GI.SS Posted October 8, 2014 Report Share Posted October 8, 2014 If anyone is familiar with their ac system, please help me out. I got in an accident and all my freon leaked out. Truck sat for a while. I replaced the ac condenser and it holds pressure now. Yet it only blows out air. The fuses and relay all work properly. The clutch is engaging as it should. To charge, I am using the port closest to the cab to fill. I feel the hose getting cold where I am filling up to where the fitting is, then warm from the fitting to the condenser. I took a look at the filter inside there, and it was clean. The pin in the filter looked odd but I'm unsure of how it's supposed to look. Could this filter thing need replacing and be causing it to not circulate? Could my compressor be bad? Anything a should look for and or check? Quote Link to comment Share on other sites More sharing options...
Aldofashow Posted October 9, 2014 Report Share Posted October 9, 2014 If your clutch is working and spinning the compresser then you have pressure and your compresser is working properly it's gotta be something else down the line Quote Link to comment Share on other sites More sharing options...
Blown 346 Posted October 9, 2014 Report Share Posted October 9, 2014 The proper way to do A/C is to completely remove all oil, moisture and freon from the system with a machine. Then start over. I have dont it a million times and it hasnt failed me yet Quote Link to comment Share on other sites More sharing options...
GI.SS Posted October 9, 2014 Author Report Share Posted October 9, 2014 so a clean orifice tube or filter whatever the heck that thing is called, it should be circulating? is the needle inside supposed to be stuck or should it move freely? maby a possible blend door stuck? but i really think that your right about air in the system. should i just have a local place try that? i done have the tools or know how on that. Unless theres a specific process or write up on it.... what is the going rate for having this done? Quote Link to comment Share on other sites More sharing options...
Blown 346 Posted October 9, 2014 Report Share Posted October 9, 2014 If you have a Harbor Freight near you, you can buy everything need there to completely evacuate the system, check to see if it hold pressure, and then start filling. The nice thing about Freon these days is the oil is already in the can. I would replace the orifice tube as well. You need this. http://www.harborfreight.com/a-c-manifold-gauge-set-92649.html And this to evacuate the system. Heres a cheapy, they work ok, but take awhile to work completly http://www.harborfreight.com/air-vacuum-pump-with-r134a-and-r12-connectors-96677.html Heres a better one, you might be able to make money on the side as I do when AC issues turn up, since a shop can get pricey. http://www.harborfreight.com/25-cfm-vacuum-pump-61245.html Quote Link to comment Share on other sites More sharing options...
GI.SS Posted October 9, 2014 Author Report Share Posted October 9, 2014 You are the man! Is the orifice tube a dealer item or would Napa carry them? Quote Link to comment Share on other sites More sharing options...
Blown 346 Posted October 9, 2014 Report Share Posted October 9, 2014 They should be available at your local parts store, Advance Auto,AutoZone, Oreilly etc. Quote Link to comment Share on other sites More sharing options...
A_FUrious Posted October 9, 2014 Report Share Posted October 9, 2014 (edited) Yes you must pull a vacuum on the circuit before adding the 134. The needle should move when you've gauged the AC compressor. These circuits only take about 3lbs of 134. So you want to be careful not to over charge it. I generally blow nitrogen through the lines preferably through the low side to the high. Then pull a vacuum.. Add the refrigerant to the low side. Edited October 9, 2014 by A_FuriouSS (see edit history) Quote Link to comment Share on other sites More sharing options...
A_FUrious Posted October 9, 2014 Report Share Posted October 9, 2014 Quote Link to comment Share on other sites More sharing options...
GI.SS Posted October 9, 2014 Author Report Share Posted October 9, 2014 mine is a tad different. I have two fittings on one line. I havent been able to find any other on the other lines. the larger one is before the orifice tube and the smallet is closer to the dryer. Im assuming high pressure is the larger port and low pressure is the smaller port? confuses me that they are both on the same line Quote Link to comment Share on other sites More sharing options...
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