wtf chevy 4.3 problem need help asap

prolly just needs a good tune up and what not injector, plugs and the works.. If I was you I woudl just take it to a mechanic with a comp. and see if there are any codes popping up.. better than wasting an assload of money on all the wrong shit when it might just be a $20 part or sensor..

Hah I was like "Man you got off easy with a fuel filter"

yea i have a 93 silverado and my shit is doing tha same thing, i cant figure it out, and its pissin me off?! please help both of us lol

Edited: 7/30/2006 8:03:13 AM by blaa

Edited: 7/30/2006 8:01:13 AM by blaa

i think it is the egr valve & egr silinoid i had that issue to but mine is a 91 4.3 brought it to a shop and that was the issue hope this is some help

mine did that and it ended up being the fuel pressure regulator

my old one was doing that on the highway also. the engine light came on and off at the same time. only happens over 110 on the highway with mine though. 110kms btw

well it ended up being a cracked intake manifold gasket? burning coolant and stuff i guess. plus my wires are arking too. thanks for everyones help though

glad u figured urs out, lol, im still havin trouble with mine, i think it may be either a MAP sensor or a throttle positoning sensor, any takes?