1989 Chevy 3500 brake question

Getting good juice to the right front.
Very soft pedal when the bleeder is open (like it should be).

On left front I disconnected the line completely from the caliper and the pedal is still very hard to push down, just like it is still connected to the caliper. It should be running fluid all over, just like the right side.

The master cylinder doesn't know if the fluid is going to the left or the right caliper, so I am guessing something might be screwed up in the ABS module.

What do you think?

Thanks and Merry Christmas.
Rick

But tonight, I"ll start working my way towards the master cylinder. I"ll disconnect the line at the frame. That"ll answer if the rubber line collapsed, then up to the ABS and master cylinder.

Some asked, I am pretty sure the truck has ABS, it does not have wheel speed sensors like the new trucks. I think it is a 3 channel ??, 1 line to each front brake and 1 line to the rear.

I will post back as soon as I figure it out.

Thanks,
Rick

Don't think that '89 tonner even has 4-wal does it? Think they're just that simple old 3-wal front/aft system?

Sure sounds like a bad hose to me, but I'm not the one skidding on the ice neither. :>)

Allan

2.) That's EXACTLY what how things act when the inside of the brake hose doubles up inside.

Like the other poster said, disconnect the hard line "inboard" of the hose, and see if you get a soft pedal and a gush of fluid when the pedal's depressed.

Post back, and let us know what you find!