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Yeah so i sometimes PnG with the air con on and this means the aircon is constantly on/off. Would this result in high amounts of wear on the aircon system? I'm merely asking this because my dad always tells me to turn off the aircon before i switch the car on/off to prevent any damage.

Most vehicles already pulse the AC -- in smaller vehicles (like yours) you can feel the compressor kicking in/out with either a "loss" of power or a "gain" in power.

When I have to use the AC (for passengers, of course ;)) I pulse it too and just figure I'm specifying my own duty cycle instead of letting the car do it for me.

i do NOT sell this, but an independent researcher/mechanic installs it and claims to double the life of the compressor...http://ice32.com/

I've heard to shut A/C off before starting so that engine load is reduced by not spinning the compressor. That would probably apply more on cold starts and not so important for P&G scenarios.

Modern electronic controls will not allow the compressor to restart too often.
I've heard to shut A/C off before starting so that engine load is reduced by not spinning the compressor. That would probably apply more on cold starts and not so important for P&G scenarios.
I think the A/C would be wired to turn off during starting.

I've heard to shut A/C off before starting so that engine load is reduced by not spinning the compressor. That would probably apply more on cold starts and not so important for P&G scenarios.

That's what I've heard too.

i do NOT sell this, but an independent researcher/mechanic installs it and claims to double the life of the compressor...http://ice32.com/
http://hvac-talk.com/vbb/showthread.php?t=103614

thanks for the information guys

On some previous Hondas I used a device called the "PassMaster". Esentially a vacuum activated switch. With sufficient vacuum the switch was closed. If vacuum fell, the switch opened. It employed a kind of oil can diaphragm. There were three models with different vacuum thresholds, roughly tailored for 4, 6 and 8 cylinder cars.

It had a vacuum hose which you connected to a vacuum port on the intake manifold. Then you cut the power lead to the air compressor, and spliced in the vacuum switch.

Under normal driving conditions, intake manifold vacuum stays high, the vacuum switch accordingly stays closed, and your air conditioner runs. Light acceleration, same result. With moderate to strong acceleration, say passing or going up a steep grade, intake manifold vacuum drops, the switch opens, the air condition compressor goes off, temporarily.

Please excuse the preamble, I guess what I'm saying: I had this on several cars for quite a few years, intermittantly cutting power to the AC compressor, with no ill effects noticed.

Who is Allie Moore??

Who is Allie Moore??
http://www.cleanmpg.com/forums/showpost.php?p=253273&postcount=23