I hate to bring this old thread back to life, but this problem persisted after topping off the brake fluid. I ended up taking it to the dealership and they pulled a few codes from the right rear abs sensor and they also said the bearing was bad back there. They wanted $1,500! for the repairs and there was no guarantee that this would fix the issue. So, I got a list of all the parts they wanted to replace and ordered through their parts department where they only charged me $500 for the parts. Ended up doing the work with a fellow board member (Polak), although we had to take the rear axle to a local machine shop to get the retainer ring cut off and pressed back on ($50). We did everything else ourselves.
Unfortunatley, this didn't resolve the issue. I took it back to the same dealership to run more diagnostics, there were a few more things they suggested doing, i.e. changing the battery (low voltage signal) and the front left caliper. The previous owner or mechanic put an oversized caliper on this side so the entire pad wasn't on the rotor.
At this point I wanted a second opinion. Thankfully, I have a co-worker who has a family member that works for a dealership as well. He agreed to look it over. He made some suggestions. which included everything the dealership said in addition to both front bearings.
After changing all of these things I still had the error codes, so it went back to the dealership and after diagnostics they suggested replacing the rear right wiring harness for the ABS and a Zero Point calibration.
Well, that did it! So once it's all said and done here is the grocery list of things done:
Rear right bearing
Rear right ABS sensor
Both front bearings
Front Left Caliper
Front brake pads
Resurfaced rotors
Battery
Rear right ABS wiring harness
Zero Point Calibration
Pretty much a brand new truck. At least the ABS is functioning before winter. Puts me at ease with the wife driving with the little one.
