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Engine & cooling

2003 Jeep Wrangler Engine problems

Owners have filed 7 complaints about the 2003 Jeep Wrangler's engine & cooling with NHTSA - 7% of all its complaints, most recently on January 24, 2017. Stalling, loss of power, oil consumption, overheating, head gaskets, timing chains and engine failure.

Complaints
7
Recalls
0
Crashes
0
Fires
0
Injuries
0
Deaths
0

Engine complaints

Engine & coolingTransmission & drivetrain

2013 Jeep wrangler. Consumer writes in regards to intermittent engine problems, while driving up hills acceleration speeds decrease. *Smd the consumer stated upon driving up hills, the check engine light illuminated. The consumer stated after doing some research online, it appeared that another model was recalled for the same problem. Owners indicated the cam shaft sensors and dynamic sensor control needed a tcm update. *Jb

Filed Incident Engine and engine cooling · Power trainNHTSA 10946129
Electrical systemEngine & cooling

Tl* the contact owns a 2003 jeep wrangler. When attempting to start the vehicle, it would hesitate to start. Several attempts had to be made in order to start the vehicle. Once the vehicle was able to start, the radio would fail. When the brakes were applied, the vehicle would stall without warning. The check engine warning light was illuminated. The contact stated that the failure only occurred when operating the vehicle in the rain. The contact had not notified a dealer. The manufacturer was not made aware of the failure. The approximate failure mileage was 38,425.

Filed Incident Electrical system · EngineNHTSA 10819721
Engine & coolingFuel system

Traveling at 60-65mph vehicle cut off without warning. No lights on dash came on. Pulled out of way of other traffic and came to a complete stop. Tried starting and started right up. Mileage 77,200. *Tr

Filed Incident Engine and engine cooling · Fuel system, gasolineNHTSA 10292334
Engine & cooling

Tl*the contact owns a 2003 jeep wrangler. While driving 55 mph, the crankshaft position sensor failed and the check engine light continued to illuminate. The contact took the vehicle to the dealer and they confirmed that the sensor malfunctioned. He discovered a recall for the same exact failure with the 2004 jeep wrangler. The manufacturer stated that the failure was not under warranty and would not be covered, although he had a current 7-year powertrain warranty. The current and failure mileages were approximately 24,000.

Filed Incident Engine and engine coolingNHTSA 10230444
Engine & coolingBody, doors & structure

Paint peeling off of fenders and on the hindges of the hard top and doors. There is a constant ticking, rattle sound coming from the engine. I have driven with the head mechanic,and the dept. Manager. They both have heard the sound. The jeep has been in the shop "9" times and the problem still exhists. I have loss confidence in the local dealership's service dept.*Ak

Filed Incident Engine and engine cooling · Latches / locks / linkagesNHTSA 10075349
BrakesEngine & coolingTransmission & drivetrainElectrical system

According to internal sales brochures and advertisements the 2003 jeep wrangler rubicon is supposed to be the most capable off road jeep ever. My jeep has been nothing but problems, which consists of 2 broken axles, faulty brakes, faulty parking brake, faulty u-joint clips, faulty wheel bearing. After paying the dealer to replace parts that should have been covered under warranty, then realizing that they failed to replace another failed part, called to ask about a workaround until the needed part came in. The...

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advice given was to remove the broken axle shaft and drive without it. This caused brake and wheel bearing failure. An attempt to get the dealer to take responsibility for the repair cost took some time to get resolved. Finally, they fixed the problems and voided the manufacture's warranty. Reason for voiding the warranty was misuse/abuse because the vehicle had been used off-road and had mud on the under carriage. This is unacceptable because you cannot market a vehicle as off-road and then void the warranty if it is used in this manner. The vehicle was never submerged, or in mud/water deeper then the height of the bottom of the front bumper. Furthermore, jeep claims I am a member of a 4wd club that I have no affiliation with and claims a witness saw the vehicle under water. Both not true. Asking for help from the dot to make jeep stand by it's warranty, or have them not market the vehicle as off-road since if using it off road voids the warranty then this is false advertising. *La

Filed Incident Service brakes, hydraulic · Parking brake · Engine and engine cooling · Power train · Electrical systemNHTSA 10041471
Engine & cooling

When traveling at 55 to 60 mph vehicle cut off without warning. Vehicle would restart after few minutes. Dealer had been contacted. *Ak

Filed Engine and engine coolingNHTSA 10042369

Jeep Wrangler engine complaints by year

Wrangler engine problems, every year

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Source: U.S. National Highway Traffic Safety Administration (NHTSA) complaints and recalls, checked . Complaints are owners' own reports and are not verified. How we use the data

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