View Single Post
Old 09-10-2018, 04:34 PM   #4
mikebte
Registered User
 
Join Date: Oct 2011
Location: Tucson, AZ
Posts: 639
Re: 89 suburban idle help

Could possibly be ignition related. If the ECM is not advancing the spark when fuel is applied you will receive a stumble, could also be temp sensor reading off causing the engine to think it is warmer or cooler than it really is.

Does the issue continue to happen once it is warmed up?
__________________
1959 Chevy Apache 3100/ 283 TBI / 4L60E
My YouTube:
https://www.youtube.com/mikebtte
mikebte is offline   Reply With Quote