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01-31-2017, 12:03 AM
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#5 |
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Registered User
Join Date: Mar 2014
Location: Redwood City
Posts: 242
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Re: 2000 GMC 3500 454 / 4L80E no reverse
Check all the wiring. Mine went into limp mode once because I pulled the heater fuse, and at least in early years, GM had used it to scavenge power for the shift controller. If they still had a DRAC in 2000 check it out thoroughly, I never trust complicated electronics as executed by GM :/
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1991 R3500 3+3 C+C 6.2/4l80e/14ff Fleetside Dually 1992 K2500 ECLB 5.7/4l80e/14sf(g80) 8600gvwr 1991 CR500 (95 Burb wouldn't stop catching fire  )
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