brake problems - The 1947 - Present Chevrolet & GMC Truck Message Board Network

mrsmothers · 01-09-2011, 05:23 PM

Well I got my truck back from the shop it runs but dosent stop. It had been sitting since 06 and well it has no brakes I just replaced the master cyl but still no brakes. I havent found any leaks in the system next but I am not getting any pressure on the brake peddle. What should I do next?

JimKshortstep4x4 · 01-09-2011, 06:37 PM

Did you bench bleed the MC and bleed the wheel cylinders?

Jim

mrsmothers · 01-10-2011, 03:09 PM

I didnt bench beed the master cyl and havent got a chance to bleed the lines we had a cold front come in everything is frozen. I didnt know you had to bleed the mc can you do it with it on the truck or do I have to take it off ?

clear · 01-10-2011, 03:22 PM

I am in the process of replacing my booster and MC on my truck. Every thing I have read says bench bleed before installation. Here is in interesting article. http://www.superchevy.com/technical/...nch/index.html

Murphy IRE · 01-10-2011, 11:02 PM

There is a kit that comes with some MC or they can be purchased. It allows you to bleed the MC in place. I just did it on mine. The plug has a small nipple for attaching tubing. Route the tubing back into each compartment. I used binder clips to keep the tubing in place. Pump slowly and it will cycle the air out. It was really easy. Then I started to bleed the lines by pumping, but switched over to gravity bleed (one man show).

01-09-2011, 05:23 PM	#1
mrsmothers Registered User Join Date: Oct 2010 Location: ruston la Posts: 169	brake problems Well I got my truck back from the shop it runs but dosent stop. It had been sitting since 06 and well it has no brakes I just replaced the master cyl but still no brakes. I havent found any leaks in the system next but I am not getting any pressure on the brake peddle. What should I do next? Last edited by mrsmothers; 01-09-2011 at 05:24 PM.

01-09-2011, 06:37 PM	#2
JimKshortstep4x4 Senior Member Join Date: Jul 2001 Location: Muskegon,MI,USA Posts: 6,026	Re: brake problems Did you bench bleed the MC and bleed the wheel cylinders? Jim __________________ 1971 Shortbox step side 4x4, 350 sbc, 3:07 rear end 1965 Impala SS 400 sbc, Muncie rock crusher 1966 Impala SS 396 bbc, TH 400 1969 El Camino, 350 sbc, TH 350 1971 Snowplow built on a Blazer frame 1972 GMC Short bed, stepside, TH 400, 427 BBC

01-10-2011, 03:09 PM	#3
mrsmothers Registered User Join Date: Oct 2010 Location: ruston la Posts: 169	Re: brake problems I didnt bench beed the master cyl and havent got a chance to bleed the lines we had a cold front come in everything is frozen. I didnt know you had to bleed the mc can you do it with it on the truck or do I have to take it off ?

01-10-2011, 03:22 PM	#4
clear Registered User Join Date: Aug 2009 Location: NM Posts: 46	Re: brake problems I am in the process of replacing my booster and MC on my truck. Every thing I have read says bench bleed before installation. Here is in interesting article. http://www.superchevy.com/technical/...nch/index.html

01-10-2011, 11:02 PM	#5
Murphy IRE Registered User Join Date: Oct 2009 Location: South Denver Metro, CO Posts: 385	Re: brake problems There is a kit that comes with some MC or they can be purchased. It allows you to bleed the MC in place. I just did it on mine. The plug has a small nipple for attaching tubing. Route the tubing back into each compartment. I used binder clips to keep the tubing in place. Pump slowly and it will cycle the air out. It was really easy. Then I started to bleed the lines by pumping, but switched over to gravity bleed (one man show).



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