2001 STS will not start after car Driving .
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Cadillac Seville / Cadillac Eldorado Forum Discussion, 2001 STS will not start after car Driving . in Past Cadillac Vehicle Discussion; Hi Could use some Help. After driving 20 miles or so. If I turn car off will motor will not ...
  1. #1
    PeterS is offline Cadillac Owners Member
    Automobile(s): 2001 (Seville) STS
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    2001 STS will not start after car Driving .

    Hi

    Could use some Help.
    After driving 20 miles or so. If I turn car off will motor will not turn over.
    All Lights come on. If I waite 10 min. car then starts.

    What could it be?

    Thank You
    Pete

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  3. #2
    MoistCabbage's Avatar
    MoistCabbage is offline Cadillac Owners 10000+ Posts
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    Doesn't turn over?

    Does it crank and not start? Or not crank at all?

  4. #3
    PeterS is offline Cadillac Owners Member
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    Re: 2001 STS will not start after car Driving .

    Hi

    Thank You.

    No motor does not crank. But all the lights come on . Seat goes into Memory Mode.

  5. #4
    basscatt's Avatar
    basscatt is offline Cadillac Owners 10000+ Posts
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    Re: 2001 STS will not start after car Driving .

    check for Diagnostic Trouble Codes -

    if you don't know how - go here and read the ENTIRE post -

    http://www.cadillacforums.com/forums...odes-dtcs.html

    if you have any codes - post them here -
    ALONG WITH THEIR DEFINITIONS -

  6. #5
    PeterS is offline Cadillac Owners Member
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    Re: 2001 STS will not start after car Driving .

    Thank You.
    I will go and check.

    ----------

    Hello
    Here are the codes that came up.

    C1287
    C1288

    U1064
    U1255
    U1016
    U1096
    Volts 9 Below=B1327
    B1328 = Volts Above 15
    B1016

    Please Help Tell me about the Codes.

    Thank You
    Pete

  7. #6
    Ranger's Avatar
    Ranger is offline Cadillac Owners Member
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    Re: 2001 STS will not start after car Driving .

    Reread post #4.

    How old is your battery?

  8. #7
    basscatt's Avatar
    basscatt is offline Cadillac Owners 10000+ Posts
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    Re: 2001 STS will not start after car Driving .

    Quote Originally Posted by PeterS View Post
    Thank You.
    I will go and check.

    ----------

    Hello
    Here are the codes that came up.

    C1287
    C1288

    U1064
    U1255
    U1016
    U1096
    Volts 9 Below=B1327
    B1328 = Volts Above 15
    B1016

    Please Help Tell me about the Codes.

    Thank You
    Pete
    -------------------------
    Please Help Tell me about the Codes.
    within the link I supplied -
    is a link to a site that lists all the codes - AND THEIR DEFINITIONS -

  9. #8
    PeterS is offline Cadillac Owners Member
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    Re: 2001 STS will not start after car Driving .

    I only have the car for a year,bought it used.
    I do not know how old Battery is.
    ?
    The U codes I hear are nothing to worry about. The C Codes are about Steering.

    The B1327 and B1328 has to do with Volts. One says Volts fell below 9 volts the other say Volts went above 15 Volts.

    Do not understand. Could it be the Altantor?

    Please advise.
    Thank you
    Pete

  10. #9
    Ranger's Avatar
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    Re: 2001 STS will not start after car Driving .

    I'd use a DVM to test the battery voltage, both static and while cranking (load test). If you don't have a DVM or don't know how, take it to an auto parts store and have them do it.

  11. #10
    basscatt's Avatar
    basscatt is offline Cadillac Owners 10000+ Posts
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    Re: 2001 STS will not start after car Driving .

    Quote Originally Posted by PeterS View Post
    I only have the car for a year,bought it used.
    I do not know how old Battery is.
    ?
    The U codes I hear are nothing to worry about. The C Codes are about Steering.

    The B1327 and B1328 has to do with Volts. One says Volts fell below 9 volts the other say Volts went above 15 Volts.

    Do not understand. Could it be the Altantor?

    Please advise.
    Thank you
    Pete
    -------------------------
    it COULD be a lot of things -

    the battery would be on the top of my list -
    you should have it load tested -

  12. #11
    PeterS is offline Cadillac Owners Member
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    Re: 2001 STS will not start after car Driving .

    Hi

    Good Idear.

    I can have it checked for free at Autozone.

  13. #12
    basscatt's Avatar
    basscatt is offline Cadillac Owners 10000+ Posts
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    Re: 2001 STS will not start after car Driving .

    Quote Originally Posted by PeterS View Post
    Hi

    Good Idear.

    I can have it checked for free at Autozone.
    --------------------
    I can have it checked for free at Autozone.
    and if it DOES test bad -
    DO NOT GET A BATTERY FROM AUTOZONE -

  14. #13
    PeterS is offline Cadillac Owners Member
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    Re: 2001 STS will not start after car Driving .

    Hi


    I could take it to a repair station and Buy a Interstate Battery.
    What Battery would You Buy?
    Thank You
    pete

  15. #14
    basscatt's Avatar
    basscatt is offline Cadillac Owners 10000+ Posts
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    Re: 2001 STS will not start after car Driving .

    Quote Originally Posted by PeterS View Post
    Hi


    I could take it to a repair station and Buy a Interstate Battery.
    What Battery would You Buy?
    Thank You
    pete
    ------------------------------
    you can have AZ TEST it - just don't buy one from them -

    I buy Walmart batteries -

    the group 79 MAXX is the one for your car -

  16. #15
    N*Caddy's Avatar
    N*Caddy is offline Cadillac Owners Master
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    Re: 2001 STS will not start after car Driving .

    I just replaced my battery last Saturday. I had enough, every cold day in winter was sure dead battery, I bought a battery charger (more expensive than the actual battery), probably I end up using it 10 to 15 times over the winter (and even last winter it had problems once or twice). When the weather got warmer I finally was able to put it away until last week when I had to move the car out of the garage and open close doors/trunk several times during the day. In the eve when I was to drive the car back in the garage, totally dead battery! I was in denial, cannot be is less than 3 years old battery and is AcDelco. This battery was a warranty replacement for the previous AcDelco that lasted only 1 year (if so). The shop discovered they installed originally a smaller battery than required. And that battery was to replace the Interstate I had before replacing the original AcDelco battery and this Interstate was good for only 3 years (I blame it on being an Interstate) as the original AcDelco was good for almost 8 years.
    So I have never bothered to check the battery type, I just made sure is AcDelco (what I paid for) and that's it.
    Well this time I bought the battery myself from the dealer parts counter (not going to a shop) and I kind of notices is a bit larger than I was expecting. When I replaced the battery, clearly the old one was smaller so I checked the label, it was a freakin' group 75 6YR battery instead of 78 7YR (what is required for my car). I don't even want to think what was the previous battery (I clearly remember it was significantly smaller than the group 75 one).
    So now thinking back, maybe there was a reason why I had to replace the alternator 3 times after the original battery was gone.

    So hint, hint...really pay attention to what battery you get. A '98+ Seville takes group 79 AcDelco, that is in case you diagnose a bad battery and not a loose ground or corroded battery terminals.

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