2003 Deville Not Starting Sometimes
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Cadillac DeVille 1985 to 2005 including:
1985-1992 Fleetwood, 1993 Sixty Special, All FWD Forum Discussion, 2003 Deville Not Starting Sometimes in Past Cadillac Vehicle Discussion; I just started having this problem yesterday. This isn't a video of my car but it is basically the same ...
  1. #1
    CRANK is offline Cadillac Owners Member
    Automobile(s): 2003 Deville Mary Kay Edition
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    2003 Deville Not Starting Sometimes

    I just started having this problem yesterday. This isn't a video of my car but it is basically the same problem that I am having. I turn the key and all the dials on the dash shut off and nothing happens. The car will eventually start after trying to turn it on several times. The battery voltage is resting at about 12.5v and when I turn the key I here a click coming from the fuse box under the backseat. I tried the wd40 trick that someone else wrote about in an older thread but that didn't help fix the problem.

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  3. #2
    Ranger's Avatar
    Ranger is offline Cadillac Owners Member
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    Re: 2003 Deville Not Starting Sometimes

    When you do get it running, pull the DTC's. Post them AND their definitions.

  4. #3
    basscatt's Avatar
    basscatt is offline Cadillac Owners Master
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    Re: 2003 Deville Not Starting Sometimes

    could be many things -

    defective ignition switch -
    a security problem -
    defective starter solenoid -
    loose wire at the starter solenoid -
    bad starter relay -
    neutral safety switch -

    begin by checking for 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 -

  5. #4
    CRANK is offline Cadillac Owners Member
    Automobile(s): 2003 Deville Mary Kay Edition
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    Re: 2003 Deville Not Starting Sometimes

    DTC C0660 Level Control Exhaust Valve Circuit Malfunction (Says "Current" on dash)

    History:
    DTC B0041 LF/Driver Side Deployment Loop Open
    DTC B0065 LF/Driver Pretensioner Deployment Loop Open
    DTC B1327 Device Power Circuit Low
    DTC B3055 Key Not Present

  6. #5
    basscatt's Avatar
    basscatt is offline Cadillac Owners Master
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    Re: 2003 Deville Not Starting Sometimes

    Quote Originally Posted by CRANK View Post
    DTC C0660 Level Control Exhaust Valve Circuit Malfunction (Says "Current" on dash)

    History:
    DTC B0041 LF/Driver Side Deployment Loop Open
    DTC B0065 LF/Driver Pretensioner Deployment Loop Open
    DTC B1327 Device Power Circuit Low
    DTC B3055 Key Not Present
    --------------------------
    DTC B3055 Key Not Present
    seems as though - the system doesn't recognize your key -

    do you have another ignition key?

  7. #6
    CRANK is offline Cadillac Owners Member
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    Re: 2003 Deville Not Starting Sometimes

    I tried a spare key and it still happens. I had the dealership change the ignition switch about a year ago. The reason I had it changed a year ago was because the key wouldn't turn to the on position. I have a feeling that is why it shows up in history. I cleared all the codes so I can drive the car if I am able to turn it on to check if the same codes are generated.

  8. #7
    Ian-STS99 is offline Cadillac Owners Fanatic
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    Re: 2003 Deville Not Starting Sometimes

    Hmmm ! I might be wrong, but that looks like a classic battery problem, get the battery check out, it might be time for a new one.

  9. #8
    basscatt's Avatar
    basscatt is offline Cadillac Owners Master
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    Re: 2003 Deville Not Starting Sometimes

    Quote Originally Posted by Ian-STS99 View Post
    Hmmm ! I might be wrong, but that looks like a classic battery problem, get the battery check out, it might be time for a new one.
    -------------------------------------
    this - from the first thread -
    The battery voltage is resting at about 12.5v

  10. #9
    SUPER LAC DEVILLE's Avatar
    SUPER LAC DEVILLE is offline Cadillac Owners Enthusiast
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    Helped a lady today

    Her car did the same Exact thing

    Had power for lights and bells but no turn over

    I Hooked up jumper cables and gave her some SuperLac Juice

    Started right up

    Older Deville tho, Pre Northstar

    Maybe u need battery charge ???

  11. #10
    Ranger's Avatar
    Ranger is offline Cadillac Owners Member
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    Re: 2003 Deville Not Starting Sometimes

    You could rule out the battery buy simply swapping out the battery with a known good one for a test.

  12. #11
    basscatt's Avatar
    basscatt is offline Cadillac Owners Master
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    Re: 2003 Deville Not Starting Sometimes

    Quote Originally Posted by SUPER LAC DEVILLE View Post
    Helped a lady today

    Her car did the same Exact thing

    Had power for lights and bells but no turn over

    I Hooked up jumper cables and gave her some SuperLac Juice

    Started right up

    Older Deville tho, Pre Northstar

    Maybe u need battery charge ???
    -------------------------
    Helped a lady today -

    so - you JUMPED a little old lady -

    you're such a NICE boy -

  13. #12
    97DevilleConcours is offline Cadillac Owners Member
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    Re: 2003 Deville Not Starting Sometimes

    I had the same problem with my 2003 Deville when I first bought it. I could start the car, but eventually it took more and more cranks, then only would start-up from a boost.

    The problem was the car's new battery, WASN'T THE SPECIFIC BATTERY FOR THE CAR. The mechanic I bought the car from figured he could put any ol' battery under the back seat. The specific battery for a 2003 Deville is about a 1ft and 1/2 long and has ports to connect 2 small rubber tubes (under the seat) to vent any battery gases from collecting under the back seat.

    The car ran fine for about a week with the wrong new battery, but eventually the voltage wasn't enough. If I remember correctly, when watching the voltage meter it seemed to be fine, but there was a noticeable voltage drain during start-up. This got me to believe the alternator wasn't charging the batter properly, but when I took it in to be serviced the mechanic told me the car requires such a big unique battery because of the many computer systems on board.

    Within a couple of weeks the starter went too, and maybe that was due to the fact I neglected to fix this battery problem. Hope this helps!

  14. #13
    Ian-STS99 is offline Cadillac Owners Fanatic
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    Re: 2003 Deville Not Starting Sometimes

    Quote Originally Posted by basscatt View Post
    -------------------------------------
    this - from the first thread -
    The battery voltage is resting at about 12.5v
    I had the same problem, battery was resting at 12.4v, but the amps was not there to turn over the starter, a new battery solved the problem.

  15. #14
    SUPER LAC DEVILLE's Avatar
    SUPER LAC DEVILLE is offline Cadillac Owners Enthusiast
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    Quote Originally Posted by basscatt
    -------------------------
    Helped a lady today -

    so - you JUMPED a little old lady -

    you're such a NICE boy -
    Woooooow!!!! Lol.

    But Yes

    And When that old Deville started up I was a bit impressed with the sound of that engines rumble

  16. #15
    CRANK is offline Cadillac Owners Member
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    Re: 2003 Deville Not Starting Sometimes

    I am taking the battery to sears today for a diagnostic. It is a DieHard Gold Automotive Battery - Group Size 79 http://www.sears.com/diehard-gold-au...2&blockType=G2 The good news is the battery is under warranty. I will post the results after

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