Question about 2001 Jeep Grand Cherokee

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My 2001 Jeep Grand Cherokee Limited V-8 engine will not restart after it has been driven for about 40 minutes. It starts and runs perfect when cool but it will not restart after a warm shut-down. I have fuel pressure at the rail. I suspect a sensor but which one ??

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  • dago101p Oct 06, 2009

    Thanks for the advice, I suspect the crank sensor is the problem also. Do you know of any TSB's from Jeep regarding this problem ? Do you know where the crank sensor is located on the engine ?

    It is a V-8, c4.7 Liter I think.

  • dago101p Oct 07, 2009

    Thanks for the info. I suspect it is the crank sensor.

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  • Master
  • 11,896 Answers

Either the temp sensor or cranks sensor is faulty. It is on engine block above oil pan. Just follow your plug wires to coil packs, and coil pack and module wires will lead right to crank sensor.
You can go to autozone.com and register for full free online repair manual

You can also go to google ebooks and view chilton repair manuals

Posted on Oct 06, 2009

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  • Jeep Master
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I would try a coolant sensor first off.When this does this,does the vehicle have spark?If not,the cranksensor could be the problem.This sensor fits into the engine where the heat can have a effect on it.It could have went bad.Coolant sensor replacememt is the least expense,but the crank sensor would be the next thing I would replace,If you have no equipment to test the sensors with,this is the most likely way to eliminate the sensors envolved.I hope this helps,if so,please let me know,thanks.

Posted on Oct 05, 2009

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1 Answer

I have a 1999 Jeep Grand Cherokee limited,V8 Quadra-trac which dies on the road; dash gauges drop; "no key" lite displays on dash. Restarts after cools. Two codes P 0443 and 0308 are showing? help


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