Hi guys I'm taking my dash out to replace my heater core. Never had my dash out before and I'm trying to do it only once haha. The other problem I have is I only have hot or cold air. In between it will just switch to all the way hot or cold. And sometimes if I have my A/C on for awhile it will start blowing hot air? Any ideas? This has been this way since I bought the truck with only 43,000 miles on it.
2001 half ton. Oh and I'm new here so thanks for any help. Figured I could fix 2 problems while I'm behind there.