1990 Jeep Wrangler Q&A
1990 Jeep Wrangler Question: Engine
You should have the fuel pump (pressure and volume) checked and the ignition system. Either of these could be your problem. Also have them check for a plugged exhaust system. - Bret Bodas
Check spark plugs and lines. I had a similar problem and this solved it on my 2000 Wrangler. - Visitor
Need to know how many labor hours to replace my 4 cyl. 95 Jeep Wrangler engine.
...del as well as hesitation when accelerating around the 50 mph mark. Ive had the cat replaced, engine tune up, ignition coil replaced, and trnsmission service rendered and the problem persists. MP...
Engine oil leaks from the valve cover gasket, oil pan gasket and timing cover gasket are common.
...w3.org/TR/REC-html40/loose.dtd"> Ignition wire failures can cause a rough idle or intermittent engine misfire and there might not be a Check Engine light.