Hello Rodolfo, my name is Luis, in Mexico as well, but I write in english to be respectful to other readers. I have had the same problem several times. The first time, the Ford dealer in Saltillo, Coahuila took care of it, and explained to me that the Jack valve had to be replaced. The second time, about 20 months after the dealer replaced the valve the first time, the problem reappeared. I went to an independent garage in Ciudad Juarez... same diagnosis, same solution... replace the Jack Valve. Ran Ok for about 20 months. It is doing it again now, so I just bought the valve again. This time, I'll replace it myself. It doesn't look like it is complex. I know I have to disconnect the battery before removing the electric plug of the valve, and then unbolting it. I don't know if there is any calibration, or adjusting needed though. It doesn't look like it does, but if anybody out there knows, I would appreciate some comments.
Luis G. Guajardo
April 2006
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