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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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Related Documents & Media | VIN | 1GNDM15ZXM |
| Engine | 4.3 L / 6 cyl / GAS |
| Trans | 4-speed Automatic |
| Delivery | FI |
| Symptoms | Backfires |
| Occurs | Hot, Under Load, on Accel |
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 |
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