Quote:
Originally Posted by soccergk
You RARELY have to replace the TB. Usually it just needs a cleaning and you need to align it by putting the key in the on position until it stops whining. A rough idle on cold starts could be a number of things including a bad temp sensor. Check the normal things as stated above. Scan the car for codes.
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Throttle Body replace is not so rare. Yes, you can try cleaning(a I did), didn't solve the problem. Codes indicated intermittent throttle body. Proof is when replaced the TB eveything is now perfect. Sure try the simple stuff first, I can only tell you of my experinece with this idle issuse.