1994 Chevrolet Silverado sticky brakes

have a pro check to see if there is an abs problem also see if your calipers move smoothly in the brackets as well as the pads.

I have iv let press off pedal by the release valve on the caliber. then pressed the pedal and they stick. I start the engine and still they stick. where is the abs computer located

normally that problem that you have is the brake hoses leading to the caliper but you said you replaced them so that kinda leaves things out. The abs unit has to be scanned an dthere isn't much you can do with it other than remove it and you can't do that as your brakes won't work. The abs is mounted to the side of the master cylinder. It may be the master cylinder but that is just a guess as I would really need to see it physically to further diagnose this. I suggest you have a pro look at this.