I can hear blower motor running but zero hot air comes out
SHREDDER69
MEMBER
1994 CADILLAC STS
V6
2WD
AUTOMATIC
75,000 MILES
The front and rear defroster also blows only cold air. What could this possibly be?
Saturday, November 30th, 2019 AT 1:52 PM
1 Reply
ASEMASTER6371
MECHANIC
52,797 POSTS
Good afternoon.
The first thing I would do is check the cooling system. Make sure the coolant is getting hot. Make sure the hoses are hot at the heater core where the hoses come through the firewall.
Can you hear the blend door in the dash move back and forth when you change from heat to cold?