07 Expy Ltd & R134a AC Kit

[j2gifted]

My AC isnt blowing as cold and I was thinking about using one of those r134a refrigerant self refill kits that they sell at the parts store or walmart. Ive heard good things about them, they have the pressure guages built in... are they ok to use on my 07 Expy Limited?

I also have rear AC, does that make any difference? Also, where exactly is the low pressure fill line under the hood?

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[JUST4FUN]

if its low most likely it has a leak so it needs to have dye put in so have a A/C tech look at it. putting 134 in it would be a waste of money to have it just leak again