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Chris

Chris 5/3/2018

1998 GMC C6500 Topkick C6H042 8 Cyl 6.00L

Brakes

How to bleed brakes.

How do i bleed the hydralic assist brakes. I blew a brake line and have it repaired but unsure how to go about bleed the brakes

2 Answers


Jimm

Jimm 5/3/2018

As a rule, the brake circuits on most vehicles with anti-lock brakes can be bled in the usual manner - provided no air has gotten into the ABS modulator assembly. If the only components you replaced were downstream of the modulator (calipers, wheel cylinders, brake hoses or lines), chances are normal bleeding procedures will clear the lines of any unwanted air.

Brakes can be bled manually, with a power bleeder, injector tool or vacuum bleeder. It doesn't make any difference which method you use as long as all the lines and components are flushed with enough fluid to remove any trapped air bubbles or air pockets.

The most common bleeding procedure is to bleed the brake (wheel position) furthest from the master cylinder first, then bleed the other brake that shares the same hydraulic circuit (which may be the other rear brake on a rear-wheel drive car or truck, or the opposite front brake on a front-wheel drive car or minivan).

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Jimm

Jimm 5/3/2018

As a rule, the brake circuits on most vehicles with anti-lock brakes can be bled in the usual manner - provided no air has gotten into the ABS modulator assembly. If the only components you replaced were downstream of the modulator (calipers, wheel cylinders, brake hoses or lines), chances are normal bleeding procedures will clear the lines of any unwanted air.

Brakes can be bled manually, with a power bleeder, injector tool or vacuum bleeder. It doesn't make any difference which method you use as long as all the lines and components are flushed with enough fluid to remove any trapped air bubbles or air pockets.

The most common bleeding procedure is to bleed the brake (wheel position) furthest from the master cylinder first, then bleed the other brake that shares the same hydraulic circuit (which may be the other rear brake on a rear-wheel drive car or truck, or the opposite front brake on a front-wheel drive car or minivan).

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