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Cross posting from the stupid questions thread, because I have stupid AC questions. My air con (99 Pathfinder) isn't working, the guy I bought it from last year said it was, but was probably lying and I couldn't check till the weather got warm. The heater works and I can blow lots of air out of the vents but there's no cool at all. Air con fuse under the dash is fine. I tapped (very briefly) the two valves with a screwdriver on the What should I be checking next? Compressor/clutch check and then...? Is there a step by step for poor stupid people to troubleshooting AC before I give my mechanic money I don't have?
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May 31, 2017 19:41
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Cool. And of there's dye in there I'll just need a black light to spot leaks?
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May 31, 2017 20:42
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Enourmo posted:Right. Most parts shops sell them bundled with the uv blocking safety glasses you'll want. Apparently you can turn a smartphone into a black light with some cellophane and blue, purple sharpies. I'm gonna borrow an actual backlight, if only to see if it works.
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Jun 1, 2017 06:08
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Motronic posted:Those are York compressors, and the only time you'll find one on a vehicle anymore is because someone is using it for onboard air to run tools and fill tires. Really common in sandy areas/prickly areas eg Australia where you need to delate/inflate constantly when you hit patchs of sand and/or when just considering leaving the marked roads causes tires to fill with stakes and explode. Usually combined with split rims and inner tubes.
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Jun 11, 2017 20:59
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So I had a mechanic check my system and the compressor works fine, and barring a pressure sensor not working its likely the problem is low pressure. I also know there's some pressure in the lines, so hopefully just needs some more coolant. Instead of paying $2-300 for a mechanic is there any reason not to buy a canister of coolant and feed it in a little at a time until the clutch kicks in?
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Jul 3, 2017 19:30
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