We don't have a lot of Chevrolet Trailblazer EXT engine problems on file — feel free to add yours here. The most common Trailblazer EXT engine problems cost $2,000 to fix & occur at 103,000 miles. Click on a year below.

Worst Engine Problems
intake valve failure 2005 Chevrolet Trailblazer EXT
excessive oil consumption 2006 Chevrolet Trailblazer EXT
check engine light 2005 Chevrolet Trailblazer EXT