The 1947 - Present Chevrolet & GMC Truck Message Board Network - View Single Post - 85 c10 5.0 starts then dies won't hold idle

donut · 09-14-2013, 07:07 AM

Is the gas fresh?
Is the fuel pump pumping well?
Are the messed up vacuum lines at least capped, so as not to create a massive vacuum leak?

Personally, I'd pull the carb and at least blow out all the jets and whatnot. (carb cleaner, not compressed air)

3 things it needs to run, fuel, air, and spark. Once all these things are present, then work on the when. Sounds like air and spark are present already.

Lots of smart folks here, I'm sure more will chime in.
And Welcome!

09-14-2013, 07:07 AM	#2
donut Registered User Join Date: Aug 2009 Location: S.C. Posts: 1,593	Re: 85 c10 5.0 starts then dies won't hold idle Is the gas fresh? Is the fuel pump pumping well? Are the messed up vacuum lines at least capped, so as not to create a massive vacuum leak? Personally, I'd pull the carb and at least blow out all the jets and whatnot. (carb cleaner, not compressed air) 3 things it needs to run, fuel, air, and spark. Once all these things are present, then work on the when. Sounds like air and spark are present already. Lots of smart folks here, I'm sure more will chime in. And Welcome! __________________ '86 C-30 dually, 454/tbh400 '73 K-20 350/350/205 (sold ) I'm kinda like duct tape- no real purpose, but handy to have around.