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2006 sts 3.6 liter

  1. 2006 STS rough idle

    Cadillac STS Forum 2005 through 2012
    I have replaced timing chain, camshaft position sensor, starter relay, battery. It has not ran correctly since we had to replace timing chains. Once it starts it runs very rough it jumps and spits and sputters once it warms up it will start running and sounding smooth then it starts spitting and...
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