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Why is my '03 Cadillac CTS rumbling? Urgent: Please Help!?

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  • Why is my '03 Cadillac CTS rumbling? Urgent: Please Help!?


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Answer #1 | 15/12 2013 18:52
Misfire?? What code is set because of the Check Engine Light?? Why would you go back in years on a car?? 2003 was the worst cat to have bought, I hope you don't have the 3.2L engine. They are a POS!!! Old Catera engines Well if it is a misfire, you could destroy the cat converter if you have a coil that is bad & not firing. but need to know what code has set
Answer #2 | 16/12 2013 08:16
If you are lucky enough to have the NorthStar engine then maybe you have blown a head gasket. Otherwise, you have probably destroyed an engine. A 10 year old car with on 46k miles is likely derteriorated badly from sitting around all the time.

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