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Old 04-26-2016, 01:49 PM   #5
allengator
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Join Date: Dec 2010
Location: Burleson, Texas
Posts: 596
Re: Rough running 85 c10 problem

Quote:
Originally Posted by barry1982 View Post
Are you sure it's flooding? Notice any blue/black smoke out of the exhaust when it's doing it? Maybe a heat related spark issue. A bad coil sometimes runs great cold, than crappy when it warms up. Also had a 76 that ran fine cold, than very "erratic" after it warmed up. Took me forever, but finally figured out it was the small metal contact that is riveted on the end of the rotor. Cold the plastic contracted keeping the contact solid. Engine warmed up, plastic expanded, and the contact loosened enough to not hit the distributor poles properly.
+1 for ignition problem...

bad cap, rotor, wires, coil, or module (in HEI) can do this!

Anytime an engine is running erratic I check those first!!! 9 out of 10 times its cap/rotor related!
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