problems with GM TBI

[Webb Family]

Sounds like an Idle Air Control "IAC" solinoid/motor might have gone bad.

Jeff Bratcher wrote:

> Upon cold start up it would run great until I shut it off. When I
> immediately restart it (ie after going into a store, etc.) I noticed
> that it would stay at high idle and would not come back down to normal
> idle until the Jeep was shut off and sat long enough for the motor to
> completely cool off (overnight usually).
> <snip>