Completely rebuilding the A/C system in my 1989 Silverado OBS.

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Күн бұрын

Пікірлер: 7

@benwrenchin 4 ай бұрын

Dude, I'm about to do this to mine too! Was working last Summer when I bought it, but now it's not doing much cooling at all.

@Blakes-Garage 4 ай бұрын

Good luck!

@benwrenchin 4 ай бұрын

@@Blakes-Garage thanks man. It's weird because the compressor clutch is engaging and I just topped off the refrigerant and checked the pressures...the high side is a bit low, but it's only cooling like 10-15° cooler than ambient temperature. I'm guessing either my compressor is on its way out, or my orifice tube is clogged. Won't know til I get in there, so I may just replace both along with the accumulator while I have the system opened up.

@Blakes-Garage 4 ай бұрын

@@benwrenchin what are your numbers? My truck doesn't have a "max ac" button so no way to force recirculation. I was sitting at idle earlier today and something changed in the dash and it went into recirc. It was blowing super cold. Wish I could keep it that way somehow.

@benwrenchin 4 ай бұрын

@@Blakes-Garage I got it to about 50 psi on the low side and about 140 on the high side. It was around 80° outside when I checked it, so the low side pressure is basically the highest it can be while the high side should be around 175-210° so it's not really even close to what it should be. I always thought that if the compressor clutch engages then the compressor is working, but for whatever reason mines just not working like it should.

@Blakes-Garage 4 ай бұрын

@@benwrenchin I'm no expert but I think your right. it definitely sounds like you have a clog or the compressor is going out. What year? If you do have a clogged orifice you will need to flush all the hoses and parts.