I've been having intermittent (at times constant) problems with my ABS for quite a few years. Every time I thought I had everything sorted out, a few days later, I would be reminded that the ABS system still wasn't happy. You know, the system engaging when coming to a stop (and not stopping the truck until it seems I'm halfway through the intersection), the abs pump kicking in when accelerating and hitting a bump, the ABS light being on constantly, and so on.
Well, since my grief was always coming from the driver's side front/rear, I took some extra care one day did a little sleuthing. I discovered that both of the sensors have bad wiring (or connection). Checking resistance and moving the wires caused a big change in the ohms. However, I also noticed that both front and rear sensor wires were no longer attached to the suspension with their zip ties. I moved the wires and zipped them down in a manner that keeps them from bending and losing their continuity.
A week later, and still no (wierd) ABS problems... no faults, no odd pulses at strange times, abs light stays off...
Well, since my grief was always coming from the driver's side front/rear, I took some extra care one day did a little sleuthing. I discovered that both of the sensors have bad wiring (or connection). Checking resistance and moving the wires caused a big change in the ohms. However, I also noticed that both front and rear sensor wires were no longer attached to the suspension with their zip ties. I moved the wires and zipped them down in a manner that keeps them from bending and losing their continuity.
A week later, and still no (wierd) ABS problems... no faults, no odd pulses at strange times, abs light stays off...
