cant switch vent

[chris15706]

The air always comes out of my top vents. I cant switch it to the floor or anything else. Any ideas?

[kenwood guy]

put on the air conditoner switch it then see what happens

[chris15706]

I can switch from ac to heat but everything blows on my face no matter what.

[kenwood guy]

whoops I mean turn on the air condioner while its on switch the vent and see what happends

[chris15706]

It doesnt matter what i do. It still only comes out the front vents. I was thinking maybee a hose was disconnected but i looked under there and everything seems to be fine.

[Fractured1]

Check the vacuum ball mounted on your hood, make sure the lines are attached and not cracked..

[chris15706]

Originally Posted by Fractured1

Check the vacuum ball mounted on your hood, make sure the lines are attached and not cracked..

Im sure i could find it if i looked long enough but what does it look like? Its one of those things i have never messed with. If everything checks out ok there, any other suggestions?

[dmbrisket 51]

yeah, anything ever been spilled into the vent such as candy or pop (soda for all of you non michiganders)

[chris15706]

Well im from Arkansas and we call everything coke. Doesnt make any sense does it... Anyways, i havent spilled anything down there. Im wondering if maybee there is a switch or fuse under the hood that has gone out. I just figured that there was someone else out there with a similar problem. Any input helps...

[Mikado14]

Do you think you could post the year of your vehicle? Not every Blazer uses vacuum to control the vents.

[chris15706]

2000 s-10 2.2 4cyl

[BlazerLT]

Vaccum leak, check all vacuum lines going to the control panel all the way to the vacum ball in the engine bay.

[PEPSIGIRL]

Hi I have a 99 Lumina and mine does the same almost except it blows under the dash by the floorboard and it seems to change when i brake??

[BlazerLT]

Vacuum leak.

You brakes run off of vacuum too.

You need to trace all vacuum lines and check for leaks and splits.