Rear A/C Leak

Tiny
HEARDDB
  • MEMBER
  • 1992 FORD E-SERIES VAN
  • 7.3L
  • V8
  • 2WD
  • AUTOMATIC
  • 200,000 MILES
I have a refrigerant leak in one of the lines that goes to the rear unit but I don't know exactly where because the transmission is blocking the location. Can I service these lines from the top with the doghouse removed? The van was converted to R134 by someone else. I see near the rear AC there are service ports. Why are they there? Doesn't the whole system run on a single refrigerant circuit? When I recharged from the main ports under the hood, the rear AC worked fine except for the leak, so I don't understand why there are separate ports in the back. Also, these ports look like they are still R12 fittings, so they weren't retrofitted but I don't know why?
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Saturday, August 16th, 2014 AT 1:49 PM

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Tiny
KASEKENNY
  • EXPERT
These lines are able to be accessed from the dog house but we need to confirm they are leaking from there first.

Here are a number of guides that will help with this:

https://www.2carpros.com/articles/re-charge-an-air-conditioner-system

https://www.2carpros.com/articles/air-conditioner-leak-detection

https://www.2carpros.com/articles/car-air-conditioner-not-working-or-is-weak

Also, as for the questions on retrofitting the system, I attached the minimum requirements along with the optional info as well.

Please run through this info and let us know if you have other questions. Thanks
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Thursday, July 8th, 2021 AT 8:40 PM

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