a/c question

my ac vents that point to the front will not blow, when the switch is set on the front. it still comes out of the side vents, floor and defrost. do i just have a bad switch or could it be a vacume line that came off?

What year truck is it? If it’s a 88-94, your vents are electric motor controlled. Infact, if u take out the stereo in that car, u will see the vent that needs to open directly behind it.

it is a 95. i just took it for a ride and the vents started working again. any idea what could be causing this?

check for a cracked vacuum line, im not sure tho if the 95's use vacuum to control the flaps, if its electric tap the motor, somtimes they get stuck.