AC repair tools - The 1947 - Present Chevrolet & GMC Truck Message Board Network

JointTech · 07-31-2014, 06:13 AM

My AC is getting really weak. r134. I used one of those AC Master cans from the parts store and followed the directions to add refridgerant. I added probably half a bottle and then it started blowing really warm air.
The gauge on this POS bottle is basically useless and I think I over filled it. I recovered some back out and its back to blowing mildly cool air...
Im thinking I want to vacuum the system and fill it up.
I was looking at hoses and gauges on amazon and cant figure out what I need.

I have a vacuum pump. I dont plan on filtering the 134 ill just get new cans.

What set of gauges/manifold would you recommend? Some look like they only work for filling.
Do I need low loss fittings?

07-31-2014, 06:13 AM	#1
JointTech Registered User Join Date: Feb 2012 Location: Mission Viejo, CA Posts: 1,858	AC repair tools My AC is getting really weak. r134. I used one of those AC Master cans from the parts store and followed the directions to add refridgerant. I added probably half a bottle and then it started blowing really warm air. The gauge on this POS bottle is basically useless and I think I over filled it. I recovered some back out and its back to blowing mildly cool air... Im thinking I want to vacuum the system and fill it up. I was looking at hoses and gauges on amazon and cant figure out what I need. I have a vacuum pump. I dont plan on filtering the 134 ill just get new cans. What set of gauges/manifold would you recommend? Some look like they only work for filling. Do I need low loss fittings? __________________ 72 C20 Long Bed SB350 TH400 14 bolt rear end Extremely boring build thread Last edited by JointTech; 07-31-2014 at 07:17 AM.

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