ABS and parking brake came on when I started the truck today. Brake pedal seems to be 'soft'(Has a lot of travel before the brakes kick in). So new brakes, sensor, line, more fluid? It has gotten really cold really quick so I don't know whats the issue. Worked just fine two days ago (pedal travel seems the same if not a little more than normal though.

 

Start easy check your fluid then bleed them

 

I would hate to do a bleed at this time but since it dropped 30 degrees over night I figure that might have something to do with it. Northern Illinois weather for ya.

 

Looks like one of my rear drums too a crap on me. Took her into the shop since I am not going to mess with brakes right now until someone can teach me. Hoping its done monday or tues.

 

You could have had water in the fluid too. But best of good luck hope it's a cheap fix

 

On my 90 it was the Rear ABS/ Vehicle Speed Sensor.