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rpmdiag
rpmdiag, Tech and Instructor
Category: Buick
Satisfied Customers: 6847
Experience:  Since 1975
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High idle in 89 buick lesabre.replaced tps...cleaned iac...

Customer Question

High idle in 89 buick lesabre.replaced tps...cleaned iac...
Submitted: 2 months ago.
Category: Buick
Expert:  rpmdiag replied 2 months ago.

Hi, I'm Ron and I will be helping you today.
Stand by for a moment while I prepare your answer.

Expert:  rpmdiag replied 2 months ago.

Okay, the IAC may also be bad or in need of a re-learn.

I attached a procedure for you to follow and I also need to to drive it right away after you do this at idle and slow speeds, then idle again and turn on the AC.

This will train the IAC. if it doesn't work, check for vacuum leaks. If there are none, hen replace the IAC motor.

Thanks, Ron

Expert:  rpmdiag replied 2 months ago.

Hi, I'm just following up with you to see if you have any more questions.
Thanks, Ron

Customer: replied 2 months ago.
Due to the heavy rains I have yet to try this procedure
Expert:  rpmdiag replied 2 months ago.

Okay, I'll stay tuned in for you.

Thanks, Ron