Question about 1994 Jeep Grand Cherokee

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Having problems with fuel delivery seems to stall out at idle after it has been running awhile, i have changed fuel filter and spark plugs. 1994 jeep grand cherokee laredo with 318 v8 engine.

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Try cleaning the idle air controle. Mine was shutting off everytime it warms up and woldnt stay on durintg idling. The engine will reset after some miles of driving like that and correct but once the battery cable is unhooked it resets back to normal and will give you the same problems. Cleaning the IAC will correct......

Posted on Jan 30, 2012

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Go to an electronics shop supplier and get a can of freeze spray.
it cools to -60f. let the jeep run until it misbehaves ,then cool down the ignition module.if it runs,you know it is bad. you could have either a heat related electronic issue,or something like a frozen egr valve ,or iac motor that keeps leaning and leaning out the mixture.
the catalytic converter could be plugged...usually a sulfur smell is with that and setoff the check engine light.
,the computer controls the idle and the fuel injection.
you may have an issue in the ecm itself. cooling down the ecm will let you know if there is an issue.
even a distributor cap that is cracked can heat up and fail
and the lead wires themselves.

Posted on May 15, 2009

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