We don't have a lot of Mitsubishi Endeavor AC / heater problems on file — feel free to add yours here. The most common Endeavor AC / heater problems cost $900 to fix & occur at 114,000 miles. Click on a year below.

Worst AC / Heater Problems
AC leaks into interior 2004 Mitsubishi Endeavor
interior flooding by blocked drains 2007 Mitsubishi Endeavor
moisture leaking into interior from worn seal in firewall 2005 Mitsubishi Endeavor