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1991 Chevrolet C3500 Silverado 5.7L Harsh 1-2 shift, code 73
Transmisssion was overhauled (replaced all clutches, seals, and recently replaced solenoids). When first test driven the transmission set a code 28 (pressure manifold). Followed diagnostic chart in GM manual and came to Replace ECM/PCM. Okay, fine, so the ECM ...
FIX posted 3/16/1999
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Message Closed w/FIX
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Related Documents & Media 
| VIN | 1GBJC34K1M |
| Engine | 5.7 L / 8 cyl / GAS |
| Trans | 4-speed Automatic |
| Delivery | FI |
| Affected | Harsh 1-2 Shift, Code 73 |
| Misc. | Utility Body |
Message Closed w/FIX
Vehicle Data
1991 Chevrolet C3500 Silverado
| VIN | 1GBJC34K1M |
| Engine | 5.7 L / 8 cyl / GAS |
| Trans | 4-speed Automatic |
| Delivery | FI |
| Affected | Harsh 1-2 Shift, Code 73 |
| Misc. | Utility Body |
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