Discussion in '1973-1991 K5 Blazer | Truck | Suburban' started by BlazerGuy, Aug 7, 2000.
How many cans of R-134a does it take to recharge the A/C?? I have a 84 Blazer.
Anybody? I have 3 12oz cans is this enough?
Most of the time their will be a sticker on your ac components where on is written how much R134a has to be in system.
Don`t put in to much it will not work well than, it`s the same if you put to little in it.
Greetings from Amsterdam,
River `89 K5, 350, TH700R4, NP241, "33, 2.73, 10 bolt F, 12 Bolt R
I just took my truck into be serviced and re-charged, they told me any system takes somewhere between 2 to 3 cans. It just depends on the size of vehicle...There should be a sticker on the a/c unit to let you know how much exactly... Just make sure you really need the 134 and it isn't an older unit w/r12 in it. Then you need the whole conversion...which you can get at Pep Boys or any auto parts store. Good luck
your blazer's a/c system should require 3.12 lb of refrigerant..per the label on the unit.
This is if it's completely empty.
for 134A, you need to put a little less in (like 3 lb) as the head pressure on the high side will get rather high when you don't have a lot of airflow over the evap. coil. as 134 has some different properties than R12
My 86 says 3.25 lbs of freon, so three cans ought to do you.
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