
2000 GMC C6500 Topkick C6H042 7.4L No Start
towed in no power to pcm . removed rats' nest and repaired harness. this is where it gets interesting, confirmed power to computer and crank sensor still no start . . Old school checked function of crank sensor by moving screw driver back and forth on end ...
FIX posted 9/16/2025
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Message Closed w/FIX
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VIN | 1GDG6H1D3Y |
Engine | 7.4 L / 8 cyl / GAS |
Delivery | Fuel Injection / sefi |
Emissions | OBD-II Compliant |
Symptoms | No Start |
Occurs | Always |
Message Closed w/FIX
Vehicle Data
2000 GMC C6500 Topkick C6H042
VIN | 1GDG6H1D3Y |
Engine | 7.4 L / 8 cyl / GAS |
Delivery | Fuel Injection / sefi |
Emissions | OBD-II Compliant |
Symptoms | No Start |
Occurs | Always |