Classic Trucks '47-'98 GM Trucks - Performance | Conversions | General Discussion

94 Chevy 350 TBI..... stumbles...HELP!!!

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Old Jul 18, 2010 | 02:06 PM
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Default 94 Chevy 350 TBI..... stumbles...HELP!!!

Guys,


I've got a 94 Chevy 1500. The motor is about 2 years old, and I've had ZERO problems out of her.

As of yesterday, she stumbles on acceleration... even back firing thru the TBI if I romp on her. I have changed out the cap, rotor, ignition control module... I've checked the EGR valve... she compresses and reseats, I've changed out the IAC valve/solendoid, I've changed the fuel filter... checked the timing. Checked the brown timing wire, I'm lost. Seems either it's not advancing or it's not getting enough fuel.. I'm about $30 bucked to death right now!!!!


Any help appreciated>>> if this is the wrong forum please move this thread as needed.



Thanks,


Mark
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Old Aug 6, 2010 | 10:26 AM
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Had almost the same problem except that I didn't hve any backfire. It just turned out to be bad gas from one of those cheap gas stations. Might just check the throttle body?
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