Two problems related to engine noise have been reported for the 2007 Cadillac CTS. The most recently reported issues are listed below. Please also check out the statistics and reliability analysis of the 2007 Cadillac CTS based on all problems reported for the 2007 CTS.
My car was running fine. Then my engine sounded like a loud truck. No warning came. The check engine lite never went on so I stop driving it till it went to the dealership because I was going to have it towed and when I started up the car the engine blew. I bought this car with a lifetime limited powertrain warranty and it covers the engine. The warranty is good for life as long as I own the car and keep up on all maintance at a gm dealership which I did for 8 yrs. The warranty company will not cover the cost of the repair because the dealership that I bought it from closed. I called gm and they will not do anything because they stated I need to go to the warranty company. Nothing states in my warranty if the dealership closes that my warranty is invalued. That is not right I feel that gm should pay the cost of this engine because I believe my check engine lite was faulty.
Purrchased car used in 2010. While on a trip east the enine would star revving up during any tyype of accelaration. I called on-star for an analisis of what might be the problem. They ran a report while I was still driving and came back wita diagnosis of low lvel of motor oil. I told them I shhowed a level of over 20% . They said it was ok to drive home but to get an oil change as soon as I got home. This prroblem has persisted ever since,regsrdless of the oil level. I inquied about this problem on the internet and several came back with "this is common for Cadillacs and for me tostart carrying some oil in the trunk bbecause these cars of this date had no oil gauge and therefore the revving noise was the only clue ithis car would give me thar it needs oil. . So I am confused! why is there no oil gauge in this car? expecially when it is equipped with a 3. 6 high performance engine? . I don't know if this is true or not but I have been told that there was a lawsuit filed and right after the company started to install oil gauges in the newer models again. I cannot get any answers from dealers and I would like to know if there has been more of these concerns besides mine and what was the end results if any.