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Gary, ASE Certified Technician
Category: Chevy
Satisfied Customers: 681
Experience:  Senior Technician
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Chev Blue Bird Bus: I have a 84 Blue Bird Bus with a GMC 396

Customer Question

I have a 84 Blue Bird Bus with a GMC 396 ci engine , 4 barrel holley carb that is ideling at 2500-3000 rpm at idle. Throttle mechanism seems to not come back to normak idle rpm. What may be the problem?
Submitted: 5 months ago.
Category: Chevy
Expert:  Gary replied 5 months ago.
Hi Dave,Sounds like the choke fast idle cam is binding and the fast idle screw is still on the cam.On the opposite side of the carb to the throttle linkage.Can you check this please?Gary
Expert:  Gary replied 5 months ago.
Hi Dave,I hope my advice has been of assistance to you. Please rate my service at your nearest convenience. Kind regards Gary