a/c problems

[wkgjamb]

I have 2002 caravan 3.3.Started having problems with a/c, one minute would blow cold then would blow hot.Seemed like the problem kept geting worse ,sometimes if i turned a/c on then off a couple times it would blow cold again, then process would repeat .Added 134a with cheap single gage ,said charge was fine,but still had same problem.Got a set of high and low side set of pressure gages , pressure tested both gages were in the red.Noticed compressor would constantly kick on and off,a/c blows cool not cold.When motor is idled up fast 134a blows onto the ground under compressor.Can anyone help?

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[kev2]

post the gauge readings*.
did you use a sealer/stopleak r134a?

The system is dumping refridgerant? is that correct?

IF YES then thre is a restriction comp to evaporator....
BUT system should shut down....Is the CEL on ?

knowing front only or front and rear will hellp get info

* Sorry got to ask -both gauges in red? the valves on gauges are CLOSED?

[wkgjamb]

high pressure side reading 125psi, low pressure side reads 80psi ,compressor steady kicks on and off.put stop leak r134a in would only take 1/3 of a can wouldnt take any more ,didnt add till right at end of these problems happening. yes system is dumping r134a.cel is not on,is front only.

[kev2]

I want to be sure we are on same page...those are the pressure with eng running?

[wkgjamb]

yes with motor running,a/c on high.