Hello, I havent had a/c in a yr or so, so I figured d recharge my system. I got the system recharged and there was still over 1.5 lbs in the system. Got the systemre charged to 2.5 lbs and everything worked great for about 3 months. My compressor got louder when my a/c was turned on and eventually the air wasnt very cold. Today I turned my a/c on and the truck would stall if I were idling. I am not sure why the truck stalls, is my compressor starting to seize? I unplugged the the compressor so it wouldnt engage anymore. Should i try recharging it again or should I just change the compressor? I have a howling sound inside the truck now, almost sounds like the fan is on but its not. If i change compressors how hard is it? thanks

 

it hows with the compressor unplugged? is the compressor pulley spinning? It may be locked up.

what kinda noise was the compressor making when it started to get louder before the stalling issue?

if the compressor has failed internally you need to have the system professionally flushed along with replacing the orifice tube and dryer at a minimum.

 

Either the A/C clutch is bad, or the compressor itself is bad. Take it to an AC shop and have it properly diagnosed. I would not run the A/C until it's fixed, as your asking to burn the belt on the clutch. I'd even go so far now as to replacing the belt once the A/C clutch/compressor is repaired.

 

yes with the compressor unplugged it still makes a howling sound. When I turn on my a/c the truck starts to stall, pretty sure the compressor is starting to lock up. The compressor was starting to get louder over the course of the past few months as i ran out of refrigerant it seemed. I think I am gonna order all my parts. Has anybody removed the compressor before? thanks guys

 

Removing the compressor should be done by a professional, as it is illegal to vent the refrigerant into the air. Unless something has changed It must be collected before the lines are disconnected. If you already have the compressor then your just looking at labor and disposal fees.

 

if the compressor was making noise (ticking/knocking) then I would have a shop do it, if you dont get the system clean you WILL lose another compressor and have to start from scratch. The problem with supplying your own parts is you dont get the benefit of the shop warranty in most cases. If they install your stuff and something fails youre paying the labor charge over again. If they install their parts their warranty should cover the parts AND labor. I got bit by this when the seal on the shaft to the pulley failed on the compressor I supplied.

 

I have access to a a/c machine that recovers and vacuums the system. I cant afford to have a shop do it because I am a student and could only do it myself. I know for a fact the bill would be around $1000 and I can easily get all my parts for under $200 from rockauto. Does anybody have any advice on flushing the system? thanks

 

Don't forget a new dryer too; anytime there's the possibility of an open A/C system, or compressor internal damage, the dryer must be replaced.

The "A/C machine" should be able to flush the system out as well, depending on it's age/quality.

 

its kind of hard to say how hard the flush job would be..just using the cans you pressurize with an air hose its hard to do a good job. It may be easier/safer to replace the condensor instead of trying to flush it. This way you would only need to flush the lines themselves