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94 chevy 4.3L c1500 runs bad at low rpms
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derail
New User
Mar 26, 2009, 4:20 PM
Post #1 of 2
(2087 views)
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94 chevy 4.3L c1500 runs bad at low rpms
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hope some one can help me ok my 4.3L z code started running rough after i rebuilt tb so replace it ok same thing run like its loading up over gas when you get to about 1500rpms only time this happens is when in gear have give it good tune up same thing all vac line are new egr working do know what to do with it now but i do have 85 350 just rebuilt needs some were to be if i can fix 4.3 well put it in some one know what mounts i well need any help well be thanked all hole lott daughter what pickup to drive thanks
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Loren Champlain Sr
Veteran
/ Moderator
Mar 26, 2009, 4:34 PM
Post #2 of 2
(2082 views)
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Re: 94 chevy 4.3L c1500 runs bad at low rpms
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Are you saying that this has TBI? There are several reasons that it could be overfueling. Any DTCs? Being a GM, I'd check the CTS reading, fuel pressure, O2 readings. Let us know what you find.
As far as the 350, I'm not saying it's impossible, but will be VERY expensive. All of the emission stuff or computer stuff will not be compatible. Nor will the exhaust system. You'd be better off buying a wrecked '94 with the 5.7 and use it for the needed parts.
Loren
SW Washington
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