The 1947 - Present Chevrolet & GMC Truck Message Board Network - View Single Post - Project 67 DRGNWGN

**kev2809** · 01-20-2023, 12:49 PM

well with the truck off i can press the pedal down (it is stiffer than when the truck is on) and it returns normal. it only does it when its running, i bench bled the master cylinder, then i bled the truck twice. i mean, i guess it could still be air but idk.

i popped the hood today and noticed theres a leak between the master and booster. the master i bought here off the board brand new, believe it was old stock. im thinking maybe a new booster and master is something i might be buying......again

im wondering if ONLY the master cylinder leaking could be causing the slow pedal return...i just dont want to have to pull the master, replace it, bleed out the system...only to realize the booster was bad too lol

01-20-2023, 12:49 PM	#938
kev2809 low n' slo Join Date: Mar 2009 Location: rosenberg, texas Posts: 5,134	Re: Project 67 DRGNWGN - 67 Burban!! well with the truck off i can press the pedal down (it is stiffer than when the truck is on) and it returns normal. it only does it when its running, i bench bled the master cylinder, then i bled the truck twice. i mean, i guess it could still be air but idk. i popped the hood today and noticed theres a leak between the master and booster. the master i bought here off the board brand new, believe it was old stock. im thinking maybe a new booster and master is something i might be buying......again im wondering if ONLY the master cylinder leaking could be causing the slow pedal return...i just dont want to have to pull the master, replace it, bleed out the system...only to realize the booster was bad too lol Attached Images __________________ 67 1/2 ton Suburban - Project DRGNWGN. Build thread -_--_--_ _________ _--_-_ -/____\|__\|__\__ ,.,,,.,.,,.,\|_O _______ O_]