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Discussion Starter · #1 ·
It seems as though I can't get a break from working on this thing. Now my 20amp under hood injector fuse keeps blowing. If I unplug the harness above the motor towards the cab it didn't blow when I turn the key on. Trying to trace all the wires still need to trace a few. If the wiring is good is it possible the pcm is giving off a current that is blowing the fuse? This problem started after I fixed the grounding issue they had the engine grounded but not the frame or body. And this problem started off with the fuse lasting a week now it lasts a mile or less and sometimes pops right away. Thanks in advanced.
 

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Sometimes the fuel injector wiring harness rubs through where it passes next to a bolt it is secured to, near the back of the valve cover. Pull it apart & check it thoroughly.
 
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