6.0 unusual problem

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Sep 27, 2012 | 12:02 PM

altonlee

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6.0 unusual problem

I have a 2004 ford 6.0 that have installed a new hpop had the ficm redone and now it wont start the only code I get is the u0105 lost commo with ficm. I have took the wiring harness off and checked all wires and replaced the ficm plugs. When I redid the harness the truck seemed to hit twice and then nothing and back to the u0105 code. Has anyone ever ran into this problem?

Thanks
Alton

Sep 27, 2012 | 01:05 PM

npccpartsman

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From: Stuttgart, Ar

You either have a FICM, PCM, or a circuit problem. You need to start checking your harnesses CLOSELY.

Sep 27, 2012 | 05:21 PM

Snuggyworm

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From: Houston, TX

yep. sounds like a wiring issue. maybe a loose connection somewhere.

Sep 27, 2012 | 05:44 PM

cheezit

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From: N. Fort Worth, tx

who fixed the ficm?

Sep 27, 2012 | 05:56 PM

Snuggyworm

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From: Houston, TX

maybe it might be glow plug relay module? i believe the ficm also has a harness which will plug into it, and if tat aint right, i dont think she'll fire up either.