Vents not working

JOE THE MARINE · 2020-05-02T07:35:05+00:00

Just replace heater core, now where the heat comes out on the floor, it always seems as if hot air is always coming out the vents , both sides of the floor. The switches for the heat is off and I can't figure out way this is doing this, is this some kind of pollution where the air has to come out all the time? The temperature here is in the 60 degree mark, but the floor vent blowing the hot air makes my drivers side foot feel like its on fire. Can you help me on this issue please. Thanks

2002 CHEVROLET BLAZER

178,000 MILES • 4.3L • 6 CYL • 4WD • AUTOMATIC

Repair Safety Notice: This information is for general instructional purposes only. Vehicle repair can be dangerous. Verify all information, follow manufacturer service procedures, use proper tools and safety equipment, and consult a qualified repair shop when needed.

DALSCWB1

MEMBER
1 POST

the air comes out when on floor and defrost just not the vents

Dec 29, 2020 at 8:58 AM (Merged)

DOCFIXIT

AUTOMOTIVE REPAIR CONTRIBUTOR
18,828 POSTS

May have lost vaccum to select switch and it is in default mode. Look for any vac line broken from engine. If none pull out control head verify vac to switch.

Dec 29, 2020 at 8:58 AM (Merged)