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Thread: 04 Silverado 4.3 to 4.8 Swap Need Help

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  1. #1
    Join Date
    Feb 2010
    Location
    Odessa, texas
    Posts
    916
    with the truck being an 04 u need a harness for DBW i dont think u can use the harness for a DBC with an 04 but i may be wrong
    1983 Ford Ranger- 2.3 to 205k mile 6.0 swap

  2. #2
    Join Date
    Oct 2009
    Location
    Anderson, Missouri
    Posts
    33
    Well my truck is currently drive by cable as the 4.3 was when I pulled it out
    1999 Tahoe Z71 4 Door - HID Lows & Fogs, Weathertechs, LED Interior Conversion, Lots of Audio, K&N FIPK, Shift Kit, Vette Servo, Exhaust, Blackbear Tuned, Tahoe LTZ's

    2005 Silverado RCSB 4/6 Drop - SOLD
    2000 Silverado RCSB 10" Lift on 37s - SOLD

  3. #3
    Join Date
    Feb 2010
    Location
    Odessa, texas
    Posts
    916
    i know this but with the v8 they are DBW
    1983 Ford Ranger- 2.3 to 205k mile 6.0 swap

  4. #4
    Join Date
    Oct 2009
    Location
    Anderson, Missouri
    Posts
    33
    Yea I understand...Nelson has already set up the pcm (red/blue connectors) for the drive by cable i'm thinking my biggest problem with the harness is that its a 2000 harness and with my 2004 fuse block the pin outs are different in that harness causing numerous things not to be working. If i'm not mistaken the 03+ are blue and green which are different pin outs as well
    1999 Tahoe Z71 4 Door - HID Lows & Fogs, Weathertechs, LED Interior Conversion, Lots of Audio, K&N FIPK, Shift Kit, Vette Servo, Exhaust, Blackbear Tuned, Tahoe LTZ's

    2005 Silverado RCSB 4/6 Drop - SOLD
    2000 Silverado RCSB 10" Lift on 37s - SOLD

  5. #5
    Join Date
    Feb 2010
    Location
    Odessa, texas
    Posts
    916
    the pinouts for red/blue and blue/green are for the pcm....i think your problem is the bcm in your truck isnt liking the 2000 model computer and thats causing it not to run..you might be able to swap bcms but you would have to swap gauges too... im not sure that would work though
    1983 Ford Ranger- 2.3 to 205k mile 6.0 swap

  6. #6
    Join Date
    Dec 2007
    Location
    Ponca City
    Posts
    1,606
    Chick spent a month trying to make his work like that and finally gave up. Save yourself trouble and headaches. go spend $150 on a 03+ harness,tac,and pedal assembly and be done with it
    Slowest in Oklahoma...

  7. #7
    Yep so much easier to convert to DBW and use the same year harness and PCM.

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