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1990 GMC 3500 7.4L No Start
Truck cranks but no start. No spark or Fuel(no power to injectors, but fuel pump ok).No codes. Replaced ECM,prom, dist module,cap,[...] 4 pin connector off module, and still no spark(pick up coil ok I think). All outputs from ECM with KeyOnEngineOff seem o...
FIX posted 7/16/1999
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Message Closed
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| VIN | 1GDHR33N1L |
| Engine | 7.4 L / 8 cyl |
| Emissions | OBDI |
| Symptoms | No Start |
| Occurs | Always |
| Misc. | I Ton C/C Dually,Old Body Style |
Message Closed
Vehicle Data
1990 GMC 3500
| VIN | 1GDHR33N1L |
| Engine | 7.4 L / 8 cyl |
| Emissions | OBDI |
| Symptoms | No Start |
| Occurs | Always |
| Misc. | I Ton C/C Dually,Old Body Style |
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