Rick's Free Auto Repair Advice

Ford diesel no start

My Ford diesel won’t start

If you run into a Ford diesel no start situation with your Ford 7.3L diesel where it cranks but will not start and you find you have no communication with your scan tool, chances are good that you have a shorted fuel line heater. The other symptoms of a failed heater are:

1. Blown 30A fuse
2. No “Wait to Start” light when first starting engine
3. Check Engine light.

To test the fuel line heater, first disconnect it. You’ll find the connector at the fuel filter assembly. Look for a two-wire connector with a red/light green wire. Disconnect the connector to the heater, replace the burned out fuse, then start the vehicle. If you can drive if for several cycles and the fuse does not blow, you’ve found the problem. Replace the fuel line heater.

© 2012 Rick Muscoplat

Posted on by Rick Muscoplat

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