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Aug 23, 2021 | 07:42 PM

#16

jav_eee

Thread Starter

Laughing Gas

Joined: May 2017

Posts: 969

Likes: 30

Quote:

Originally Posted by 99f350sd

Best to have it evacuated and all the moisture boiled off and recharged to make sure the amount is good....Back in the day I would charge till the return line at the compressor was getting cold... Its easy to over charge. Temps will go down if you do.

did that. Vacuumed (vacuum running) to 29 in/hg for an hour. Filled with 42 ounces. Blew warmer than it does now running a few ounces less.

I’m convinced it’s the cooling fan. Even though I’m seeing 850ish RPM at idle. There’s not enough air moving over the condenser. It’s currently about 92 degrees outside and I’m idling with 42 degree vent temps on the 2nd fan speed setting. On 3 it comes up to 44. I’m calling it good with current charge and all that.

Aug 23, 2021 | 08:23 PM

#17

Fefanatic

Fleet Mechanic

Joined: Jan 2016

Posts: 1,804

Likes: 113

42 fluid oz or 42 weight oz? Either way 42 sounds high. You can't go by can fluid oz volume. It is weight and not fluid oz. I think you are way overcharged.

Aug 23, 2021 | 11:40 PM

#18

AK4x4

Tuned

Joined: Jan 2002

Posts: 409

Likes: 106

From: Wasilla

I think this will be your solution; [YB-3013]Motorcraft cooling fan clutch(YB3013/4C3Z-8A616-SA) (dieselfiltersonline.com)
Good Luck, Russ

Aug 24, 2021 | 06:52 AM

#19