500 is a normal warm in gear idle...mine idles at 500 and 600 with the a/c on. If it fluctuates then you have a problem. That being said, with 84k on the clock it's due for a good throttle body cleaning. Remove it and clean with carb/throttle body cleaner.
Wait...i'm lost. So it's surging? Clean the throttle body and if it was me i'd just replace the TPS and IAC valve (or clean...don't move the spindle though)...they're both decently cheap.
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-07 RCSB 2wd 5.7-
Magnaflow muffler, Airaid MIT, Predator 87 Tune
Last edited by SeVeReDiStOrTiOn; 08-01-2009 at 01:26 PM.
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