Replaced orifice and accumulator. Vacuumed down for 40 minutes, let sit for 60 minutes and no loss. Added small can of Ester oil and added can of 134a. Was only about 1/2 to 3/4 of can and it was already over charged, but not blowing cold. Guages show about 70psi on low side and 100psi on high side with AC on Max. Air never gets cold. There is a chatter when the AC clutch is engaged. Can someone point me in the next step to troubleshoot please?