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1991 Chevrolet C3500 Cheyenne 7.4L No Start, Poor Idle Quality, Cuts out, Stall, loss of power
This truck will usually not start, backfires through the tbi assembly, even shooting flames while cranking while the EST wire/connector (timing check) is connected (normal position). If it does start, it runs so poorly that you cannot accelerate without it blo...
FIX posted 10/20/2002
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14 Replies Received
14 Replies Received
Related Documents & Media | VIN | 1GCHC34N1M |
| Engine | 7.4 L / 8 cyl / GAS |
| Trans | 4-speed Automatic (Electronic) |
| Delivery | FI / TBI |
| Emissions | CA emissions |
| Symptoms | No Start, Poor Idle Quality, Cuts Out, Stall, Loss of Power |
| Occurs | Always, W/Est Wire Connected |
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Vehicle Data
1991 Chevrolet C3500 Cheyenne
| VIN | 1GCHC34N1M |
| Engine | 7.4 L / 8 cyl / GAS |
| Trans | 4-speed Automatic (Electronic) |
| Delivery | FI / TBI |
| Emissions | CA emissions |
| Symptoms | No Start, Poor Idle Quality, Cuts Out, Stall, Loss of Power |
| Occurs | Always, W/Est Wire Connected |
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