Car Problem Reports

Jeep Wrangler Ignition wires may fail and cause engine performance problems

Jeep Wrangler Problem
9 Reports
Me Too

Model Years Affected: 1990, 1991, 1992, 1993, 1994, 1995, 2009

Engine Affected: 4.0L 6 Cylinder

Average Mileage: 56,266 mi (27,000 mi - 85,532 mi)


Ignition wire failures can cause a rough idle or intermittent engine misfire and there might not be a Check Engine light.

  • Visitor, , 27,000 mi

    started running rough and would stay running. One dealer couldn't figure it out after 5 days, i towed it to another dealer and finally they noticed a burnt wire. The wires were arching and they replaced two instead of all, now at 38500 it happens again... dealer wants $400 parts/labor for wires, plugs...bought wires/plugs and did on my own.

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  • Visitor, , 4.0L 6 Cylinder, 85,532 mi

    engine misses throughout driving and backfires

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