I was talking to my oldest daughter (she has three little girls) last night and she just got an estimate to fix her A/C in her Mercury Mariner. The estimate was just short of $1500 with caveats (crazy). Obviously, she would like to have A/C this summer. My son-in-law is a great young man but does not have the skills (yet) or the tools to complete this repair. I told her I would get it working for her. She scheduled some time to bring the car and our grandbabies on the 25th. She was told the condenser was leaking, so I just ordered the condenser, dryer/accumulator, expansion valve and seal/o-ring kit from RockAuto. Obviously, I will conduct my own troubleshooting, but I will have the parts on hand so we can get it done quickly and then I can spend time with our granddaughters.
A long day but my daughter has A/C again after almost 3 years - which I found out yesterday that is how long she was without. A bit longer job, that bumper cover was a bit stubborn plus we got a later start. So happy they all stayed over for the night so I was able to spend time with all the grand daughters and of course my daughter and son in law. Not a lot of pictures because it was mostly a training event for my son in law. After getting the bumper cover off, we started by adding some freon and dye. However, there was no pressure so we needed to jumper the ac relay to get the compressor to kick on. As we were adding freon, it didn't take long to find the leak in the condenser. It was leaking so badly that we found it in less than 2 minutes. Continued to run it while adding freon to check out the rest of the system. No other leaks detected and the compressor appears to be sound. Then we dismantled the system - first starting with the removal of the old condenser. then we replaced the expansion valve. Then the accumulator/dryer and finally installing the new condenser.
The old condenser - this thing was in bad shape, especially near the bottom.
The new expansion valve in place.
The new condenser, sorry no picture of the new accumulator/dryer.
After sealing everything up with new gaskets and o-rings we pulled a hard vacuum. Let it run for 45 minutes while we ate lunch. During lunch we talked about the theory of the a/c system and what we were doing from a step by step process. Prior to lunch:
After lunch we closed off the valves and shutoff/disconnected the vacuum pump. After 60 minutes there was no change to the vacuum pressure:
Prior to adding freon we disconnected the negative battery terminal for about 3 minutes (I wanted to ensure that everything was reset and the compressor would kick on as required). Then we hooked up a can of freon. Purged the lines and then added the can to the system, the engine was not running at this point. The vacuum pulled the freon in, once that stabilized we started the engine (max cool, max fan), the compressor kicked on and we added the required 1.56 lbs of freon while watching our low/high pressures. My son in law was so pleased to be part of this effort and I could tell he learned a lot through this process. My daughter was so happy and my grand daughters gave me big hugs and kisses. Today was 89 with a real feel of 98. It would have been miserable driving home. Not anymore.