'86 E350 Low Pressure A/C Port Location

[mbolton1990]

Having trouble finding the low pressure port so I can put some freon in.

Call me a dummy but the only fitting I found was between one of the compressor lines and the drier, normally that's the low pressure side but on this van it has a high pressure fitting on there.

What the heck?

Anyone have any knowledge on these vans?

 

[pickupman]

Might right where the lines attach to the compressor if you happen to have dealer A/C.

 

[mbolton1990]

Thanks,
I figured it out,the low-pressure port is directly above the IP on my van. Weird, here's a pic of it. I snuck my phone in the engine bay and snapped this.

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Bad news is the compressor wouldn't engage after a can of Freon, the gauge went up to 55psi which was the beginning of the danger zone so I pulled it off.
And my climate control is still stuck on defrost no matter what I select on the climate control.

Hmm,more work to be done but hopefully this'll help someone out!

 

[79jasper]

Sounds like a vacuum line might be broken.

Sent from my SAMSUNG-SM-G935A using Tapatalk

 

[mbolton1990]

Yea that's very possible.
When I first bought the van it had a really bad vacuum leak,I tested vacuum at the tree and sourced it down to the vacuum canister for the cruise control (coffee can) I swapped it out with a known good one that holds vacuum and it definitely helped. Brakes aren't near as spongey anymore,but the climate control still doesn't work right.