A/C Liquid line getting cold after Foil wrapped section.

[Frank Grasha]

A/C worked OK last summer When turned on this year It did not seem cold enough, Installed gauge at suction line and pressure was 65 lb ? Then i noticed the liquid line(which is usually hot) was getting cold right after the Foil wrapped section ?? Compressor is running constantly ? Now Today it made a loud groaning sound shut off immediately ? Any advice ?

 

[Shaggy]

A/C worked OK last summer When turned on this year It did not seem cold enough, Installed gauge at suction line and pressure was 65 lb ? Then i noticed the liquid line(which is usually hot) was getting cold right after the Foil wrapped section ?? Compressor is running constantly ? Now Today it made a loud groaning sound shut off immediately ? Any advice ?

Moved in correct section.

 

[Shadow_Death]

Maybe a bad or clogged Orifice Tube?



https://www.autoblog.com/2016/01/08/symptoms-of-a-bad-or-failing-expansion-valve-orifice-tube/

I'm no A/C Technician but it had me thinking.

 

[atom13]

Moved in correct section.

I'd remove the ac clutch fuse and check why it's constantly running.

1.Add dye check for leaks.

2.What I would do is to discharge the system. Replace orifice and dryer. Vacuum you can use a cheap harbor freight pump and replace refrigerant with correct volume.

3. If this doesn't work it could be clogged condensor, bad compressor or clutch.

 

[Elevated 2013]

Sounds like something is clogged. I would do what atom13 said. It also sounds like you might be a little low on R134a refrigerant.

 

[Tray Burge]

If your low on refrigerant, you have a leak somewhere, it doesn't just dissipate. I noticed some of my lines were sweating a few years back and knew that I was losing some efficiency through the condensation so I wrapped all the lines that were sweating with aluminum HVAC tape and boy what a difference it made in the cabin temperature! No more condensation either.

 

[DodgeTx]

replace the orifice tube line, and report back.

few reasons a compressor runs all the time, its charged perfectly and doesnt need to kick on or off, or someone has bypassed something in the past to make it do so, bad switch etc.