exact problems, including: •TSB MC-11018482-0001 (May 2025): Intake camshaft/rocker wear causing misfires (P0301–P0306). •Customer Satisfaction Notification ZD8 (2023): Coolant inlet tube fastener issue causing coolant leaks and overheating. My vehicle’s symptoms directly align with these known manufacturer issues. Despite this, Jeep/Mopar has denied goodwill repair coverage. Safety Concern: This defect is not just a performance issue — it creates a high probability of sudden engine stall or seizure, endangering me, my passengers, and other drivers. I am requesting the federal safety agency investigate premature engine failures on the Jeep Wrangler JL (3.6L Pentastar) and require Jeep/Mopar (Stellantis) to address this safety hazard.

Filed Aug 6, 2024 · Electrical, Fuel system · TX

1. The power steering, gauge cluster, multifunction display, wipers, door locks, ignition on/off, blinker and most other electronic aspects fail or operate without command. 2. The speedometer does not show speed, power steering fails entirely or intermittent including in turns, turn signals fail to indicate, traction control shows failure, abs shows failure, 4wd shows failure, airbags show failure. Vehicle turns off while on highway due to fuel sensor indicating empty even though the car is filled with at least half a tank. 3. Yes, multiple times, Demontrond Jeep Conroe, Tx 4. Yes by Demontrond Jeep Conroe, Tx 5. All warning lights illuminate at time of failures. No lights were observed before initial failure. Failures began August of 2023.

Filed Aug 26, 2023 · Electrical, Engine · WI

there is a recall, 19A, that has no fix yet. the "this-might-happen" happened to me. clutch plate hot, hole through transmission, near melted fuel lines. got it fixed, major work $6000. Chrysler won't reimburse me because "there is no fix for the recall yet." that is the point. my car sustained major damage due to the recall issue with no fix. when they do find a fix, the replacement parts that i have now will still have to be fixed. nothing, including 3 weeks rental, covered under extended warranty because it is a recall issue. recall reimbursement documentation not processed because there is no fix. they have been running me around for almost 2 weeks. i am not someone who can drop $6000 without major pain. i paid with what cash i had, financed what i could at 23%, and had to have a friend use her credit card for the rest. i have nowhere left to turn.