As the subject line says, I have a 1990 E-150 van with the towing package, a
351FI, and an E4OD transmission. By what means are the shift points determined? Does this transmission use a VSS on the speedometer output? The van today was staying in 1st gear too long before shifting, requiring me to shift it to 2 manually.Also the ABS light is on for the rear ABS system. I had assumed that the sensor for that was on the rear axle, but could the two problems be related?
Thanks,
CJB