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1990 Jeep Wrangler Question: Engine

 

Question

richcoll, 2.5L 4 Cylinder, Las Vegas, NV, April 14, 2009, 10:01
 Rookie

Why is engine sputtering at high speeds? Oxygen censor has been replaced, tune-up has been done. Thank you if can help
me out.

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  • Answer #1

    Bret Bodas from RepairPal Test Shop, April 15, 2009, 08:48
     Master

    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.

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  • Answer #2

    Visitor, August 03, 2010, 08:04

    Check spark plugs and lines. I had a similar problem and this solved it on my 2000 Wrangler.

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