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Idle per usual


Trevorrudai

Active Member
Joined
Feb 24, 2020
Messages
30
City
Idaho
Vehicle Year
1986
Transmission
Manual
Trucks idling like garbage so naturally start at the IAC valve unplug it truck dies no matter what RPMs the truck is idling at
 
If idle is high at cold start then slowly goes down as engine warms up, the IAC Valve and ECT sensor are OK

If idle is just rough then clean and re-gap spark plugs
And add a can of injector cleaner, like Seafoam, to the gas tank
Dirty injector tips drip fuel instead of spraying it at idle rpms, causing misfires at idle
 
Trucks idling like garbage so naturally start at the IAC valve unplug it truck dies no matter what RPMs the truck is idling at

Congratulations, you don't have a vacuum leak.
 

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