Time to replace my compressor

[marshallsmith27]

First drive of the day drove it today to Lowes to get some bolts to reattach the wiper reservoir thats not been in the truck since I bought the truck because nothing worked (it was a multitude of switches that were bad) and todays thing is to definitely clean the evap core. its currently 79º and 98% humidity and it was blowing 58º. I dont want to keep connecting the manifold gauges. even if it doesnt let a lot out its still losing pressure each time. I know there were leaves in it recently because I accidentally blew some in at the cowl and I could hear them for a few days. I also doubt its ever been cleaned. the guy I bought the truck from never really drove it and within 4 or so months of having it I had probably replaced 20 switches and sensors that were bad. nothing electrically worked on the truck. it drove great but nothing worked.

 

[marshallsmith27]

Just cleaned the evaporator core. And did one last check since its about 82º and 75% humidity.

I would say its cleaner than I thought. I took some purple power and a soft rag and the hose on low and got it as good as I could without tearing it up or puncturing it.

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Static pressure is about 96 Low and 99-100 High

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The readings while running for about 10 minutes is 44 low and 212 high at 82º ambient temperature thats pretty good. r134a is rated (80°F Ambient temperature: Low side pressure 40-50 psi High side pressure 175-210 psi).

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Center vent reads 60º. I wanted to do this one last time so I knew while testing that everything was clean and in check. I touched the evap core and it was cold but I would expect it to be colder to the touch.

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[Dariusz Salomon]

what temps are you getting?

I still need to clean the evap core because the accumulator gets so cold to the touch so I know the freon going through the evap is nice and cold

This summer is slightly worse than i.e. last year-but first-we had really high temps for this time of the year. Second-I wasn't using AC since last summer so it's cranking up lol-mind ya it's always been a bit slow on the start up.
Third-I have dual system in the Tahoe with "experimental"rubber/copper hoses running to the back(original ones crapped up on me on mulitiple occasions when I was bringing the system back to life so thinner one has a spliced in copper pipe, thicker one is rubber AC hose on original fittings).
Fourth-since last summer I have a reservations as to how well the valves for refills are holding-gotta check the levels of refrigerant in the system.
Fifth-I never drive it far enough. But tomorrow we go to see Euro Nascar again,so will put it to a "family test"-and will take it from there.
But what I'm happy about, is that it's still working well enough-it's been a bit of a fight with the rear part of a system,as I got stubborn to have both front and back work, and replacing those pipes is not a matter of simply buying replacement(which you can get but prolly would have to raise the body off of the frame to put on). Nobody sells AC hoses in the UK,so I had to source it from abroad. Finding a workshop to put the rubber hose on fittings was also an issue,as craftsmanship is dying.

As to temperatures,I tested them I think 2 years ago after refill(can't remember the read outs) but it was cold enough to make my wife cover her knees(due to an awesome(NOT)placement of the dash vents)-it certainly gives me, what I call "a frost bite"-hard to explain,as it's a subjective feeling, but when I put my hand on the vent I must feel it reaching the flesh under my skin-then I know it works as it should.