Blow it out thoroughly and repeatedly, preferably with nitrogen. Because the evaporator is designed as a low-pressure component, I use no more pressure than 100 PSI to be on the safe side. Lacking a nitrogen set-up, you'll have no choice but to use shop air—the dryer and more filtered, the better. ...

JohnHere wrote: ↑Thu Aug 11, 2022 12:37 pm If you flush the evaporator in situ, try to ensure that you get out all of the flushing chemical, which will cause problems if you inadvertently leave any of it in there.

Thanks. Hopefully we can.

If it's a parallel-flow condenser--and it most likely is--it really can't be flushed. Good decision on replacing it especially since you've taken it this far. Would be a shame not to replace it, and then the compressor gets ruined again. I also advise replacing the accumulator because moisture will...

"The compressor did not make any noise so if it grenaded, it did it quietly." They can do that. No where else that trash on the OT can come from Yes, I agree the compressor is shot because there is nowhere else that debris would come from. I just have not seen one that dirty where the com...

John had already suggested to replace comp due to high mileage, guess it grenaded anyway before you could get to it. Unless you have specialized flushing equipment from HECAT, condensers need to be replaced, and the hoses flushed well or replaced. You have been on here before so you already know th...

Prior to me going out of town, I told him it was possible that his compressor is weak and needs to be replaced because of the mileage of the truck and he has no idea if it was ever replaced. He has already bought a replacement compressor and accumulator and plans to install them at some point. The ...

Adding to what has already been said: Well, the AC charge was evacuated, and I vacuumed the system down for 30 minutes and then let it sit for 30 minutes. The pressure decayed slightly so I vacuumed again for about 20 minutes and let it sit for about another 20 minutes and the pressure held. I rech...

cold air shouldn't be coming out underhood, fix the foam seals or seal it up somehow. If that's jacked up, makes me think the HVAC module was removed at some point, maybe an aftermarket evaporator in there or a badly assembled HVAC module? I think I'd try troubleshooting heater core problems, maybe...

We looked for a capacity sticker and there is not one anywhere that we can find. Someone earlier in the thread had said it holds 45 ounces, but I don't know for sure. Right—that was me. The specs that I have for the 2006 and 2007 versions of this truck list 45 ounces of R-134a and 9 ounces of PAG-4...

The low pressure line coming off of the accumulator would sometimes be very cold and other times not cold at all. Yep, undercharged. My guess is you are right around an empty accumulator. 8oz low. Best thing to do is have a pro recharge entire charge by weight. Thanks. I bet that you are right. Tha...