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-   -   87 with tbi very high idle. (https://67-72chevytrucks.com/vboard/showthread.php?t=574431)

low88burb 04-06-2013 11:35 PM

87 with tbi very high idle.
 
bought an 87 with tbi runs at a very high idle sometimes . when its warmed up is when i notice its when it does it and check engine light is on also.

Zane M 04-07-2013 12:44 AM

Re: 87 with tbi very high idle.
 
First off, pull the codes and let us know what they are.

ksbrktracer 04-07-2013 12:48 AM

Re: 87 with tbi very high idle.
 
check the gasket between the throttle body and the manifold , clean the Idle air control valve up. Sounds like a vaccumn leak ... usually is on a throttle body

low88burb 04-07-2013 07:51 AM

Re: 87 with tbi very high idle.
 
thanks i will try those first . i was thinking the control valve too.

buffle 04-07-2013 11:46 AM

Re: 87 with tbi very high idle.
 
My 87 was as simple as a new radiator cap. The old one was bad and sensor wouldn`t let it idle down.

Joesjunk 04-07-2013 04:04 PM

Re: 87 with tbi very high idle.
 
ttt for ya

chris989 04-08-2013 08:50 PM

Re: 87 with tbi very high idle.
 
Lowburb,

Did you find your solution? did you pull the codes?


Chris


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