My wife's 98 4 litter Jeep Grand Cherokee didn't want to start. I did some checking and it had spark & fuel pressure . I found out if I held the gas peddle down a little it would start and run fine , but as soon as I let up on the peddle it dies . Seems to run normal as long as you use the gas peddle to make it idle . There's no Check Eng light . Any body have any idea's . Thanks in advance Runk.....
Grand Cherokee forgot how to idle
Aug 22, 2007
2 Replies
Possible bad idle speed control or gunked up throttle body.
It's likely your EGR valve. If carbon hangs up the spring, then it won't idle. I cleaned mine and it fixed the problem, although you may have to replace yours.
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