1991 Chevrolet Astro CL 4.3L Backfires
this vehicle will backfire through throttle body on light accel under load while hot. cat isnt restricted. fuel pressure ok secondary ignition is good. any help is appreciated.
FIX posted 3/21/2007
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Message Closed w/FIX
Vehicle Data1991 Chevrolet Astro CL
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Message Closed w/FIX
Vehicle Data
1991 Chevrolet Astro CL
VIN | 1GNDM15ZXM |
Engine | 4.3 L / 6 cyl / GAS |
Trans | 4-speed Automatic |
Delivery | FI |
Symptoms | Backfires |
Occurs | Hot, Under Load, on Accel |