Was the system bled using the procedure in the GM service manual? A lot of vehicles with ABS have to be bled using the correct procedure (sometimes involves using a scan tool to set the ABS system into a special "bleed" mode) to get the system to bleed correctly and give you a normal pedal when done.
I'm not sure if this is the case with GM trucks with rear ABS (I had a number of 2500 series 4WD Chevy pickups of that vintage at a company I used to manage but I had the brake work {and yes, the damn things ate brake parts like a pig eats corn, especially front pads) done by an outside shop.
Regards, Bill Bowen Sacramento, CA
OH $*&# I was afraid of somthin like that any ideas on findin this procedure ?
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