We don't have a lot of Cadillac STS engine problems on file — feel free to add yours here. The most common STS engine problems cost $2,400 to fix & occur at 81,000 miles. Click on a year below.

Worst Engine Problems
timing chains stretch 2005 Cadillac STS
rattling noise from engine 2008 Cadillac STS
accelerator got stuck 2005 Cadillac STS