Sounds more like the temp sensor on the thermostat (archive)
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Posted by Bill R. on April 02, 2001 at 12:24:59:
In Reply to: Now its Getting WAY Worse posted by Ed F on April 02, 2001 at 11:47:58:
(posted from: cx800837-a.tucson1.az.home.com (24.177.218.119))
This morning (about 32 degrees), car started just fine, let it warm up for the kids. 15 minutes later idling about 1500 rpm. By the time I got the car home 10-15 mins later its was idling at 4500 rpm. Scary.Check the idle valve replacement in Bentleys. Said remove the intake manifold. Is this really necessary?
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