Heater function switch

[Sailor Bob]

I have an unco-operative selector and presently getting only Vent air unheated - doesn't matter the setting (other than def - it closes the lower heater doors but still no def).

Worked fine till today - I had a quick look around the engine comp for busted or split vacum hoses found one minor, to no avail. Had a look through the search items nothing too specific. Anyone got info?

[MikeW]

If you've got any air blowing at all the problem is in the passenger compartment. Each of the sliding controls simply actuates a damper at the other end of a cable. They should be easy for you to follow. It's possible that one of them came loose at the far end.

[sblake01]

The plastic gear that that lever moves may have broken. That happened to my 78 a few years back and I ended up replacing the whole control assembly.