does anyone have any good information on repairing your own ABS module? or has anyone done it themselves? another post got me to thinking if you send it off and pay $150 to get it rebuilt why cant you rebuild it yourself? mine has beed unplugged for over a year because the pump motor wouldnt stop running. Im going to post in a few forums to see if I get any good info

This post has been edited by jennkent5454: Feb 7 2010, 02:41 PM

ABS modules have patented parts, so the last I heard there weren't any aftermarket suppliers selling kits for them. Check with your local or web auto supply yourself. The USA has become such a lawsuit driven economy that few manufacturers are willing to bet the company on anything new, especially where safety is concerned. If you find a supplier, let us know how you did. I'm sure the inspection standards for cylinder diameter etc are important, as is cylinder finish, so just putting in a few rubber O-rings won't begin to do the job professionally.

I'm not sure about the new units, but the originals used very high-pressure systems and were dangerous to work on unless you knew how to de-pressurize them. Also the clearances were in the ten thousandsths of an inch range so any imperfections, rust pits or contamination would be enough to cause failure. As I said, that was over ten years ago, maybe the new ones aren't so hard to work on but the parts may be impossible to find.

The pressures ABS ;runs at are the same. There is a Thunderbird post that shows high pressure hydraulic hose connectors the poster can't find at the auto supply. That pressure means cylinder dia and finish, and piston diameter are very important, unlike low pressure drum brakes where the rubber will take up the slop. There are a lot of front end loaders etc for sale with "freshly rebuilt cylinders", that don't work properly, the problem is the same. Many can install the parts, but few are the mechanics that will take the measurements to do high pressure hydraulics correctly, If a high pressure cylinder is belled at the end, or pitted slightly, refinishing it involves an expensive machine and an oversize piston, not a 10 minute job with a hand drill and a hone.