Whirling noise after replacing A/C compressor

[mimikrillusion]

Ok, after getting a quote of $1700 to replace the A/C compressor on my 1997 T&C lxi with a 3.8 engine and front and rear air, I decided to do it myself. Found a remanufactured compressor on ebay that also came with a brand new Drier for $225. Compressor came with the PAG oil prefilled. I also replaced the o-rings, serpentien belt, $20 and shadder valve. Had a local shop evacuate and vacuum system for $75.00 and they said it held a vacuum down to -30psi as it was supposed to. I added 3 cans of Freon for $13.00 but the cheap color gage ($16), I have and living in HOUSTON TX where it was 98 degrees out, the gage was reading in the ALERT (yellow) section which could be fine considering the heat as gage is based on outside temp of 75.

Now for the problem. A/C blows cold and is fine at idle but when accelerating seems to put drag on the engine and makes a whirling sound over 2000 RPM's. If you turn the A/C off the sound goes away and you can feel the drag lifted from the engine was also effecting the automatic shifting interval. Lights, being the rear window wiper were blinking but from other post found out how to recalibrate it so they no longer flash. However it is 2:00 in the morning so have not started the car to make sure lights don't start blinking again. Oh and one more thing, I forgot to flush the system as by time I got everything out it was after midnight and simply forgot to use some brake clean to flush it out. This was also a first on this van to do this job and after all was put back together I found some tricks to make it a whole lot easier, especially replacing the Drier and would gladly share this if anyone needs help.

Any suggestions of what this could be. Is it possible there was too much oil or not enough oil in the system? Could the compressor which I just installed be bad? Could there be too much tension from the new belt or tensioner?

I will hopefully find a shop that won't charge me an arm and leg to hook up some gages during the day to give me some pressure reading on both the low and high pressure lines to hopefully shed some light on it.

Thanks for any rely's

[mimikrillusion]

Ok, after talking to the supplier of the A/C compressor who is located in Florida, they said I should be getting the following pressure readings.

At idle - Low: 30-35 psi and High: 200-210 psi
At 2500 rpm - Low: 27-30 psi and High: 240 psi

Below are the actual pressure reading I got when local auto shop took pressure readings. Keep in mind this was taking today July 20th 2004 in Houston, TX at 4:30 in the afternoon with an outside temperature reading of 98 degrees and with being in Houston we have a lot of humidity so the real feel temperature was probably over 100. Tech thought everything looked fine and that the blame was the compressor just being noisy but I would really like other optinions as it also puts resistance on the engine and affects the automatic trans. shifting.

at idle - Low: 50 psi and High: 220 psi
at 2500 rpm - Low: 34 psi and High: 270 psi