2005 CTS 3.6 has intermittent starting problems.
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  • 1 Post By Mandrake
Cadillac CTS First Generation Forum - 2003 - 2007 Discussion, 2005 CTS 3.6 has intermittent starting problems. in Cadillac CTS Coupe, Sport Sedan and Sport Wagon Forums; I am having some starting issues with a 2005 CTS I bought used. Brand new battery. Every once in a ...
  1. #1
    BryanGreen is offline Cadillac Owners Member
    Automobile(s): 2005 CTS
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    2005 CTS 3.6 has intermittent starting problems.

    I am having some starting issues with a 2005 CTS I bought used. Brand new battery. Every once in a while you go to start it and nothing happens. All dash lights and radio work. This an intermittent problem. Twice, I had it towed to an auto electric shop after trying to start it for an hour while I was stuck. Both time I called th shop and they said " The tow truck driver started it right up and drove it off the bed, and we can't get it to not start!

    Sometimes I couldn't start it, then an hour or two later I try it and it starts right up and will continue to do so for a few weeks without a problem. Today, not so. Once I moved it into neutral, I heard a strange scraping noise but it started. Today, not so. Then moving the automatic shifter into park, it locked there.
    Anybody have any other ideas? Could a theft sensor be blocking? It kind of acts like it would it if you left it in drive and tried to start it.


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  3. #2
    mvance59 is offline Cadillac Owners Member
    Automobile(s): 2004 CTS
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    Re: 2005 CTS 3.6 has intermittent starting problems.

    I was having the same issues on a 2004 CTS and happened upon a old factory recall concerning the ecm on all 2004 and some
    2005 models with the 3.6 litre engine. After contacting the local Caddy dealer I took my car in yesterday and after failing to reprogram the ecm, they replaced it. NO CHARGE!! This is a 9 year old car with 135000 miles mind you. So you need to contact a cadillac dealer to see if the recall repair was ever done. In my case it had not. The recall number is 05524 and is for a ecm reprogram.
    You will need the VIN number for the dealer to look it up on their database. Trust me, Without attention this problem will only
    get worse. MY car had gotten to the point that it wouldn't start at all without jumping the starter relay. After the repair it has started every time. Keeping my fingers crossed.

  4. #3
    tebok is offline Cadillac Owners Member
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    Re: 2005 CTS 3.6 has intermittent starting problems.

    Did you have any luck solving this issue? I am having the same problems with my 2006 CTS which also has a 3.6L V6 (manual). Every day it's hit or miss. Turn key to "on", all lights, stereo, etc. come on. Turn yey to "start" and depress clutch. Sometime it fires up, sometimes the clutch has to depressed 3 times. Sometimes the process has to be repeated a number of times making for an embarrassing 2-3 minutes.

    I called the dealer today and they said the previously mentioned code 05524 was a bulletin and any reprogram or more would not be addressed without payment.

    Any input is much appreciated.

  5. #4
    Argent is offline Cadillac Owners Member
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    Re: 2005 CTS 3.6 has intermittent starting problems.

    Will it start in neutral, without depressing the clutch?

  6. #5
    tebok is offline Cadillac Owners Member
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    Re: 2005 CTS 3.6 has intermittent starting problems.

    No, it will not start in neutral without the clutch depressed.

  7. #6
    tebok is offline Cadillac Owners Member
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    Re: 2005 CTS 3.6 has intermittent starting problems.

    Bump. Does anyone have any suggestions on this starting issue?

  8. #7
    Mandrake's Avatar
    Mandrake is offline Cadillac Owners Fanatic
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    Re: 2005 CTS 3.6 has intermittent starting problems.

    It sounds like a bad starter solenoid. You should probably just change the whole starter.

  9. #8
    tebok is offline Cadillac Owners Member
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    Re: 2005 CTS 3.6 has intermittent starting problems.

    That's the thing. When it clicks, it fires right up. The starter has plenty of punch.

  10. #9
    Mandrake's Avatar
    Mandrake is offline Cadillac Owners Fanatic
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    Re: 2005 CTS 3.6 has intermittent starting problems.

    Here's an animation that might explain it better:
    mnzfe.gif

    If that solenoid isn't engaging, the starter can't start the engine. The starter motor could be fine itself but the solenoid isn't engaging.
    drknt03 likes this.

  11. #10
    tebok is offline Cadillac Owners Member
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    Re: 2005 CTS 3.6 has intermittent starting problems.

    Great input. Thanks for the visual.

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