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Mr billb_093

High idle

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Hey folks been under the weather for the last 3 years. Looking to get back into my  Baby 1990 Reattta convertible. Idles around 25 cold and 30 when warm. How do I do the diagnostics on it. All the vac hoses have been changed throttle body has been cleaned as well as the MAF with MAF cleaner  

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I can't help but there is a Reatta forum down in the Buick section you might try asking there if you don't get any response here.

 

Glad you are doing better!

 

Dave

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Check for vacuum leaks...throttle body gasket leak?

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IAC could be out of calibration.......if it has one......been years since I was under the hood of a 90 Buick.

 

Idle Air Control Motor............next to the throttle body. First check if you unplug the MAP or MAS to see if the car has computer control.....if it doesn’t, you say will go down hill.

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