Will not Idle

Tiny
THOMAS PREUTZ
  • MEMBER
  • 1988 GMC
  • V8
  • 25,000 MILES
Have no idle otherwise it works with no problem.
Sunday, August 6th, 2017 AT 2:32 AM

1 Reply

Tiny
KEN L
  • MASTER CERTIFIED MECHANIC
  • 42,883 POSTS
Hello,

It sounds like you have an idle air control motor that is no good or you have a vacuum leak. Here are two guides to help you confirm the problem and get back on the road:

https://www.2carpros.com/articles/how-to-replace-an-idle-speed-control-motor-iac

and

https://www.2carpros.com/articles/how-to-use-an-engine-vacuum-gauge

Please let us know what happens.

Cheers, Ken
SPONSORED LINKS
Was this
answer
helpful?
Yes
No
Monday, August 7th, 2017 AT 2:14 PM

Please login or register to post a reply.

Related Engine Stall At Idle Content

Engine Stalls After Dead or New Battery
GUIDE
Engine Stalls After Dead or New Battery
So you installed a new battery and now the engine stalls? You have done nothing wrong because believe it or not this is normal. The engine computer has a learning cycle...

Sponsored links