[GSX4]

It was a bad master cylinder. I found a rebuilt master cylinder/ABS unit for $340 and reused the black ABS module (the black plastic box with 3 cogs that mesh into 3 gears on the ABS pump.) from teh old unit. It was a straight swap. Took me roughly 2 hours including a trip to sears to buy a 12mm no round off wrench as the brake wrench stripped one of hte nuts! Anyway, I managed to crack them all loose, and then it was easy progress until it was time to blee the brakes. I tried bench bleeding the new unit as stated in my Haynes manual. That seemed to work. Then I bolted the unit in, and attached my Motive Power Bleeder. I pressurized the system to 15 pounds and started the usual trip around the car to bleed the zerks starting with Master cylinder first, then rear right, rear left, front right, and front left, then back thte ABS again. I could not get anything out of the rear zerks for some reason. After calling it quits, I limped the car to a garage the next day, and they were able to do a power bleed for $50 and it was as good as new again. She is alive!