I have a 2004 GP GT2. How much refrigerant does the A/C hold? I need to top it off (not cooling all that well and the compressor doesn't shut off). There don't appear to be any leaks (has UV dye in it and the only place there is any is where it got on the valve on the low pressure side) so I need to add some. I added one 12 oz can of refrigerant w/ sealant in it-- not much change. I just don't want to add too much and have it work worse/lock up the compressor. The compressor whirs fairly loudly now as well.
When topping of the A/C, is it a good idea to add a can of oil too? I haven't had occasion to do anything with a/c on a vehicle (never had one with a/c issues before) but am fairly mechanically inclined. I've done things like LIM gasket on a Grand AM 3.4L, plenum pan on a Dodge Ram 360, various suspension stuff, starters, hubs, wheel bearings, shocks, valve covers, etc. Charging an a/c shouldn't be a problem :P
Thanks for reading
