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73-87 Chevy _ GMC Trucks => 73-87 Chevy & GMC Trucks => Topic started by: steve harvey on August 26, 2012, 01:03:28 pm

Title: ac question
Post by: steve harvey on August 26, 2012, 01:03:28 pm

hey guys, just a quick question. i have a 82 chevy silverado. is there any way to tell if the system has been converted to 134?

Title: Re: ac question
Post by: Irish_Alley on August 26, 2012, 02:23:53 pm

the high and low connections on 134a are different sizes

Title: Re: ac question
Post by: Captkaos on August 28, 2012, 05:24:26 pm

If there are adapters on the dryer, and the high side line it would be 134, otherwise there is not a good way to tell.  I had issues with my fittings so I charged with the factory fittings with a 134 can.

Title: Re: ac question
Post by: werewolfx13 on September 03, 2012, 02:16:42 am

If in doubt, have the system converted by a VERY reputable shop, and make SURE they changed the accumulator and orifice tube. R134 does well with a variable orifice, but I've had problems with them not sliding in the evaporator tube all the way and then breaking off when you try to remove it.