master cylinder question - The 1947 - Present Chevrolet & GMC Truck Message Board Network

4matty3 · 03-31-2011, 01:19 PM

there is only brake fluid in the front section of my cylinder. is it suppose to be filled up in the back section too?

Katrina/10 · 03-31-2011, 01:20 PM

Yes, there is!

4matty3 · 03-31-2011, 01:28 PM

thank you! hopefully that is the reason why my brakes are so soft. (sorry for the rookie question)

bundeber · 03-31-2011, 01:29 PM

One reservoir is for front brakes and the other is for the rears.... My guess is you have a leak somewhere. This is designed this way so that if you do have a leak, which it appears you do, you still have one set of brakes to stop you.

4matty3 · 03-31-2011, 01:44 PM

ok thank you. the rear didnt have any fluid in it at all and when i hit the pedal it goes straight to the floor. now what?

HARJO · 03-31-2011, 01:59 PM

Quote:

Originally Posted by 4matty3

ok thank you. the rear didnt have any fluid in it at all and when i hit the pedal it goes straight to the floor. now what?

Grab a buddy to help bleed the brakes. Start with the farthest from the master cylinder, work to the closest. If you're really really new to working on stuff, there are some quick how-to's on youtube.

cdowns · 03-31-2011, 03:43 PM

in that case your brake warning light should b coming on

try bleeding them but more than likely you have a leak and wood need to find and repair

dads longhorn · 03-31-2011, 04:13 PM

The pedal pressure in my 1971 was unreliable to the max. One time the brake light did come on. (Both resevoirs (sp) had fluid though)Took it in and got a new master cylinder, The mechanic said rebuilt master cyc are unreliable. drain all lines, refill. So far so good. FYI

03-31-2011, 01:19 PM	#1
4matty3 Registered User Join Date: Mar 2011 Location: pittsburgh Posts: 39	master cylinder question there is only brake fluid in the front section of my cylinder. is it suppose to be filled up in the back section too? __________________ 1971 c10

03-31-2011, 01:20 PM	#2
Katrina/10 Registered User Join Date: Oct 2010 Location: Ocean Springs, MS Posts: 1,746	Re: master cylinder question Yes, there is! __________________ Gary 1971 Chevrolet C/10 1951 GMC 100 1977 GMC C15 1955 Chevrolet 3100

03-31-2011, 01:28 PM	#3
4matty3 Registered User Join Date: Mar 2011 Location: pittsburgh Posts: 39	Re: master cylinder question thank you! hopefully that is the reason why my brakes are so soft. (sorry for the rookie question) __________________ 1971 c10

03-31-2011, 01:29 PM	#4
bundeber Registered User Join Date: Apr 2009 Location: Cody, WY Posts: 292	Re: master cylinder question One reservoir is for front brakes and the other is for the rears.... My guess is you have a leak somewhere. This is designed this way so that if you do have a leak, which it appears you do, you still have one set of brakes to stop you.

03-31-2011, 01:44 PM	#5
4matty3 Registered User Join Date: Mar 2011 Location: pittsburgh Posts: 39	Re: master cylinder question ok thank you. the rear didnt have any fluid in it at all and when i hit the pedal it goes straight to the floor. now what? __________________ 1971 c10

03-31-2011, 03:43 PM	#7
cdowns Senior Member Join Date: Jan 2003 Location: daytonabeach Posts: 22,956	Re: master cylinder question in that case your brake warning light should b coming on try bleeding them but more than likely you have a leak and wood need to find and repair __________________ 71c-10 350/2004r/4:11 lowered3/4 longbed/dead by hurricane MEANING OF DEATH::::: SOMEBODY ELSE GETS YOUR STUFF DONT BELIEVE EVERYTHING YOU THINK TAKE MY ADVISE;I DON'T USE IT ANYWAY

03-31-2011, 04:13 PM	#8
dads longhorn Registered User Join Date: Mar 2010 Location: New mexico Posts: 369	Re: master cylinder question The pedal pressure in my 1971 was unreliable to the max. One time the brake light did come on. (Both resevoirs (sp) had fluid though)Took it in and got a new master cylinder, The mechanic said rebuilt master cyc are unreliable. drain all lines, refill. So far so good. FYI



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