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New Member
- Joined
- Sep 4, 2015
- Messages
- 4
- Reaction score
- 0
- Points
- 1
- Location
- Roanoke, Texas
- Vehicle Year
- 1994
- Make / Model
- Ford
- Engine Type
- 4.0 V6
- Transmission
- Automatic
- 2WD / 4WD
- 2WD
Hi,
This is my first post.
I have been struggling with this issue all summer. I have replaced the following components on my inherited 94 Ranger XLT 4.0 RWD:
Accumulator
Evaporator
Orifice tube
Low pressure switch
Low pressure hose
High pressure hose
Condenser
Parts not replaced:
Compressor
High pressure switch.
I flushed compressor, other parts are all new. I have also evacuated the system for 40 minutes and checked for leaks for 40 minutes again without a change in pressure (-30). I added 7 oz of PAG 46 oil and 22 ounces for R134 refrigerant (Per label in evaporator housing. Pressure after fully charging it was 40/225. AC was very cold for about 30 miles on drive home from work and then just blew out a large amount of refrigerant and oil from the pressure relief valve.
On a previous occasion, I had gauge attached and AC was working fine. And compressor began to cycle off and on even though appropriate oil and refrigerant amounts were in system. As it turned off, pressure climbed rapidly. I turned off the AC and pressure would stop climbing.
Could there be something wrong with the compressor or High pressure switch since they are the only 2 components I have not replaced? Or could there be something else.
Thanks,
JAlvarado
This is my first post.
I have been struggling with this issue all summer. I have replaced the following components on my inherited 94 Ranger XLT 4.0 RWD:
Accumulator
Evaporator
Orifice tube
Low pressure switch
Low pressure hose
High pressure hose
Condenser
Parts not replaced:
Compressor
High pressure switch.
I flushed compressor, other parts are all new. I have also evacuated the system for 40 minutes and checked for leaks for 40 minutes again without a change in pressure (-30). I added 7 oz of PAG 46 oil and 22 ounces for R134 refrigerant (Per label in evaporator housing. Pressure after fully charging it was 40/225. AC was very cold for about 30 miles on drive home from work and then just blew out a large amount of refrigerant and oil from the pressure relief valve.
On a previous occasion, I had gauge attached and AC was working fine. And compressor began to cycle off and on even though appropriate oil and refrigerant amounts were in system. As it turned off, pressure climbed rapidly. I turned off the AC and pressure would stop climbing.
Could there be something wrong with the compressor or High pressure switch since they are the only 2 components I have not replaced? Or could there be something else.
Thanks,
JAlvarado
