The 1947 - Present Chevrolet & GMC Truck Message Board Network - View Single Post - Beelzeburb, The Story More Than a Decade in the Making

mosesburb · 06-07-2011, 01:55 AM

Sweet. You had me going on the carb story as I did the same thing on my first conversion--that did not end well either.

You mention when it fired it idled at 1300. Was that the "fast idle" for a cold engine or was it that rpm for no reason?? I am wondering because a IAC can create a hard start condition very easily. Is the IAC original or have you replaced it?? On your scanner, can you check IAC counts with key on engine off?? I have had issues with IAC units that have been out of service for extended periods of time in the past. I have had issues with cold starts on one, and hot restarts on another with no obvious issues while running--just in crank mode. Grabbed one off the shelf (against my better judgement) and all was well. It might be something to look into if you have not done your characteristic thorough inspection on it already.

06-07-2011, 01:55 AM	#128
mosesburb I had a V-8 Join Date: May 2003 Location: Phoenix AZ Posts: 1,116	Re: Beelzeburb: Part 39 Sweet. You had me going on the carb story as I did the same thing on my first conversion--that did not end well either. You mention when it fired it idled at 1300. Was that the "fast idle" for a cold engine or was it that rpm for no reason?? I am wondering because a IAC can create a hard start condition very easily. Is the IAC original or have you replaced it?? On your scanner, can you check IAC counts with key on engine off?? I have had issues with IAC units that have been out of service for extended periods of time in the past. I have had issues with cold starts on one, and hot restarts on another with no obvious issues while running--just in crank mode. Grabbed one off the shelf (against my better judgement) and all was well. It might be something to look into if you have not done your characteristic thorough inspection on it already. __________________ 1972 K20 Suburban, 5.9L Cummins, Banks Power Pack, NV4500HD, NP205, H.A.D., D60/14FF ARB Link To Build: HERE.