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No fuel delivery. Diagnosis help?


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Does anyone have a simple diagram of power flow from the ignition switch through the fuel pump relay, ballast resistor, and to the fuel pump?

I'm working on my '87 4.0 / 5 speed.

 

I think my pump is dead, but I'd like to check power along the way before I purchase the bosch unit and going through the trouble.  

Ultimately, I know I can just check for power at the pump, but I'd like to know the power flow just for my own knowldege.

 

thanks

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