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A/C 134a Leakage

punchback on Sat July 09, 2011 5:23 PM User is offline

Year: 2000
Make: Ford
Model: Focus
Engine Size: 2.0 DOHC
Refrigerant Type: 134a
Ambient Temp: NA
Pressure Low: NA
Pressure High: NA
Country of Origin: United States

Well I posted recently regarding my 2000 ZTS losing its 134a refrigerant. I do have a leak at the condenser connection from the compressor. That’s a story in itself as I cannot make it quit leaking. I’ve been reading many forum posts regarding A/C systems losing the 134a. So many that I can’t remember where I’ve read what, but someone mentioned looking at the condensate drain hole under the car for evidence of dye. Well I got under the car today and found what I believe is the drain. It’s a little black stub coming out of the passenger compartment, behind and above the assembly that’s attached to the front control arms. On it my UV light shows the dye traces that I didn’t want to see.

Would anyone agree that this is the proverbial smoking gun, all but confirming, that the evaporator is leaking??

fonebone on Sat July 09, 2011 6:20 PM User is offline

Hi Punchback-Looks like you've done your homework. That's a sure sign of a leaking evaporator. Can you locate a friend with a leak detector? Stick the probe in the center vent and it should go ballistic, indicating a leak. That UV on the drain is the clincher , though. That sure is the last place anyone wants to see a leak. Most are a real PITA to R/R.

punchback on Sat July 09, 2011 7:19 PM User is offline

During this process, after doing something and recharging the 134a, I've notice an oily sheen on the water leaking out of the drain onto the garage floor. It occurred to me that it may be the evaporator but I think I was in denial. I have the skills to replace the evaporator but I really DO NOT want to do it.

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