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unplug the fuel heater at fuel filter housing it is probably shorted out.chqnge fuse and should be fine

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Q: Fuse for fuel heater wastegate solenoid and injector driver module relay coil is blowing when key is turned forward on a 99 f350 super duty 7.3 diesel What could be causing this problem?
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What do you trouble shoot if a fuel injector fuse keeps blowing and you saw a small amount of smoke from one of the wires going into the engine?

Trace that wire back and see if it might be grounding out on another metal surface or another wire might be grounding itself out causing a arc effect causing the smoke.


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