dodge durango 2007 - A/C question

[jterranova6]

I recently replaced a leaky front evaporetor. I evacuated the system to 30 for about 1 hour. waited 1 hour and it held vacum. I recharged it to 35 on the low side and 175 on the high side. however its not blowing cold air. I replaced the expansion valve with the same results no cold air in front or rear. the fan on the condenser goes on if the pressure rises ove 40 at idle. I bypassed the heater core but no results. any suggestions

[shorod]

Does the compressor clutch engage the compressor when the A/C is turned on? What do the high and low pressures do when the compressor is running?

After evacuating the system did you fill just based off pressure, or based off volume per the system capacity? Did you add any oil to the system?

-Rod

[jterranova6]

yes the clutch engages oil was added and Freon was added to pressure. the low side is 40lbs and the high side 200. also a new expansion valve was installed