1999 Ford F150 AC

1999 FORD F-150
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JEFFX153
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Air Conditioning problem
1999 Ford F150 6 cyl Two Wheel Drive Automatic

The following is exactly what has been happening to me for about 1 month now.

gorka5, I have a 98 f150 4.6 v-8 95,000 miles and have the exact same problem. Mine also starts off cold but when I give it gas to take off it starts getting hot. But not always,,just sometimes. If I come to a stop and turn off and on the air it gets cold again and may stay cold the rest of the day it just varies. I think there is some short somewhere. I would like to here from anyone with any ideas also.

If I try to put heat on? When I turn temp to Hot.. seems like there is no change in temprature. Everything has been working properly since I've owned this truck. This all started about 1 month ago. Also Unit is properly charged, and is very cold, when working. Temp sensor somewhere malfunctioning?

Thanks.. I live in Florida, and were almost into summer, Please help
Apr 15, 2009 at 2:12 AM
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JAMES W.
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If you can hook the acup to a set of gauges and watch your high side pressure, you may find your expansion valve is sticking open. This can happen intermitently.
Apr 15, 2009 at 9:42 AM