Mechanics

IDLE PROBLEM

1994 Cadillac Concours • V8 FWD • 150 miles

What would make the engine idle high on a 1994 cadillac concours?
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Jaxbch3031
July 23, 2011.



Idle control motor, vacuum leaks, which engine is fitted 4.6 or 4.9?

Mhpautos
Jul 23, 2011.
4.6 northstar v8, and by the way thank you for responding so promptly

Tiny
Jaxbch3031
Jul 23, 2011.
4.6 liter northstar v8, thank you

Tiny
Jaxbch3031
Jul 23, 2011.
There is no adjustment with the 4.6 so check the icm, clean throttle plate and check for vacuum leaks, also do a scan to check for any unresolved fault codes.

Mhpautos
Jul 23, 2011.
Thank you, how do I check for unresolved fault codes in my garage at home? I am not an idiot but, you know. Kinda old school and need help for this

Tiny
Jaxbch3031
Jul 23, 2011.
You will need a scanner, if the cars drivable, take it to most larger parts stores they often do free basic scans.

Mhpautos
Jul 23, 2011.