Originally Posted by
night
I have seen mention of proportioning valves 'going bad', but after 15 years of working on cars professionally I have never seen such a thing.
I did a complete brake job on my car (88/9 LXi swap, new calipers, rotors, lines) and in bleeding the brakes the pressure is rather low. It should squirt a stream out but just dribbles. I have not yet changed the master, but their is no indication there is anything wrong with it and the slight diameter difference can't explain this.
Is this scenario familiar to anyone else? The brakes feel good, but don't have the bite they should with what I assume should be more pressure. Oh, and the rear rotors I took off were rusty after an 1800 mile drive home. The pads were never really in them. It doesn't seem like the calipers/lines changed this much.