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Thread: 2010 Cts Engine Power Reduced

  1. #1
    Join Date
    Jun 2013
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    2010 Cts Engine Power Reduced

    Was just wondering if anyone had any insight on the following issue. 2010 3.6 Apprx. 95k miles. Noticed AC fan louder than normal last few days was taking to mechanic on Monday. Last night received a message engine hot turning off AC. A few moments later message read Engine Hot Engine idle coasted to side of road and added water message this morning is reduced power? Any ideas?


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  3. #2
    tinman's Avatar
    tinman is online now Cadillac Owners Master
    Automobile(s): '14 CTS-V Long Roof 6MT; '10 CTS Long Roof, '16 ATS-V Sedan
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    Re: 2010 Cts Engine Power Reduced

    water pump.

  4. #3
    Join Date
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    Quote Originally Posted by tinman
    water pump.
    Thank you

  5. #4
    tinman's Avatar
    tinman is online now Cadillac Owners Master
    Automobile(s): '14 CTS-V Long Roof 6MT; '10 CTS Long Roof, '16 ATS-V Sedan
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    Re: 2010 Cts Engine Power Reduced

    You're welcome. Just a reasonable guess - there could be other issues. When you said, "...engine hot, turning off a/c, then engine hot (!) there seems to me to be no/inadequate cooling. Then you had to add water (distilled it should be). Maybe a cracked block or head gasket or something like that where the coolant has escaped. Maybe the overflow reservoir tank is cracked or a leaky hose (much easier to fix and much less cost). It is (to me) a coolant issue of sorts.

  6. #5
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    Re: 2010 Cts Engine Power Reduced

    Quote Originally Posted by chasemegan View Post
    Was just wondering if anyone had any insight on the following issue. 2010 3.6 Apprx. 95k miles. Noticed AC fan louder than normal last few days was taking to mechanic on Monday. Last night received a message engine hot turning off AC. A few moments later message read Engine Hot Engine idle coasted to side of road and added water message this morning is reduced power? Any ideas?
    Hello chasemegan,

    I apologize that you are experiencing an issue with your CTS and its engine. I do see you are taking it to a mechanic, but I wanted to extend my assistance to you if you were going to work with the dealership. If that is the route you would like to pursue, please private message me your name, contact info, VIN, mileage, and dealership you would like to work with. I see you are a new member to the forum, if you are not able to private message, you can also email me at socialmedia@gm.com. Please include “ATTN GREG” in the subject line so it gets delivered straight to me. Thank you very much for your time.

    Gregory W.
    Cadillac Customer Care


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