Mechanics

BUICK LESABRE TERMINAL PROBLEM

1993 Buick Lesabre

How do you turn down the idle on my car it is up to high and I need to know how to turn it down asap. And why is the idle on high.
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Chiquitarivers
December 11, 2012.




The idle is controlled by the pcm. Check mil codes, you can check those, yourself. Check and clean the idle air system.


JDL
Dec 11, 2012.
How do you do that and where is it located


Tiny
Chiquitarivers
Dec 11, 2012.
Just to add, to check for mil codes, you use a jumper wire between the A & B terminals at the datalink connector. Turn key just till the dash lites come on, no further. Then, the mil on the dash starts flashing, you count the flashes to get the codes.

Also, Check and make sure the throttle valve is closing, as far as the idle.


JDL
Dec 11, 2012.
Where is the idle air system located and how do I check that?


Tiny
Chiquitarivers
Dec 11, 2012.
Did you check for applicable mil codes? The iac valve is on the throttle-body. Clean the throttle-body. See if the iac has any gunk on it, clean it.

If nothing I'm saying makes any sense to you, then, I'm not sure how to help?
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JDL
Dec 11, 2012.

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