My 1999 ford escort air conditioner quits working after driving for a while. It works fine when I first start up in any cooling mode. However, after sitting in traffic or parked and idling it quits cooling in all modes until the car is turned off and sits for a couple of hours.

blower motor works, the engine cooling fan behind the radiator works, I don't see a fan behind the bumper. am I missing something? blower motor works, the engine cooling fan behind the radiator works, I don't see a fan behind the bumper. am I missing something?

their is a fan in front of the radiator,but build models can vary acording to country ,so if it has only one fan then as soon as AC is turned on it should start running ,if it is then you have a problem elsewhere like a compressor clutch has weak windings that are shorting out when hot so not pulling the clutch in properly but then it would start slipping and you notice something ,is the radiator in front clean and free of dried bugs their is a fan in front of the radiator,but build models can vary acording to country ,so if it has only one fan then as soon as AC is turned on it should start running ,if it is then you have a problem elsewhere like a compressor clutch has weak windings that are shorting out when hot so not pulling the clutch in properly but then it would start slipping and you notice something ,is the radiator in front clean and free of dried bugs