Help with alternator wiring harness

Taythegoat · Sep 30, 2024

Hey everyone . So I have a 2000 gmc Yukon Denali 5.7 l vortec motor . Recently changed alternator and wanted to change the alternator wiring harness . The harness currently on there is one terminal with only L wire but is a rectangle connector. I can’t find anything on how the new one could be wired as it has 3 terminals in SFL. I can’t find any new wiring harnesses that look like what is currently on my truck . Any insights would be helpful ( nvm resolved question on my own unsure how to delete )

adriver · Oct 14, 2024

Someone may answer, but this website is for a different model. In 2000, there were OBS SUVs and NBS SUVs. This website is for the later NBS. You have the 2000 Classic, OBS body style if you have a 5.7L motor. I would suggest finding a website for OBS vehicles.

Fless · Oct 14, 2024

adriver said:
Someone may answer, but this website is for a different model. In 2000, there were OBS SUVs and NBS SUVs. This website is for the later NBS. You have the 2000 Classic, OBS body style if you have a 5.7L motor. I would suggest finding a website for OBS vehicles.

Moved this to the OBS section.

exp500 · Oct 15, 2024

It's very possible your alternator was rebuilt into becoming a "one wire" alternator. A test or rebuild of former alt best option.

If you have Fixed the problem, EDIT Title line. Add SOLVED, Thanks.

Help with alternator wiring harness

Taythegoat

TYF Newbie

adriver

Full Access Member

Fless

exp500

Full Access Member

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