Upgrade/ Alternator replacement 1993 ETC N*
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Cadillac Seville / Cadillac Eldorado Forum Discussion, Upgrade/ Alternator replacement 1993 ETC N* in Past Cadillac Vehicle Discussion; I know that the vehicle calls for a 140 amp alternator when it does not have the heated windshield but ...
  1. #1
    Tankboy40's Avatar
    Tankboy40 is offline Cadillac Owners Fanatic
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    Question Upgrade/ Alternator replacement 1993 ETC N*

    I know that the vehicle calls for a 140 amp alternator when it does not have the heated windshield but what I would like to do is install the 200 amp alternator that I can purchase from SummitRacing.

    http://www.summitracing.com/parts/mci-n8127-11

    My car has one wire that comes off the side of the alternator (plug in)

    This replacement alternator apparently has 2 wires coming out of the plug.

    I've upgraded the grille with one from a 99 (fit perfectly) and am in the process of installing the black interior (from headliner to carpeting) from the 99 and the only issue I have run into so far has been the need to swap out the wiring harness from the 93 into the 99 drivers seat.

    The other issue I'm facing is re-pinning the rear plug-in for the headliner (which will now give me the buuilt in garage door opener and the compass mirror.)

    The door panels from the 99 were pretty much plug-n-play as well, I did have to use the power door lock switch from the 93 in the 99 housing.

    All that aside, I'd really like the 200 amp alternator so that I can install a nice rich sound system using the factory head unit (non-bose)

    Please help

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  3. #2
    basscatt's Avatar
    basscatt is offline Cadillac Owners 10000+ Posts
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    Re: Upgrade/ Alternator replacement 1993 ETC N*

    Quote Originally Posted by Tankboy40 View Post
    I know that the vehicle calls for a 140 amp alternator when it does not have the heated windshield but what I would like to do is install the 200 amp alternator that I can purchase from SummitRacing.

    http://www.summitracing.com/parts/mci-n8127-11

    My car has one wire that comes off the side of the alternator (plug in)

    This replacement alternator apparently has 2 wires coming out of the plug.

    I've upgraded the grille with one from a 99 (fit perfectly) and am in the process of installing the black interior (from headliner to carpeting) from the 99 and the only issue I have run into so far has been the need to swap out the wiring harness from the 93 into the 99 drivers seat.

    The other issue I'm facing is re-pinning the rear plug-in for the headliner (which will now give me the buuilt in garage door opener and the compass mirror.)

    The door panels from the 99 were pretty much plug-n-play as well, I did have to use the power door lock switch from the 93 in the 99 housing.

    All that aside, I'd really like the 200 amp alternator so that I can install a nice rich sound system using the factory head unit (non-bose)

    Please help
    ----------------------------------
    unless you are going to put in a giant amp of some sort -
    you don't need a giant alternator -

  4. #3
    Tankboy40's Avatar
    Tankboy40 is offline Cadillac Owners Fanatic
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    Re: Upgrade/ Alternator replacement 1993 ETC N*

    Quote Originally Posted by basscatt View Post
    ----------------------------------
    unless you are going to put in a giant amp of some sort -
    you don't need a giant alternator -
    Thats not what I asked. I will put the "giant" alternator in because I want to.

    Now, I ask again, Does anyone know what I would have to do to make the 200 amp alternator work ?

  5. #4
    stoveguyy is offline Cadillac Owners Connoisseur
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    Re: Upgrade/ Alternator replacement 1993 ETC N*

    you found a high output alternator that fits in the northstar mounting location? not that an alternator housing is high tech or anything. you just bolt it on. so you do know that your new unit will fit? do you have it?

  6. #5
    Tankboy40's Avatar
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    Re: Upgrade/ Alternator replacement 1993 ETC N*

    i believe I found the right one. the Eldorado's (from what I've found) with the heated windshields use a 200 amp alternator.

    I dont doubt that it will fit the N* mounting location (considering its a N* option)

    I'm just wondering if it has a 1 wire plug or 2 wire plug.

    If it HAS a 2wire plug, where does the other wire go?

    I was hoping someone else has done this before.

    If not, I'll be the first and report back how it goes.

  7. #6
    stoveguyy is offline Cadillac Owners Connoisseur
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    Well, the limo cars had a dual alternator setup. That would be cool

  8. #7
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    Re: Upgrade/ Alternator replacement 1993 ETC N*

    Here, w/heated windshield..
    Attached Images

  9. #8
    X-Hibition is offline Cadillac Owners Member
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    Re: Upgrade/ Alternator replacement 1993 ETC N*

    Tankboy, you have said both that the 200 amp alt has a two wire and a one wire connection. Which is true and how did you verify that?

    I went to Summit and looked at the two, 140 & 200 amp, choices for your 1993. When I went to Rock Auto they show different alts for the with or without heated windshield but both are listed at 140 amp. Inconsistent, yes, but you can't always trust catalogs.

    Best bet, call Summit and request someone pull the alt and verify connector. And if it is two, not one, then get a wiring schematic and answer your own question. Or wait and someone else may have the answer. Good luck.

    ----------

    This is what I saw on Summit

    http://www.summitracing.com/search/y...and-generators

  10. #9
    scott f's Avatar
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    My 94 has the heated windshield c/w 140a generator...that's what was factory installed

  11. #10
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    Re: Upgrade/ Alternator replacement 1993 ETC N*



    ok... I'll let you know how it works out.

  12. #11
    stoveguyy is offline Cadillac Owners Connoisseur
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    Why does the pic of alt have multiple connectors? My small alt wire broke and caused much grief till I replaced plug. I looked at a few junkyard cars and most had a 4 pin plug with some cars having 2-3 wires. Not all were same. Never saw a 1 wire setup

  13. #12
    Tankboy40's Avatar
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    Re: Upgrade/ Alternator replacement 1993 ETC N*

    Quote Originally Posted by stoveguyy View Post
    Why does the pic of alt have multiple connectors? My small alt wire broke and caused much grief till I replaced plug. I looked at a few junkyard cars and most had a 4 pin plug with some cars having 2-3 wires. Not all were same. Never saw a 1 wire setup
    Not sure, mine only has 1 wire coming out of the plug (its a '93 w/o heated w/s and IS OBD-I)

    My 99 ESC OBD-II has 2 wires coming out of the plug.

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