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high idle after warm-up
Posted by eric 85 900t (more from eric 85 900t) on Sat, 27 Mar 2004 18:56:27
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I just did my first headgasket last weekend on my "new" 84 900s (8v N/A w/5spd)! What a job... Anyway, before I did the job, the idle would start at about 900 rpms when the engine was cold and then climb to 1500 rpms over the first 5 minutes of driving. I figured that was part of the bad headgasket. Turns out it's not. New headgasket in place, not using oil or coolant and I still get the idle going to 1500 rpms after a few minutes of driving. If I turn it off and restart while the engine is still warm it idles between 900 and 1500 until it warms up all the way again at which point it's at 1500 rpms. On cold starts it sometimes stumbles for a second but not all the time. If I pull the oil dipstick cover off while idling high, it drops back down to 1500 rpms. Any ideas would be appreciated. Thanks all
Eric
87 900 base - 220k in the process of engine reinstallation
85 900t - 196k waiting to be parted out after dying a slow death
84 900s - back in action
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