New here with new to me CTS
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Cadillac CTS First Generation Forum - 2003 - 2007 Discussion, New here with new to me CTS in Cadillac CTS Coupe, Sport Sedan and Sport Wagon Forums; Hello all, My father in law just gave us his old car which is a 2007 CTS with ~110k miles ...
  1. #1
    GMan1039 is offline Cadillac Owners Member
    Automobile(s): 2007 CTS
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    New here with new to me CTS

    Hello all,
    My father in law just gave us his old car which is a 2007 CTS with ~110k miles and the 3.6l engine. Nice gift right? I just hope its not going to be another maintenance hog.
    I did a search and found some good info, but wanted some hints on what I need to do/look out for on this car. He said he just had it serviced, but sounds like it was only an oil and filter change not the full 100k service suggested. The car runs great, no noise, smooth idle etc. so I don't think I need to mess with the timing chain, and he said all he's ever really had done was oil changes.

    The car needs new tires, but all the fluids (that I could easily check) look good. Is there anything I need to do to make sure this car is reliable? I still need to pull the wheels and check the brakes, some say a tranny and coolant flush but the fluids look good.

    Anything else should I check/look out for?

    Thanks, G

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  3. #2
    curtc's Avatar
    curtc is offline OCD - Obsessive Cadillac Disorder
    Automobile(s): White Diamond 06 STS V8 RWD 1SF F55 HUD/ACC NAV - 130k
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    Re: New here with new to me CTS

    I would flush the coolant system if it's never been done, same with the brake fluid, and power steering at that mileage. DO NOT flush the transmission, just get it drained a refilled, heard far too many horror stories about bad transmissions after flushes. Ask your father if he noticed it ever using oil or if he ever had to top it off between changes. The differentials like to start howling after a while and the transmission cooler lines on the radiator like to break too, I'd inspect those for sure, otherwise they're pretty good cars.



    Now show us some pics of this gifted CTS!
    Ikera likes this.
    Past Cadillac's

    2004 CTS 3.6L - 2011-2012
    2001 Seville Touring Sedan - 2006-2011
    1995 Seville Touring Sedan - 2005-2006

  4. #3
    Ikera's Avatar
    Ikera is offline Cadillac Owners Fanatic
    Automobile(s): 2003 Cadillac CTS 3.2, 1990 Nissan 240sx Turbocharged
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    Re: New here with new to me CTS

    ^ what he said, pretty much covers everything
    regarding the transmission oil cooler lines, it is highly recommended to install a separate external oil cooler for 2 reasons
    - less chance of cooler lines blowing out
    - prevent coolant and transmission fluid from mixing in case of the internal failure of the radiator.

  5. #4
    curtc's Avatar
    curtc is offline OCD - Obsessive Cadillac Disorder
    Automobile(s): White Diamond 06 STS V8 RWD 1SF F55 HUD/ACC NAV - 130k
    Join Date
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    Burnsville, MN
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    Re: New here with new to me CTS

    I would also do the spark plugs if they have never been done and obviously check the air filter, oh yeah, differential fluid too.
    Past Cadillac's

    2004 CTS 3.6L - 2011-2012
    2001 Seville Touring Sedan - 2006-2011
    1995 Seville Touring Sedan - 2005-2006

  6. #5
    GMan1039 is offline Cadillac Owners Member
    Automobile(s): 2007 CTS
    Join Date
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    Re: New here with new to me CTS

    I haven't checked the diff fluid yet will wait until we move into our new house and I have a shop lift. So these have a common trans cooler and radiator?
    I will keep an eye on it burning oil, the FIL said he never noticed it, but I doubt he ever actually checked.

    Things to do after we move next month:
    Check diff fluid,
    Flush Radiator and check all coolant lines,
    New Plugs, K&N Filter

  7. #6
    curtc's Avatar
    curtc is offline OCD - Obsessive Cadillac Disorder
    Automobile(s): White Diamond 06 STS V8 RWD 1SF F55 HUD/ACC NAV - 130k
    Join Date
    Jul 2005
    Location
    Burnsville, MN
    Age
    29
    Posts
    5,554

    Re: New here with new to me CTS

    No need for the K&N filter, the regular pleated paper filters can provide amble air for the motor, just $$$ down the drain.
    Past Cadillac's

    2004 CTS 3.6L - 2011-2012
    2001 Seville Touring Sedan - 2006-2011
    1995 Seville Touring Sedan - 2005-2006

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