There are 9 owner-reported engine complaints for the 2004 Jeep Wranglerin NHTSA's database. These are unverified consumer reports and may not reflect confirmed defects.
TL* THE CONTACT OWNS A 2004 JEEP WRANGLER. WHILE DRIVING 20 MPH, THE ENGINE STALLED WITHOUT WARNING. THE VEHICLE WAS SHIFTED INTO PARK AND RESTARTED; HOWEVER, THE FAILURE RECURRED SEVERAL TIMES. THE VEHICLE WAS NOT DIAGNOSED OR REPAIRED. THE MANUFACTURER WAS NOT NOTIFIED. THE FAILURE MILEAGE WAS 114,000.
TL*THE CONTACT OWNS A 2004 JEEP WRANGLER. WHILE DRIVING AT VARIOUS SPEEDS, THE VEHICLE SHUTS OFF AND RESTARTS ON ITS OWN. WHEN THE ENGINE SHUTS OFF, THE VEHICLE COMPLETELY LOSES POWER. THE CONTACT TOOK THE VEHICLE TO THE DEALER FOR A DIAGNOSTIC TEST, BUT THE COMPUTER DID NOT REGISTER THE FAILURE. THE VEHICLE HAS BEEN TO THE DEALER APPROXIMATELY FIVE TIMES. THE CURRENT MILEAGE WAS 21,492 AND THE FAILURE MILEAGE WAS UNAVAILABLE.
WHILE TRYING TO USE THE AC ON MY 2004 JEEP WRANGLER , IT WAS OVERHEATING. I TOOK TO A DEALERSHIP SERVICE DEPT.THEY SAID IT WAS THE CLUTCH FAN.REPLACED UNDER WARRANTY AND TOLD ME IT WORKED FINE AFTER BEING TEST DRIVEN AND VERIFIED. I DROVE THE NEXT DAY,COULD NOT USE THE AIR BECAUSE AS SOON AS THE MOTOR WARMED UP IT OVERHEATED TO 260. I SHUT IT DOWN AND HAD IT TOWED BACK TO SAME DEALERSHIP(3RD TIME). TOLD THEM TO CHECK THERMOSTAT WATERPUMP ETCC.. EXPLAINED THAT I CAN'T EVEN DRIVE IT NOW FOR OVERHEATING. THREE AND HALF HOURS LATER THEY SAID IT IS A RADIATOR RESTRICTION AND I AM 32 ND ON A LIST BECAUSE APPARENTLY THERE HAS BEEN QUITE A PROBLEM WITH THE RADIATOR ON THE JEEP WRANGLER BUT NO RECALLS. THEY ALSO SAY THEY DON'T KNOW IF IT IS COVERED UNDER WARRANTY. I HAVE HAD IT LESS THAN A YEAR AND ONLY HAS 24000 MILES ON IT. THE WARRANTY IS 3/YR/36000 I BELIEVE. AM CHECKING ON HTIS. HAS ANYONE ELSE REPORTED THIS PROBLEM?
2004 JEEP WRANGLER BURNING ALOT OF OIL. MECHANIC REFUSES TO REPAIR. *KB THE ENGINE USED TO BURN A HALF A QUART OF OIL BETWEEN OIL CHANGES. THAT HAS INCREASED TO 1 QUART OF OIL BETWEEN OIL CHANGES. THE MANUFACTURER SAID THIS WAS NORMAL AND REFUSED TO FIX THE VEHICLE. THE DRIVER'S SIDE PLASTIC WINDOW CRACKED. *NM
DT: THE CONTACT STATED CAR SHUT DOWN AT SLOW SPEEDS. HE OWNS A 2004 JEEP WRANGLER UNLIMITED. HAS BEEN HAVING THIS PROBLEM SINCE 3-05. THERE WERE 4,000 MILES ON THE CAR WHEN IT FIRST SHUT DOWN. THE CAR DID NOT MAKE ANY NOISE BEFORE THIS HAPPENED. NO LIGHTS CAME ON. THE DEALERSHIP COULD DUPLICATE THE PROBLEM. THE DEALERSHIP HAS TALKED TO THE MANUFACTURER. THE DEALERSHIP PUT A BRAND NEW COMPUTER AND A NEW THROTTLE BODY, BUT THE PROBLEM RECURRED. *AK
WHILE DRIVING 70 MPH THE ENGINE STALLED WITHOUT WARNING. AS A RESULT THE VEHICLE LOST ALL POWER. *JB THE FAILURES CAUSED THE CONSUMER TO PULL OFF OF THE HIGHWAY WITHOUT THE USE OF POWER STEERING. *SC *JB
HARD STARTING AND STALLING. THE VEHICLE WILL CRANK AND CRANK AND WILL START SOMETIMES OR YOU MUST TURN THE KEY OFF AND TRY TO RESTART, AND WILL START THE SECOND TIME, BUT USUALLY RUNS POORLY FOR A FEW SECONDS. WILL SOMETIMES STALL WHEN PUTTIN INTO GEAR. DEALER HAS CHANGED FUEL PUMP AND PUT A SHIELD OVER ONE OF THE FUEL INJECTORS. STILL HAVING THE HARD STARTING PROBLEM.*AK
OIL LEAK FROM ENGINE/TRANSMISSION. *NM
2004 JEEP WRANGLER SPORT WITH 4.0 I-6 ENGINE. WOULD STALL AFTER COMPLETE WARM UP WHILE IDLING IN GEAR. DEALER INSTALLED HEAT SHIELD OVER FUEL INJECTOR, BUT STILL HAVE STALLING PROBLEMS ON COLD START. NO LIGHTS OR ANYTHING COME ON. ONLY HAD 400 MILES ON IT WHEN FIRST OCCURRED. NOW, AT 16000 MILES, I'M HAVING STALLING ON COLD STARTS IN WARM WEATHER ONLY. IN THE WINTER, THE VEHICLE RUNS GREAT. DEALER CANNOT RECREATE THE PROBLEM, AND DO NOT KNOW WHAT TO DO.*JB
Complaints are unverified consumer reports submitted to NHTSA. A high complaint count may reflect vehicle popularity, not defect severity. Data sourced from NHTSA public records.
Data synced from NHTSA on May 4, 2026