Thread: Front Dash & Floor Air Vents Blocked!

When I switch my Dial knob from front windshield defrost TO floor or TO Dash vents it wont switch...The air is just keep blowing from front windshield defrost. Plz some1 guide me where shall I start looking for a problem...my blower motor/fan is fine, resistor is fine, climate control is fine...i do not know where to look for the vacuum lines...help would be appreciated i live in canada its gonna be cold here soon...can't afford to take to the shop...but i fix cars by my self...depending if its not a huge lifting...thnx waiting for answers.... sorry for the bad English!

There is a divider in ur dash that seperats the air when u turn it on. That is mor than likely stuck open to the defrost. It happened to my 97 chevy and its a pita to change.

The vacumme line goes in through the wiring harness on the passangers side, meandering about by the top of the passangers side firewall. I replaced mu line from the engine to the controller with a piece of metal brake tubing passing in the cabin beside the automatic shifter cable 98 gtp has no reservoir for the vaccume (turnes a ~8 ft section of vacuume line into ~4 feet) in cabin is above carpet/ kickboard on passengers side of tunnel.