The system could be low on oil. The compressor will shut itself down if it detects a lack of oil or refrigerant. Try adding compressor oil (comes in a can similar to the R-134A) to see if the compressor will stay engaged long enough to accept a charge. It's also possible that the system has so much air in it that it needs to be evacuated before refrigerant can be added. I'd try to add the oil and see if you have better sucess adding refrigerant REMINDER: Have AC on HIGH when adding refrigerant with car running
Hope this helps with your AC problem. Please post back with any other questions. Best of luck.
Greg
Yes, I'd get the oil by itself. If the system won't accept a normal charge, it can't get the oil from the can you're trying to add.
Any brand specified for R134A AC systems should work. There are some with the UV dye in them that cost more but you already have that in the refrigerant so I wouldn't bother with those. I've also come across a web page with some useful information you might like to see.
http://www.cyberbright.com/autobin/air_c...
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no i don't see one. I haven't had the truck long so not sure how it worked last year. when i start it and turn on the air the center of the fly wheel on the compressor turns then shuts off after 2-3 seconds. this causes the guage on the freeone can i am using to drop way low, then when it kicks off and stops spinning the pressure shoots back up on the gauge. i tried to shoot a little freeone in the line but it started to squirt a little out of the hose coupling.
No i just got a can of recharge freeone from walmart to put in it since it wasn't blowing cold and i could here the compressor coming on. figured it was just low on freeone.
ok the kind I got has oil and leak sealer in it. should i get a can of just oil then and try that?
ok will get some and try it. do you have any recommendations on any particular type?
Does the AC service light appear on the dash?
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