Air conditioner works great gets cold stays cold (52 degrees) on first start of the day. The problem is that when I park for a short while (10+minutes) and then restart the air comes out cool for about 10 minutes then cycles to cold, cool, cold, cool, never stays cold and it never gets as cold as first start of day.
Anyone else having this problem? '03 F250 Superduty V10 4x4

 

you may have a low charge ! or a faulty cutout sw
Have you noticed while idling that the compressor is cycling alot ?
is this happening on max ac? or normal ac?

Rich

 

compresser seems to cycle more if I turn to max, and doesn't cycle as much on the normal setting. I've felt the two large hoses near the fire wall and they are both very cold but air out vent is just cool. I also have a smaller hose that is under the larger ones and it is warm to the touch.

 

I would have it chkd for a low charge. first .
then the cutout sw.

Its possible that the blend door in the heater /ac plenum is not closing properly!

We have had guys do a mod to there trucks when the ac didn't get cold enough .
the heater core has hot water flowing through it all the time .what they do is shut the water off via a valve when the ac is on then the ac gets colder.

But I don't think this your problem.

Rich

 

Thanks, I'll give it a try