One problem related to brake fluid leak has been reported for the 2004 Chevrolet Trailblazer. The most recently reported issues are listed below.
Driving home from work brakes started locking up drove home took apart front an rear brakes found front calipers locked up changed calipers an brake pads front an rear tried to bleed brakes had a spongy pedal filled master cylinder an noticed brake fluid leaking under master cylinder connector behind front driver side wheel no part to fix no listing . Cannot drive car. That's just one problem transmission lines rotted an changed 2 years ago . Power steering cooler rotted out lost all power steering fluid 1 month ago an put after market cooler in . Also air conditioner lines rotted out cannot hold r34 coolant anymore.