1995 YJ Idle Mystery

planetfall

New member
1043115

4 cyl., fuel inj.



After my engine warms up, the idle increases beyond what it used to. It now idles around 1,500 rpm to over 2,000, depending if I just put it in neutral after downshifting... sometimes it will decrease a little. The throttle cable is not stuck, it does this with the air filter off, it idles fine after it's started, but after it warms up, whoah.



This just started a week or two ago, does anyone have an idea?



Thanks much! [addsig]
 

1043197

Check all of your vacuum hoses. I even had a bolt back out of the intake manifold after a couple years and the gasket busted and too much air was getting in. Caused a really high idle. Just get a flashlight and look ALL over the engine compartment for a hose that might not be in it's correct location.



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