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I connected both red an blue then opened just the blue a tiny bit both gauges moved a little.
then opened the red a little when I opened these valves I heard a leak searched around only to find she was leaking from the dam yellow tube. I accidentally had the can priecer open w/ no can attached.
so I closed the can pricer no more leak to be heard. so far the gauges haven't moved in 40 minutes all this w/ engine turned off.
could I have introduced air into the sys. where I have to vacuum? or can I start recharging?
I plan to dump the whole tiny can I think it's a 1/4oz of UV dye into yellow tube
however when I purge the yellow tube won't it blow out all the dye?
or should I pour the dye into the red or blue tube?
but since my oil can attaches to the yellow tube (screws on same as the freeon can)still unsure of how to regulate the amount of oil?
the GM lable says .81LB front only 1.41LB front an rear. but neglectes to mention the type of pag oil.
this van is actuely a RV van I'll have to find out if she has a rear AC.when she was built it came w/ a roof mounted RV type AC, I believe there's no rear GM AC.
when I rebuilt the whole AC sys. on the car 99TA I purchased this Pag100 oil
then found out car uses pag 150 (IIRC) so I didn't add any oil bc new compressor was full of oil I actuelly had to dump half the compressor oil out.
Pour the dye into the yellow hose and then hook up the refrigerant can and then open refrigerant side valve and then open low side valve, make sure ac is on max. As far as the oil goes unless you changed parts or lost all the refrigerant i wouldnt even put the oil, if it went to completely empty then id put it.
if it did id shoot the whole can in it followed by refrigerant.
I've been thinking it mite be better to add the dye into the low pressure blue tube bc when I connect the freeon to the yellow I have to purge the yellow and am thinking this would blow out all the dye?
I've been thinking it mite be better to add the dye into the low pressure blue tube bc when I connect the freeon to the yellow I have to purge the yellow and am thinking this would blow out all the dye?
Pour it into the yellow hose and then hookup the refrigerant can, it will push it into the system.
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recharging AC 
