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2000 Chevrolet C2500 5.7L Backfire at 70 Mph
Help gm guys!This truck has a popping sound at 70 mph. It's hard to telll if it's coming from the intake or exhaust, but I think exhaust. It dosen't seem to be missing when it back fires. There are no codes,fuel presure is norm,vac is norm,o2 sensors seem to b...
FIX posted 6/19/2001
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Message Closed w/FIX
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Related Documents & Media | VIN | 1GCGC24R4Y |
| Engine | 5.7 L / 8 cyl / GAS |
| Trans | 4-speed Automatic (Electronic) |
| Delivery | FI |
| Emissions | OBD-II Compliant |
| Symptoms | Backfire at 70 Mph |
| Occurs | Cruise |
Message Closed w/FIX
Vehicle Data
2000 Chevrolet C2500
| VIN | 1GCGC24R4Y |
| Engine | 5.7 L / 8 cyl / GAS |
| Trans | 4-speed Automatic (Electronic) |
| Delivery | FI |
| Emissions | OBD-II Compliant |
| Symptoms | Backfire at 70 Mph |
| Occurs | Cruise |
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