7.3 swap wiring issue HELP!
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7.3 swap wiring issue HELP!
I bought a 2004 f250 with a 5.4 and a 2000 f250 with a 7.3, and I put the 7.3 in the 2004 I changed every wire from headlight to tail light and the whole harness inside the cab,the swap is fully done and it runs great but when I put the 4x4 shifter in 2wd some gauges go out on my gauge cluster,(fuel gauge, battery,oil, temp,) maybe more, but when I put the truck in 4x4 they all come on and work fine with out a prob, and it does this with the truck running or not running, and the 4x4 works fine too,(has manual shifter) does anyone have any idea on what it could be?
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Junior User
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I used the 7.3 dash, every piece of wire is out of the 7.3,,,not sure if this matters but the truck with the 7.3 was ext cab with power windows, and the 2004 I put the motor in is a single cab with manual windows,
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