can someone explain the rear abs on a 87 bronco? the rear barkes have been completley rebuilt. cannot understand why then dash light is on..any suggestions?

 

I had a 88 bronco that had the same problem and after rebuilding brakes front and rear, I still had the problem, I went to a VERY good freind of mine that is a Lead Tech at a local Ford Dealership and he told me that there is a small PUMP that went out. The pump was located on the inside of the frame towards the rear. WARNING this this was almost $300.00! It was no problem changing it, 3 bolts and a few lines, DONE!!! But at the time it was a DEALER item, you may want to check your local NAPA or other parts house. Good Luck and let me know how you turn out!!!
Later,

"the first leters in fearsome is FE!!!"

 

You can pull the trouble code from the RABS module quite easily. If you ground the pigtail wire next to the brake/clutch pedals with the ignition on, the ABS light will produce a series of flashes to indicate the code. I have a list of codes in my manual, and you can also find them by doing a search on "Ford RABS" on the internet. This will help you to find the culprit. My '88 F-150 had a bad RABS computer. I have also heard the rear wheel speed sensor going bad quite often. They are about $12.

Aaron D.