Jeep Wrangler Check Engine Light. Learn what your check engine light means without the use of an obd2 scanner or any other fancy garage machines or computers. A check engine light, often referred to as a malfunction indicator lamp, is displayed to warn the driver that the computer senses a fault somewhere in the vehicle.
Engine rebuilt @ 50k after throwing a rod no odd sounds (that's weird, heh?) now the check engine light stays on.
Come join the discussion about reviews, performance, trail riding, gear, suspension, tires, classifieds, troubleshooting. This will also rest other warning lights on the dash. Jeep tj check engine light self diagnosing is a lot easier than you think. A check engine light can indicate a broad spectrum of problems with your 2004 jeep wrangler.