Air duct control valve

ROGER

MEMBER
2003 CHEVROLET SUBURBAN
V8
2WD
AUTOMATIC
111,000 MILES

Without removing the entire dashboard, how do you repair the device/mechanisum that diverts the air from the defroster to the floor to the vent, in a 2003 Chevrolet Suburban 1500.

Thursday, December 16th, 2010 AT 2:03 AM

7 Replies

MHPAUTOS

MECHANIC
31,937 POSTS

With out being able to view the exact problem I can't tell, but normally this will be a major undertaking, have you inspected the operation mechanism as yet, can you see what is broken or malfunctioning?

Mark (mhpautos)

SPONSORED LINKS

Was this

answer

helpful?

Yes

Thursday, December 16th, 2010 AT 2:15 AM

ROGER

MEMBER
4 POSTS

I have had it to a chevy dealer and they have said that it will be $1,000 to take the dash out and reattache or replace the controllers that divert the air between the vent, defrost, and floor ducts.
I don't have $1,000.

Was this

answer

helpful?

Yes

Thursday, December 16th, 2010 AT 3:54 AM

MHPAUTOS

MECHANIC
31,937 POSTS

I cant see any short cuts for this, sorry.

Mark (mhpautos)

Was this

answer

helpful?

Yes

Thursday, December 16th, 2010 AT 6:43 AM

ROGER

MEMBER
4 POSTS

The blend defrost actuators are stuck in the defrost position and will not move into the vent, or heat or combination position.

Was this

answer

helpful?

Yes

Friday, December 17th, 2010 AT 10:33 PM

WRENCHTECH

MECHANIC
20,761 POSTS

Look under the dash from the driver's side and you will see the actuator at the left end of the HVAC housing. I'm not saying you will be able to fix anything from there but you might get it unjammed.