speedometer
 

I have a 1997 explorer V6, automatic trans, 2 wheel drive, 4 wheel ABS. The speedometer goes to 0 after about 20 min of driving, the next day it works again in the morning then out again. I changed the VSS on the trans housing (the geared type) but that didn't fix the problem. The cruse control works fine and no problems with the ABS system. Any suggestions?