I have a 1996 Chevy 1500..4.3..2wd...lately my truck has not been wanting to start if shut it down then try and restart. Starts up no problem...runs smooth...then once i shut it off no shot that it will restart...just crank....what the hell could it be????...i put a new fuel pump in last year (plus it starts so that cant be it)...replaced the fuel pump relay...filter is new too...what else should i look at???
96 4.3 wont start after at normal operating temperature
Apr 13, 2005
7 Replies
when it won't start you are going to have to see if there's good spark or not ...and for fuel
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I 100% have spark cause i actually had the pleasure of gettin a little jolt...felt good haha...whats a good way to check for fuel?? I hear the pump workin and if the truck sits for a few hrs it starts up no problem at all...
Is it flooding out when you try to hot-start it? A faulty CTS will cause the injectors to dump fuel into the mixture even when the engine is hot causing a no-start condition. Try cracking the throttle plates wide open next time it won't hot-start and she if she turns over.
Doc
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Thanx Doc...that sounds like what it prob is..ill check it out and let you know
"MikeP" wrote: > Thanx Doc...that sounds like what it prob is..ill check it out > and let you know
it was the coolant temp switch...after the engine was hot it wasnt aloowingthe engine to dump fuel...runs great again...
Just the opposite, when the engine was hot it WAS dumping fuel which caused the problem. Hot engines need less fuel than cold engines in the mixture.
Doc
right thats what i meant..it was flooding...now im taking on the great task of rebuilding the engine in my 68 Cutlass...gonna be fun
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