KrayzieFox
Member
- :
- 01 MP3 Turbo
So I had to evacuate my A/C to remove the evaporator unit in order to fix a nasty water leak I had behind the dash on the passenger side (cracked body seam). That job is all done, but now I'm struggling with getting the A/C recharged.
I rented a vacuum pump and gauge kit from AutoZone, and bought several cans of R134a refrigerant. I'm trying to follow the service manual and countless YouTube videos that demonstrate this, but the refrigerant simply won't go in. I'm hoping someone here has done this and might know what's going on.
Here are my steps:
1. Pull vacuum on entire system for an hour
2. Vacuum holds at -29 inHg for well over an hour
3. Charge 300g (~1 can) through the High port (as suggested by service manual). A little goes in on its own, but warming up the can in a bucket of warm water helps get the rest of the can in.
Now this is where I get stuck. The service manual says to charge the system halfway (300g) through the High port with the engine off, then charge the rest through the Low port with the engine and A/C on. The 300g I charge through the High port enable the compressor clutch to engage and click on, but no refrigerant gets drawn in through the Low port. It's almost like there's a valve somewhere blocking the flow...
Something in the evaporator unit? Thats the only part of the system I had to take out for this project. I've tried this a couple times now and no matter what I do, nothing goes in through the Low side.
I rented a vacuum pump and gauge kit from AutoZone, and bought several cans of R134a refrigerant. I'm trying to follow the service manual and countless YouTube videos that demonstrate this, but the refrigerant simply won't go in. I'm hoping someone here has done this and might know what's going on.
Here are my steps:
1. Pull vacuum on entire system for an hour
2. Vacuum holds at -29 inHg for well over an hour
3. Charge 300g (~1 can) through the High port (as suggested by service manual). A little goes in on its own, but warming up the can in a bucket of warm water helps get the rest of the can in.
Now this is where I get stuck. The service manual says to charge the system halfway (300g) through the High port with the engine off, then charge the rest through the Low port with the engine and A/C on. The 300g I charge through the High port enable the compressor clutch to engage and click on, but no refrigerant gets drawn in through the Low port. It's almost like there's a valve somewhere blocking the flow...
Something in the evaporator unit? Thats the only part of the system I had to take out for this project. I've tried this a couple times now and no matter what I do, nothing goes in through the Low side.