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2004 Chevy Silverado 2500HD extended cab with 8' bed; 6.0, 199,000 miles. One owner, reasonably unmolested (it's my neighbor's, and I have done all of the molesting since he bought it 19-years ago) I'm working on the 'reduced power' issue that cropped up about 8-years ago, and had gradually gotten worse until it sidelined this truck for the past couple years. May have it licked; I've been driving it daily to see if it'll go into limp. Noticed the A/C was warm. It has never had any A/C work done on it, and worked fine a year+ ago but it's been sitting mostly all that time because it would go into RPM as soon as it was started. Static pressure at 78-degrees was 25/65. The compressor would not kick on until I added refrigerant, and then it started short-cycling, with the low side 25-80 and the high side 50-100, alternating when the compressor kicked on (for about 4-seconds, then 10-seconds off). No matter how much refrigerant I introduced (maybe 8-ounces), only the low side went up - as far as 90. Drew down the refrigerant in case I ruptured something. I'm guessing: - bad compressor - blocked orifice tube - bad temp/pressure sensor somewhere.
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Jun 7, 2023 05:11
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| # ¿ May 9, 2024 07:23 |
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Checked today, both reading 45. I’m replacing the orifice tube and the receiver/drier/accumulator as well as the switch on it. You ain’t kidding about cheap: all 3-parts were $42.00. After that it’ll be the compressor, if he wants to. At the risk of being repetitive/not reading: is it possible to get a recommendation for the compressor? PainterofCrap fucked around with this message at 00:09 on Jun 8, 2023 |
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Jun 8, 2023 00:02
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MrOnBicycle posted:2003 E39. I've checked that there is no gas in the system by hooking up a set of A/C vacuum gauges. Nothing at all registering. So I figured it all leaked out from a damaged condenser or something. I hooked up the vacuum pump and it got it down to 29mmHg and after shutting it off and closing the valves ( and fixing a leak in the connector), the system held a vacuum for at least an hour. My son’s 2000 Accord had a leak we chased for over a year. Took it to a shop that charged it; leaked down within a week. Held pressure on vacuum. Finally, pulled the Schrader valves. Low-side valve had a blown inner o-ring.
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Jun 18, 2023 00:40
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My son's '01 Accord is still leaking. Replaced the Schraders, but after a couple weeks it was blowing warm. I replaced the O-rings on the compressor today; there's leak detector in there, but no leaks have been detected. I'm guessing it may be the hoses; if I decide to do them will probably replace the condensor and receiver/drier as well. It's blowing about 42-degrees as of this evening, so it's clearly working fine. My wife's '13 Kia Soul is putting out maybe 60-degrees; it seems to be fully charged, and is holding it fine so I'm wondering if it's the condensor, or maybe the compressor's going. Will be checking the cabin air filter tomorrow; though that seems like a stretch to me. PainterofCrap fucked around with this message at 04:17 on Jul 15, 2023 |
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Jul 15, 2023 04:14
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