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Thread: engine light coming on intermittently

  1. #1
    Brian10956 is offline Cadillac Owners Member
    Automobile(s): Cadillac
    Join Date
    Nov 2008
    Posts
    4

    engine light coming on intermittently

    I have a 2009 CTS direct injection. In the last 6 months the engine warning lamp has come and both times when the mechanics took care of it it was a new coil.(different ones) The light is coming on again but it goes off before I can get it to the shop. While it is on I noticed some hesitation in accelerating and I have also noticed that the remote start won't operate. Well again the light came on and I did not get to the shop before it went off. The remote start works again that the engine light is off.
    Does anybody have any ideas on what is the problem. I want to have it fixed before it ruins a trip.


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  3. #2
    CTSCHICK Guest

    Re: engine light coming on intermittently

    Even though the light it isn't on the previous code or codes for what ever the problem was that set the light off with be in the DTC History and depending on the code it will remain there for 10,20,40, 100 drive cycles.
    So if you take it in they will be able to view the history.
    The remote start isn't working when that happens is because of the problem that sets off the light to protect the engine.
    Last edited by CTSCHICK; 07-21-13 at 09:44 PM.

  4. #3
    Join Date
    Mar 2010
    Location
    Detroit, USA
    Posts
    12,711

    Re: engine light coming on intermittently

    Quote Originally Posted by Brian10956 View Post
    I have a 2009 CTS direct injection. In the last 6 months the engine warning lamp has come and both times when the mechanics took care of it it was a new coil.(different ones) The light is coming on again but it goes off before I can get it to the shop. While it is on I noticed some hesitation in accelerating and I have also noticed that the remote start won't operate. Well again the light came on and I did not get to the shop before it went off. The remote start works again that the engine light is off.
    Does anybody have any ideas on what is the problem. I want to have it fixed before it ruins a trip.
    Hello Brian10956,

    I apologize that you are experiencing an intermittent check engine light on your CTS. Could you provide me with the name of the dealership, your name, contact info, VIN, and mileage so I can call and discuss this concern with them? Thank you very much for your time.

    Gregory W.
    Cadillac Customer Care

  5. #4
    snerz is offline Cadillac Owners Member
    Automobile(s): 2009 CTS
    Join Date
    Mar 2012
    Posts
    2

    Re: engine light coming on intermittently

    Had a hesitation and flashing check engine light on my 2009 CTS 3.6 DI, 54,000 miles. Put in fresh plugs and bottle of Techron fuel system cleaner and problem solved.

  6. #5
    Brian10956 is offline Cadillac Owners Member
    Automobile(s): Cadillac
    Join Date
    Nov 2008
    Posts
    4

    Re: engine light coming on intermittently

    The dealer replaced the timing chain and also cleaned the fuel injectors. A week later it came on again and the catalic converter needed replacement


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