Fords had that problem of either low charge or bad cycling switches. What happens (low charge) is the refrigerant system will quick cycle when going down the highway. At idle the temps will be fine. The first thing to do when you have most AC problems is to verify the correct charge.. and thus elimi...

Did you recover and recharge to factory specs? Sounds like a refrigerant charge problem.

VOV's work better for low speed as in a mail delivery vehicle. For regular operations, just use a regular orfice tube. Superheat is not used in MVAC due to the ever changing conditions.

Also make sure the fans are turning in the correct direction.

airflow across condenser

You can not get an accurate temp using an infared thermometer due to emissary problems. Depending upon the reflectance of the metal the reading will vary. That is the reason why it is suggested to "shoot" an area that is black. If you shoot an area that is shinny, both in and out of the ac...

bohica2xo wrote:A cold accumulator with 74f discharge air indicates some blend air entry.

I agree 100%. Block off or by-pass the heater core.

Sometimes to find a leak you have to be inventive. Remove the belt and place a shower cap ( usually the GF or wife's) around the front of the compressor. Came back four of five hours and place your sniffer in there and see if it goes off. Sometimes when you can not find a leak it is the shaft seal. ...

People that keep venting refrigerant into the atmosphere are going to get caught and fined. Refrigerant needs to be recovered not vented.

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