why does heater blow hot air then turn to cool air on inside of car?
Feb 25, 2008 at 10:19 AM
BMRFIXIT
✓Experienced Mechanic
19,053 POSTS
check coolant level and adjust as needed
also you may need to have the heater core flushed too
if you are to flush the heater core check if you have a bypass line because that need to be plugged as you doing the flush good luck