0
Why do you not have air flow from the dash vents on a 2002 Mercury Sable when the defrost and floor vents work fine?
Wiki User
∙ 16y ago
Your most likely issue is a bad hvac control switch. On older cars, this was operated by vacumm pressure, but on a 2002, it is all electrical. It may be that you need to replace the whole control unit.
Wiki User
∙ 16y ago
Add your answer:
Earn +20 pts
Why heat blows out vents only not defrost or floor?
Most likely a bad or disconnected vacuum hose to the defrost/floor selector in the heater ducting.
Why do i have a Burnt oil smell through defrost vents in a 2002 Sable?
FIND A PERSON WHO KNOWS A HOUSE CHECKER OR SOMTHING
Why doesn't heat blow out floor only?
the heat blows out the defrost when it should blow out floor vents only
Why does Air conditioner work on defrost only and no front vents or floor?
Vacuum leak
Why do you get hot air at floor and defroster vents but only cold air at the dash vents vents in a 1995 chevyvan 20?
the middle vents only supply air from the ac unit using a separate in dash fan. the floor and defrost vents come only from the heater
Why does my air only blows out my front vents and not the floor or defrost on your 03 dodge ram?
There may be several reasons why the air only blows out the front vents and not on the floor or the defrost on the 2003 Dodge Ram. The fuses may be blown, or the heating coil is not working correctly.
04 Chevy trailblazer why don't defrost and floor vents work but not face vents?
The mode door actuator has failed. We have instructions for repair at www.trailvoy.com
Why won't the dash vents work in my 95 Chevy Camaro but floor vent and defrost vent work fine?
the ducts can not be hooked up for the vents to work
Why won't the dash vents work on my 1995 Chevy Camaro but floor vents and defrost vent work fine?
When there is a problem with the vent system it dfaults to the defrost setting. Sounds like you have a problem in the doors that direct the air flow.
...when you turn on your AC in your 1996 Jeep Cherokee and cold air only comes out of defrost and floor vents instead of your main vents. How do you fix?
you need to replace the vacuum.
Why does a 2003 Crown Vic with auto temp control blow heat and ac from the defrost and floor vents but no air through the dash vents?
Because the air selector died.
Air vents on your 2005 f-250 6.0 diesel blow only out defrost ports and not from vent or floor What is going on?
you have a vacuum leak. defrost is the default when a vacuum leak is present.
