M1009 driver's side alternator

[deercoker]

I ordered a new DL7157 alternator but the wiring terminals are not the same, I have searched the threads and also the -20 TM F9 charging diagram with no luck one finding my answer, there is a brown wire with a snap type connector on the back of my old alternator but not the new DL 7157 and cannot figure out what that wire is for and if it is even necessary, I am thinking maybe voltmeter gauge?

 

[jcollings]

Pretty sure that that wire is for the diagnostic port for access on functionality of systems of the vehicle.

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[jcollings]

This member does a pretty good job on explaining that alternator

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[jcollings]

Also don't throw away your original alternator fix it

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[deercoker]

This member does a pretty good job on explaining that alternator

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Good but he does not even talk about that wire

 

[jcollings]

He does 3 or 4 videos on that alternator FYI

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[jcollings]

He talks about that connection at 7.37 in the clip FYI

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[deercoker]

He talks about that connection at 7.37 in the clip FYI

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Thanks I saw that, goes to the diagnostic port under the dash, the DL7157 listed on this site had neither that or the negative terminal new from autozone

 

[Barrman]

You will not find any auto parts store selling an alternator with the ground terminal or the STE/ICE terminal. That is why it has already been mentioned that you should not get rid of your original alternator. It is also part of the reason I did the videos.

Thanks for referencing and watching my videos. I wrap up the alternator thing with a video about putting all the parts back in. That video will publish this coming Friday morning. July 4th.

 

[deercoker]

You will not find any auto parts store selling an alternator with the ground terminal or the STE/ICE terminal. That is why it has already been mentioned that you should not get rid of your original alternator. It is also part of the reason I did the videos.

Thanks for referencing and watching my videos. I wrap up the alternator thing with a video about putting all the parts back in. That video will publish this coming Friday morning. July 4th.

I found one on Amazon and also DB sells one, I am gonna order one and have my old one rebuilt for a spare.

 

[jcollings]

I think a 76 caddy Seville is the only alternator with an isolated ground.

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[Barrman]

Great! I wasn’t aware any were available.