Phantom5oh said:No, I wasn't getting any cold air. I drained the A/C System when I swapped my engine last month so they system is empty, thus needing a recharge.
I have the Polar Air recharge kit from Autozone, but the directions are pretty vague. They say to fill the system with the proper amount of 134.
I filled it last night and to get the air even cool I used 2 cans (15oz each). That put my pressure at 75 psi or in the red zone (danger). When the system was in the full/safe zone it wouldn't even get cool.
You need a vacuum pump. Not horribly expensive, but still going to set you back a couple hundred bucks for the right one. Cheaper than going to most shops, especially if you have multiple cars.CobraR77 said:I’m in the same boat… What is a do-it-yourselfer solution for evacuating the system?
I should have thought of that. It only makes sense, because air is compressible fluid. Trapped in the system it would create a higher pressure and make the compressor work twice as hard.HairyCanary said:If you drained the system, wouldn't you need to draw a vacuum before refilling it? That might explain why you have more than enough pressure but not much cooling.
Edit: I just talked with my brother (getting to be an expert with A/C, has his own tools and has been doing a bunch of friends' cars). If the system was vented, then you *must* pull a vacuum before recharging, or you will not get satisfactory results.
That Autozone Kit worked great!! No complaints. I used up 2 cans completely. Im cool now, plus i got my vents to workMusti94 said:I bought the Polar kit yesterday from Autozone too. It looks good for $37, which the gauge and stuff. Hope all goes well, though it still need to fix my front vent problem.