2003 Jeep Wrangler Repair and Maintenance
A guide to problems, costs, maintenance and repair for your 2003 Jeep Wrangler
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2003 Jeep Wrangler ProblemsWater May Leak From A-pillar on Side Doors
Water can leak near the A-pillar, at the front edge of the driver and passenger side doors. An improved seal is available.
A Check Engine Light may illuminate indicating a "Cylinder #3 Misfire." This normally occurs in hot weather after the vehicle has been driven, parked for ten to twenty minutes, and then restarted. Heat from the exhaust vaporizes fuel inside the #3 fuel injector and causes the misfire. Installing an insulator sleeve normally lowers the temperature enough so the fuel will not vaporize.
A ticking type noise may be noted from the engine area due to an exhaust manifold that has cracked where the pipes are welded; cracked manifolds should be replaced.
2003 Jeep Wrangler QuestionsCar will not start when key is turned. Battery is new and fully charged. (1 answer)
I was thinking ignition switch malfunction or starter malfunction.
2003 jeep wrangler Sahara. Clutch replaced @ mechanic shop 3 times. #4 JUST WENT...!!! Bought used 8.2013 needing #3 (9.6.13), #4 @2.23.14. Went again 9.2014. CRAZY TO replace #5, but need to know WHY???
Normal drive. No off roading