Compressor won't cycle

[hermannm]

Hi i just replace the ac compressor on my 92 cutlass supreme. I put in 2 cans of the redtek r12a. The compressor comes on and gets cold but does not cycle on and off? What could cause this and is this bad for the car/ ac system?

 

Thanks,

 

Matt.

[sloick]

they dont cycle on and off unless pressure switch tells it to, which would mean it had low pressure. yours is working properly.

[mfewtrail]

The compressor in your car is of the "variable displacement" variety and does not cycle.

[1990lumina]

Only time it would cycle is WOT it'll cut off.

[hermannm]

Okay good to know. I thought all compressors cycled. How does a variable displacement compressor work? and what does WOT mean (Only time it would cycle is WOT it'll cut off?)

[sloick]

wot throttle means wide open throttle. it kicks the compressor off so it doesnt consume the power youre trying to use. its a great thing to have, i wish alot of other cars did this, meaning 4 cylinders.

[mfewtrail]

How does a variable displacement compressor work?

 

Here's a good read about variable displacement compressors: http://www.polarbearinc.com/Articles/Variable%20Displacement%20Compressor.pdf

[SrMichi]

wot throttle means wide open throttle. it kicks the compressor off so it doesnt consume the power youre trying to use. its a great thing to have, i wish alot of other cars did this, meaning 4 cylinders.

 

Wait it does? holy shit never knew this does my car have this?