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1999 jeep runs rough - Cherokee Jeep Cars & Trucks

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1. Check compression

2. If it is good freshen up your tune up. New spark plugs if they are overdue, check the spark plug wires by looking at them under the hood while someone starts it at night. If wires are breaking down you can see the tell tale flashes on the wires. Fuel injection flush.
3. oh if the compression check is not good the poor compression cause must be resolved first.

Posted on Dec 31, 2014

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Mikey108
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SOURCE: 1999 Jeep wrangler runs rough

Check the gas, could be water in it or drive the car with a fuel pressure tester connected to it and watch to see if you lose pressure.
Normal pressure while driving is about 30 to 40 psi

Posted on Oct 07, 2008

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Cheers.

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1 Answer

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Check the gas, could be water in it or drive the car with a fuel pressure tester connected to it and watch to see if you lose pressure.
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