Well i just bought this truck and been chasing a problem.First off the trans shifts extemley hard from first to second shift,the speedometer doesn't work but tho odometer does,and i'm getting a ABS warning light on.Now i changed the speed sensor,gauge cluster and the ABS module and still the same thing.All the wiring looks good and seems to check out ok with a ohmeter.I feel i'm running out of options here anyone have any sugesstions?
Never mind found the problem ,after checking the thing over today i found the problem. High resistance on the green wire for the speed sensor on the rear end running from front to back on the truck.Wohooo everything is good now
