I am having problems with brakes anyone can help me out??

I put a new brake pump and rear cylinders brakes and the brake pedal still going all away through. Anyone knows what could be the problem??
 

NJ93TY

Donating Member
Re: I am having problems with brakes anyone can help me out??

Did you bleed the brakes? Did you have this problem before you replaced those parts?
 
Re: I am having problems with brakes anyone can help me out??

Did you bleed the brakes? Did you have this problem before you replaced those parts?

Yes I bleed the brakes and i had the problem before replacing those parts i thought that by replacing them i will fix it but it didn't.
 

jpalmer

New member
Re: I am having problems with brakes anyone can help me out??

master cylinder sounds bad, or air still in the lines.
 

Don W.

Stab it and steer it
Re: I am having problems with brakes anyone can help me out??

a) Does the truck stop at all?
b) Can you pump up the pedal and will it then hold firm?
 

ty166

Donating Member
Re: I am having problems with brakes anyone can help me out??

still have the abs installed ? have you tried doing a line clamp test ?
 
Re: I am having problems with brakes anyone can help me out??

still have the abs installed ? have you tried doing a line clamp test ?

I have the abs installed and i don't understand about the line clamp test english is my second language but if can can explain to me i will be glad.
 

Don W.

Stab it and steer it
Re: I am having problems with brakes anyone can help me out??

You can pump the pedal and it goes all away down

If you pump the brakes and the pedal still goes to the floor then the master cylinder is probably bad. Try to explain the original problem first.

Also just to be sure, take the cover off the reservoir /* Style Definitions */ p.MsoNormal, li.MsoNormal, div.MsoNormal {mso-style-parent:""; margin:0in; margin-bottom:.0001pt; mso-pagination:widow-orphan; font-size:12.0pt; font-family:"Times New Roman"; mso-fareast-font-family:"Times New Roman";} @page Section1 {size:8.5in 11.0in; margin:1.0in 1.25in 1.0in 1.25in; mso-header-margin:.5in; mso-footer-margin:.5in; mso-paper-source:0;} div.Section1 {page:Section1;} -->[FONT=&quot][/FONT] (on top of the master cylinder) and make sure it's not empty. There are 2 compartments. Then have a helper press VERY SLOWLY on the pedal and see if you get little air bubbles or a little stream of brake fluid coming up from the bottom in both reservours.
 
Re: I am having problems with brakes anyone can help me out??

If you pump the brakes and the pedal still goes to the floor then the master cylinder is probably bad. Try to explain the original problem first.

Also just to be sure, take the cover off the reservoir /* Style Definitions */ p.MsoNormal, li.MsoNormal, div.MsoNormal {mso-style-parent:""; margin:0in; margin-bottom:.0001pt; mso-pagination:widow-orphan; font-size:12.0pt; font-family:"Times New Roman"; mso-fareast-font-family:"Times New Roman";} @page Section1 {size:8.5in 11.0in; margin:1.0in 1.25in 1.0in 1.25in; mso-header-margin:.5in; mso-footer-margin:.5in; mso-paper-source:0;} div.Section1 {page:Section1;} -->[FONT=&quot][/FONT] (on top of the master cylinder) and make sure it's not empty. There are 2 compartments. Then have a helper press VERY SLOWLY on the pedal and see if you get little air bubbles or a little stream of brake fluid coming up from the bottom in both reservours.

We were doing an off frame restauration, we have been working on the truck for the past 5 years, know we are finishing the truck and we put a new pump brake and the rear cylinder and the pedal still goes all away down, you refer to the master cylinder is the (abs system located at the left fender)??
 

Don W.

Stab it and steer it
Re: I am having problems with brakes anyone can help me out??

We were doing an off frame restauration, we have been working on the truck for the past 5 years, know we are finishing the truck and we put a new pump brake and the rear cylinder and the pedal still goes all away down, you refer to the master cylinder is the (abs system located at the left fender)??

Did you do what I suggested by looking in the reservoir?

Also check that there is a small amount of "free play'" or free pedal travel in the brake pedal. This means that you can move the pedal a slight amount before it pushes on the master cylinder.
 

WyoSyclone

Active member
Re: I am having problems with brakes anyone can help me out??

When you bled the brakes, how many times did you have to fill up the brake reservoir?
 
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