A/C Heater temp control dial

[LGL002]

Has anyone in the cold climate regions run into a problem with their temperature control dial on a 2000 Tundra. When the outdoor temp reaches below zero and the truck's been sitting outside the dial has a lot of resistance to movement. It's severe enough at 10 below zero I'm concerned the shaft will snap. If I leave it alone and wait for the cab to warm up ( dependant on it's existing setting) then with some resistance it's moveable. Between zero and forty degrees (all it's seen since I bought it) it works fine.

Thanks, lgl002

[maisano]

i actually took my to the dealership because i forced mine to move. they had to do a minor adjustment. but you need to be careful and it will break and then not go all the way back.

[champcaracing]

when i had mine, i had the "cable" replaced, i had wash the engine area the night before and it froze up here. in the morning i tried to move it...forced it then it never work correct. they replaced it no charge, spray the water valve with wd-40 or other lube, also lube inside the little boot where it goes into the truck....won't hurt any???

[LGL002]

Thanks guys for the assistance. You've given me a path to follow to resolve the problem. I had thought it might be a rotary type vacuum switch and it was the dial mechanism that was the problem. As soon as it warms up enough around here I'll try your suggestion.

[Stooge]

The cable has water in it and it frezzes when cold. Blow it out from the inside with compressed air and lube it with WD40 or the like. The cable points upward on the firewall where it connects to the heater TCV - anytime water gets in there and it gets cold, this is bound to happen!