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Dillon79scotts · 10-10-2011, 01:14 AM

I recently replaced my 1/2 running gear for 3/4 ton. bled the lines, and seems to not have very good brakes, pedal went to far and it steered bad.

got a new MC and bled it, then bled my lines again. will build pressure great and then you let off for about 3 seconds, and go to push it in again, and it hits the floor for like 5 pumps..

checked for leaks everywhere, replaced MC again (warranty). TRIED starting the truck, and did no difference. i figured if one of my lines were leaking i would still have brakes on either front or rear but i lose them all. so im thinking its the proportioning valve back to the MC somewhere.

has anyone ran into this problem? my flare fittings look fine also

10-10-2011, 01:14 AM	#1
Dillon79scotts Registered User Join Date: Jun 2011 Location: Kennewick, WA Posts: 115	79 4x4 1/2 to 3/4 brake issues I recently replaced my 1/2 running gear for 3/4 ton. bled the lines, and seems to not have very good brakes, pedal went to far and it steered bad. got a new MC and bled it, then bled my lines again. will build pressure great and then you let off for about 3 seconds, and go to push it in again, and it hits the floor for like 5 pumps.. checked for leaks everywhere, replaced MC again (warranty). TRIED starting the truck, and did no difference. i figured if one of my lines were leaking i would still have brakes on either front or rear but i lose them all. so im thinking its the proportioning valve back to the MC somewhere. has anyone ran into this problem? my flare fittings look fine also