Hi gyus,
I'm back here for another problem on my Chrysler Grand Voyager 2006 with really few mileage.
We start using A/C since last week when climate was warming up.
Unfortunately A/C is not working anymore.
Just warm air is coming out.

I sent car to the shop to make a check and they say there was a need of a gas recharge that is just a little lower then expected.
They recharge it and for a couple of days it works fine (air was very cool).
Then we do not use the car for a while, when i get it back again A/C is not working again.

I was beliving there was a leakage in the system so I went back to the shop, but pressure measured was ok.
We make some check and the problem was shown to be that also if compressor is rotating pressure is the same (6 bar) in both, high pressure side and in low pressure side of the system.

So I tought the problem could be in the expansion valve that is no more operating any restriction.
Could the valve be so badly damaged that no little variation in the pressure is shown between evaporator and condenser side of the gas circuit?

I'm excluding the reciver dryer as possibile cause becouse if is plugged I'm expecting to find high differential pressure.

The technician said that the problem have to be in the compressor, but while it is not cheap I'll get some more suggestion before replace it.

As last reference I add the fact that my wife remind me yesterday that this winter some strange white smoke (not smelly) come out form the ventilation in the central area of the dashboard. She switch A/C off and it stops. I could belive could be condensed water vapour.

Could you give me some advice ?
What is the right pressure of the circuit?
Any troubleshooting suggestion?

As usual you are great in helpful suggestions.

 

if high and low side pressures are both 100 psi and the clutch in spinning system charged correctly more then likely the compressor

 

How i could check if the clutch in spinning system is working properly? look like there is no way to open it to disassemble and inspect

 

turn off the ac look at the clutch its the part in front i wont move when the engine is running and ac is off then turn on the ac the clutch will retract and start it spinning
then u can tell whats going on with a set of high and low gauges in the ac lines.

 

And finally I replace the compressor and A/c was back to service. Not cheap, but this component was the problem. thanks for suggestions