Question about Jeep Grand Cherokee

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Engine quit while driving, tach and speedometer quit working, all other guages OK, checked for spark - none, replaced coil, still no spark. Any sugestions?

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  • Garret Cockrell Aug 02, 2009

    Thanks for your response. The CPS was part of the problem, also the "spacer" on top of it. I can't tell which failed first. The pulse ring chopped up both parts after the failure. I installed a rebuilt distributor for the repair. Thanks again.

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It sounds like a faulty crankshaft position sensor. If you replaced the coil and if the coil is good, then the crankshaft position sensor is the thing that I would consider as the problem. The crankshaft position sensor is a magnetic sensor that determines the position of the crankshaft and relays that information to the computer. The computer uses the information to set the electronic timing for the car. If the crankshaft position sensor is faulty, you will get no spark, even from a good coil. Hope this helped and best wishes.

Posted on Aug 01, 2009

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