Switch off A/C at altitude
Switch off A/C at altitude
(OP)
Hi
Could anybody please explain why there is a sign at the top of Yosimite Pass which asks drivers to switch off their cars air conditioning. I am presuming it has something to do with the effect of air prssure at altitude which could damge the A/C unit - but not being fridge minded can somebody help
many thanks
Jeff
Could anybody please explain why there is a sign at the top of Yosimite Pass which asks drivers to switch off their cars air conditioning. I am presuming it has something to do with the effect of air prssure at altitude which could damge the A/C unit - but not being fridge minded can somebody help
many thanks
Jeff





RE: Switch off A/C at altitude
As far as ACs are concerned, you need not bother about air.
(except oper air refrigeration, like that used in planes while moving)
RE: Switch off A/C at altitude
Sorry! quark! nailed it. It has nothing to do with the air conditioner other than the Load it places upon the internal combustion engine which is starved for air/air pressure at that altitude.
Its a Public Service Message only. I speculate; Many a tourist has needed to be rescued from radiator boilover so "they" are attemting to reduce their losses by adding the sign.
pennpoint