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Unstable idle and kick down...
Posted by 9k Wrencher (more from 9k Wrencher) on Fri, 7 Jun 2002 00:54:34
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My 87 9kT 5spd has had a problem that has been getting worse and I can't find the cause. Whether the engine is cold or warmed up, taking your foot off the throttle and letting the engine drop back to idle always results in the engine dropping to 600 rpm, shuddering (like almost stalling), then jumping up to 1200 or so before settling back down to 850. Once the idle has stabilized, it actually fluctuates a little but barely enough to show on the tach. (This is with the A/C off, ECON mode.)
I haven't done anything yet but look through past posts here, and am confused by the many possibilities. Can anyone take a good stab at what parts or sensors to check, and how to check them. Or at least give me a technical description of what's there and how it operates within the system?
TIA, and thanks to all for such a great site!
posted by 165.247.21...
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