RenegadeRomeo

Hey guys I know it's not a lsx but I'm desperately in need of help..
I got a 99 suburban with 212k miles 5.7 been a perfect lil truck..only thing iv ever had to do is charge the ac system when I first got it....... I charged it to the specs provided by the dealer - it's been good since...... Altho there have been times I feel it does cool as good as it should - mainly at idle on super hot days !....... Ever since I got the system working - the compressor has had a click/clanky noise to it.......
Today my truck stuttered at a stop sign - it's done this before - put it in neutral and rev and it cleans up - it's random ( probably needs a tune up )....... Anyway I parked the truck right after it did this.........
everything seemed fine.....
came back out a hour later and the ac is not never trying to get cold..... The compressor is on - it seems much more noisier and constant then before - now it's noticable in higher RPMs vs before not as much ....... Did the compressor just die or clogged system.......
I checked the pressure with a cheap gauge I have laying around and the pressure is way up in the red? With compressor on!

Any advice. Thanks guys!

pdxmotorhead

Your expansion valve may have clogged. Noisy AC never gets better with time.

B52bombardier1

And I would not run it like that because it is sending metal chunks from the compressor through your system. It is probably going to need a flush and a new condenser because I don't think some of them can be flushed - tubes are too small.

Rick