2003 Jeep Wrangler Engine Problems
5 owner-reported engine complaints from NHTSA data
Data sourced from NHTSA public database. For informational purposes only. Always consult a qualified mechanic.
Owner Complaints (5)
Your engine loses power when accelerating uphill, and the check engine light comes on during these situations. Based on online research, other Jeep models with the same issue needed updates to the transmission control module and replacement of camshaft sensors. The fix likely involves updating your vehicle's computer software and possibly replacing faulty sensors.
Parts you may need:
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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
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.
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
WHEN TRAVELING AT 55 TO 60 MPH VEHICLE CUT OFF WITHOUT WARNING. VEHICLE WOULD RESTART AFTER FEW MINUTES. DEALER HAD BEEN CONTACTED. *AK