AC leak in rear of 2007 exp

[Sgt Darkness]

No, don’t add refrigerant until you get the leak located and fixed. They also make a can of stuff that will bubble up on the leak area so you can find and repair it. Prob a O-ring needs to be replaced but that’s no problem.

 

[stamp11127]

If you blow air into the system you are also adding moisture to it. We use nitrogen instead during the ac class. If you decide to use air make sure you vacuum the snot out of it to pull the added moisture out.

 

[1955moose]

Just figured air is easiest I most garages. Definitely drain your air tank on compressor at least twice. Lot of water and gunk settle down there. Ideally a body painters air filter in line would be a good idea. You'll feel or hear the leak when you find it.

Sent from my N9131 using Tapatalk

 

[TonyS]

Hi . Still cnt locate leak. We can hear it. Could it be leaking internally in the rear evaporator.?? I hearing the hissing.

 

[stamp11127]

Time to shoot dye in and hit it with the uv lamp.

 

[TonyS]

We did . 2x.
We can hear it but cant see it or any signs of dye. Could the evap be leaking Inside? We opened the casing and found no residue of the dye

 

[stamp11127]

Sniffer time then. You can have a leak just about anywhere.

 

[Motorcity muscle]

Seem to remember a common leak point was the lines near rear wheel. Rubbing together or on the frame.

 

[Jeff Thrash]

Did anyone figure this issue out? I have a 2011 and I am having same issue. Hissing noise coming from the passenger rear in the hatch area. I didn't hear the clicking noise but changed out the mode door actuator anyways. Still hissing. Everything seems to be blowing fine but not cold air, and more like room temp. Could it be the evaporator or the evaporated valve?