Moderators: bohica2xo, Tim, JohnHere
. I am going to need a/c gauges, please recommend me a brand/model 
. Also, days before it quit I could hear a metallic crushing noise associated with the a/c been turned on, and would go away when turn off (meanwhile the a/c was still blowing cold). Now, assuming the compressor is the problem. What do you guys think of using a compressor from a junkyard and what is a good way of knowing it works, before buying it?Yes, that sounds like a bad compressor to me (do not run it further). I'd disconnect the compressor wire if you decide to wait for spring to fix it, compressors typically engage with defroster turn on. My 2004 Frontier compressor seized in September, made bad noise while driving but silent when AC was switched off, the AC clutch bearing and idler pulley were fine. Issue is: with that situation, one has no idea if or how much contamination made its way through the high pressure line or the condenser to the drier. On modern AC systems, those should all be replaced except the high pressure lines can be backflushed with solvent.FixAutoAC wrote:days before it quit I could hear a metallic crushing noise associated with the a/c been turned on, and would go away when turn off (meanwhile the a/c was still blowing cold).
FixAutoAC wrote:What do you guys think of using a compressor from a junkyard and what is a good way of knowing it works, before buying it?
I believe most driers have a screen that would trap particles. I didn't touch the expansion valve or evaporator when I replaced the compressor in my 2004 Frontier in October. I actually cut its old drier apart and looked for any particles in it, didn't see any.FixAutoAC wrote:Are you saying that all the contamination is at last contained inside the dryer? In other words I don't need to worry about the expansion valve or evaporator needing replacement?
