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  • 2 Post By A48WillyzGuy
Cadillac CTS First Generation Forum - 2003 - 2007 Discussion, Help in Cadillac CTS Coupe, Sport Sedan and Sport Wagon Forums; I have a 2003 CTS and will not start...when I turn the key it sounds as if its gonna it ...
  1. #1
    Lukkie is offline Cadillac Owners Member
    Automobile(s): 2003 cadillac cts
    Join Date
    Apr 2013


    I have a 2003 CTS and will not start...when I turn the key it sounds as if its gonna it
    crank but it dont..the motor
    shakes as if its trying to start but it don't and even when I take my hand off the key It continues to shake as if its gonna start...I have a half tank of gas by the way... PLS HELP

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  3. #2
    curtc's Avatar
    curtc is offline Cadillac Owners Master
    Automobile(s): 2006 STS V8 1SF RWD
    Join Date
    Jul 2005
    Oakdale, MN
    Crankshaft position sensor, I'd put money on it.

    Pull the trouble codes, you can do that yourself in the 03's without a scan tool.

  4. #3
    A48WillyzGuy's Avatar
    A48WillyzGuy is offline Cadillac Owners Fanatic
    Automobile(s): 2003 CTS
    Join Date
    Mar 2011
    Evansville, IN
    A crank sensor won't always throw a code, just fyi. It is a very common problem on the 3.2 though. It's a pretty safe bet.
    Kingoftypos and Kingoftypos like this.

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