Question about cruise control and air

[XLT]

I think i have a problem but i searched around and found nothing related to it. When i am driving with the cruise control on and drive up a decent incline or a hill my heater stops blowing warm air. Once i make it to the top of the hill it begins blowing air again. Its not a big issue just annoying. Any ideas??

 

[cowchaser]

Every car I have owned the ac/heater would do the opposite if I floored it or it down shifted to go up an incline. Not a mechanic, but assume maybe the thermostat is opening up from the high rpms and heavy acceleration.

 

[OneLever]

I do not know the AC system very well, but I have noticed there is a AC compressor shutoff switch of some kind in the wiring diagrams. Presumably to disconnect it temporarily while the engine is under high load conditions. Since the compressor leeches off some engine power it would make sense for it to shut off momentarily to let as much power as possible go to moving you up the incline.

It is also possible that part of the circuitry is turning on too much for you.

 

[XLT]

Alright. Thanks for the input. I wasn't sure if it really was a problem or just something it did.