Hey Scotty! First off - great videos! Very helpful stuff! My question is about a car A/C repair I'm working on (2008 Acura RDX). My A/C clutch was bad so I decided to replace it with a brand new aftermarket A/C compressor and also bought a new condenser with receiver drier. I flushed the low and high lines, filled with oil as needed, then pulled the vacuum. About halfway filling with refrigerant, the pressures went weird - low side on a vacuum and high side also dropped. I finished filling it, but pressures stayed low side vacuum and high side only about 100-110 psi. A/C blows room temperature. I took it to have the refrigerant sucked out again and pulled the thing apart. I have a bunch of broken pieces of desiccant (looks like sand) in the high side line. I pulled out the expansion valve and evaporator - the expansion valve was clogged with the stuff and the inlet of the evaporator had black oil coming out with the outlet clear (like the stuff I'd just filled the system with). Low side suction line to the compressor also had some debris in it so I flushed the lines and there is even some tiny specs of metal (looks like brass - not aluminum) in the lines. I'm pretty sure this debris made it around to the compressor since the low side suction line also had it. I just bought a new expansion valve, evaporator, condenser, and receiver drier to do it all over again. Can I salvage the new compressor by draining and refilling the oil even though it probably has debris in it? Do I have to buy a new compressor again? I'll do it if it's the right thing to do, but if it's totally unnecessary then I'd like to save the money! Thanks Scotty!
That I don't! Guess it's a new compressor too!
Hard to say really, depends on whether you want to chance it spewing crap into the rest of the system?
I'm about 99% sure that's what happened. I took a hacksaw to both the old (Acura) and new (UAC) receiver drier and the construction is slightly different - crappier filter and larger holes holding the filter in place on the aftermarket receiver drier. I ended up buying all new Acura parts to redo it all... just wondering if my new compressor also needs to be replaced or an oil drain would suffice? (In the pics, the Acura stuff is on the left and the UAC on the right).
Hmm, I wonder if the aftermarket dryer had its desiccant come loose and then pulled that crap into the system? Perhaps it wasn't manufactured properly? At this point, I'd seriously consider going Honda OEM for the dryer, and flush out everything as best you can, then see how it goes...BUT you may need to replace everything again if there's any desiccant crap in the system trapped anywhere. Hate to say it, but you may end up needing to replace EVERYTHING in the refrigerant system at this point IF there's any doubt that crap is in the system trapped in various places.