2004 California TJ idle speed fluctuates
My 2004 tj has an intermittent problem. At idle the rpm fluctuates. It will drop to 1 1/4 dot on the tach (400-450rpm I think). It will stay that low until you tap the gas. Idle speed goes to about normal rpm but flucuates by a needle width. I've been chasing this problem for awhile. I found a piece of metal (wire rope strand about 1 inch long) stuck to my crankshaft sensor. I remove it and replaced the sensor because I already bought one. Before changing Crankshaft sensor the jeep would stall in stop and go traffic. Now it doesn't stall but it doesn't have a smooth or steady idle. I've done a tune up, camshaft sensor, speed sensor, idle air controll module, map sensor, throttle postion sensor and up stream O2 sensors. Any idles?
Running Secretly Amok!
When you replace all of those items did you give the throttle body a good cleaning?I mean like taking it off the intake manifold?Check all you vacuum hoses and fittings for looseness,cracking,etc.
Originally Posted by GOLENJEEPTJ View Post
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