Mechanics

GMC JIMMY BODY PROBLEM

1999 GMC Jimmy • 125,000 miles

Vehicle stalls out under when slowing down or stopping usually starts right back up.
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Guest
January 3, 2013.



You may have a bad IAC ( idle air control) but try eliminating any vacuum leaks and cleaning the throttle body first. Remove the intake snorkel, have someone hold the throttle wide open for you and scrub the back side of the throttle plate and surrounding bore with an old tooth brush and some carb cleaner. Be sure to spray some into the small holes next to the throttle plate. That should help stabilize the idle. If it still has a problem, replace the IAC.

Wrenchtech
Jan 3, 2013.
Do you have a check engine light? Might want to disconnect the TCC Solenoid and see what happens-could be sticking-start here

Rasmataz
Jan 3, 2013.
Sorry Wrench, didn't see you-I hope you had a wonderful Christmas and New year. I'm good talk later my friend

Rasmataz
Jan 3, 2013.
No problem Ras. Happy Holidays to you too.

Wrenchtech
Jan 4, 2013.
BTW, I've learned that from you on the TCC solenoid at About -7 years ago-Thanks

Rasmataz
Jan 4, 2013.
That's not as big an issue on this later model stuff. You can't simply unplug a connector on these because most of the transmission is electronic control.

Wrenchtech
Jan 4, 2013.
I get it, learn something new again-Thanks

Rasmataz
Jan 4, 2013.
How do you disconnect the TCC solenoid?

Tiny
Kimbenoitconner
Jan 4, 2013.
You can't

Wrenchtech
Jan 4, 2013.
Oh, ok. Any other thoughts? We tried changing the IAC & it didn't help.

Tiny
Kimbenoitconner
Jan 4, 2013.
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