Question about 1999 Buick Regal
You should never have to adjust it, it is adjusted by the computer using the IAC (Idle Air Coltrol) valve.
Why do you feel that you need to?
if the idle is too high or too low then you have a problem with the car that needs to be adressed, not the idle
Posted on Nov 22, 2008
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Posted on Jan 02, 2017
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