My a/c in my 1994 f-150 works part time. It has plenty of freon, by feeling cold air. The compressor does not kick in like it should. It cold take mins. before she comes on. I asked for advice what the problem could be and said sounded like the speed sensor, what ever that is, is bad..He had heard of this before and replace many of them in the Rangers... Can anyone tell me where this sensor is or has anybody had this problem and know the solution?
Thank you