when you mash brake padel air comes back through mastercylinder has new master cylinder
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1990 Chevrolet 1500 Pickup Question: brake master cylander
Answer #1Chevy Power August 02, 2012, 10:17Journeyman
What do you mean air comes back through master cylinder? Was it bench bleed before it was installed?
Answer #2ziptie12 August 05, 2012, 02:24Master
Did you replace just the master cyl. or did you do the booster also?
Replygearhead89, June 10, 2013, 13:38Technician
and is their a bad hose or line. causing a leak