If it was fueling hard and you weren't getting boost you'd have tons of black smoke, sounds like the injectors are not pushing any fuel... again... check the FICM connections.

 

keep in mind he had a new fuel pump put on 4 months ago, if it runs up to 4k with no boost and no smoke?????? that would meen he's not getting enough fuel, wouldn't it?? that thing ought to look like an old steam engine!!!!!! just a thought

 

I can unplug my fuel pump and start my truck and drive down the road, I get no boost and NO power, but I doubt I could get 4k rpms.

The easiest thing to check is the FICM connections and the wire harness, that really shouldn't take more than 30 minutes, and I've read that in more than a few cases causing this, so I thought he could start there. Really there could be a few things going on, but I'm just trying to get some things eliminated, mostly easy stuff.

I can't believe it can run to 4krpms with no boost and no smoke coming out, that doesn't even sound feasible.

How do you know there is no boost? 03 wouldn't have a boost gauge factory, can you actually hear the turbo when you fire the truck up? Or does it sound more like a big block gasser...?

 

Can here the turbo and have boost gage if you shut down the turbo with the computer it runs no problem. The ford dealership in twin has the truck now 130 for unlimited tech till they find the prob so I hope I can drive it home soon if nit I'm going to tear into it my self

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If the ficm or PCM is seeing a trouble code it will shut down motor so it does not f it up. Atleast that's what I'm getting it is in some sort of limp mode.

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Ford called said it's a short in injector harness. I'll keep my fingers crossed

 

Hopefully they get it figured out without wasting too much of your time or money! That wire harness goes from the FICM to the injectors... I wasn't too far off! Let us know how you make out.

 

try pulling the 6.0 attach it to a chain and use as a boat anchor and put a cummins with a 6 speed in problem solved

 

Crushed injector harness and a/c works again

 

cool, glad you got it goin, where was it crushed? would be good to know for future

 

The plug back of motor I was told drivers side

 

Next time try and post useful information.