Join Now
International Automotive Technicians Network
A/C Problem
Posted to HVAC Forum on 6/30/2015 69 Replies

I am needing some help on with this A/C system. I replaced the compressor, orifice tube, dryer, and rear expansion valve a year age and customer brought it back with a locked up clutch this week. I replaced the Compressor, orifice tube, and dryer under warranty and noticed that the accumulator had corroded out on the bottom so i replaced this also. and then pulled a 45 min vacuum on the system then recharged system. It calls for 3lbs 8oz. I started with 3 pounds and could only get the system to take about 2lbs 10oz. The pressures went to 60/330 and i stopped the charge and reinspected everything. the inside was cooling to about 45. I pulled 4oz out of the system and now the pressures are at 45/200 and it is cooling at about 50 degrees inside. I know something is wrong and this is not correct and i can not find what could be the cause.

I checked the condenser by running a water hose over it and the high pressure dropped to about 180.

could it possible be the rear expansion valve on this? the front and rear is cooling about the same. Could by new orifice be bad? I don't think there is to much oil in the system as i added back the correct amount the label under the hood called for. I am at a loss here as i have never run into this before.

James Odom
Walton County Recovery LLC
Freeport, Florida, USA

69 Replies Received (View Replies)


car Vehicle Data

2002 Ford Explorer XLT 4.0L

Engine4.0 L
Trans5-speed Automatic (Electronic)