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1993 Jeep Grand Cherokee Question: After about 15 miles I get intermittent miss and it will die when coasting.

 

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4liter, 4.0L 6 Cylinder, Mountain View, HI, May 12, 2011, 16:07
 Rookie

It fires right back up after it dies but the intermittent miss is still there until it has sat for a couple hours then it will run fine for about 15 miles. It has new tune up plugs wires cap & rotor. new fuel filter and fuel pressure regulator. no check engine lights.

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  • Answer #1

    Visitor, May 12, 2011, 16:44

    Crank sensor is most likely to blame

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    4liter, May 12, 2011, 21:44
     Rookie

    I have also noticed a voltage drop on the in dash volt meter at the same time from around 13.4 volt to 12.4 volt. could this be related?

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  • Answer #2

    asetechtp May 12, 2011, 17:26
     Enthusiast

    I have seem many Jeep crank sensors fail. Usually when they get hot. I would have a professional check it to be sure.

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