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I Have a 1979 Chevy C60 and after you pump the brakes they lose pressure I changed the master cylinder What is the next step to get them to work?
Wiki User
∙ 14y ago
There's air in there somewhere. You got to get it out. I like those one-man bleeder pumps that pull through the bleeder screw.
Wiki User
∙ 14y ago
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What could be wrong with a 1998 jeep wrangler it has no brake pressure master cylinder has been changed and vacuum reservoir has been changed?
The brakes need to be bled, or is there no vacuum pressure? in that case you need to check all vacuum lines, including the ones for the cabin and other accessories, not just the brakes.
When a master cylinder is how can you tell?
A master cylinder should be replaced when it can no longer provide the pressure needed for the brakes to operate. You can tell it is failing when the pedal becomes soft.
Why would you have no brake pressure after replacing brakes rotors calipers and after bleeding the brakes on a 1991 cutlass supreme?
Bleed the master cylinder.& then rebleed the system.
Why would the brakes lock up on a 1974 Chevy after changing the master cylinder?
One reason is that air could have gotten into the braking system, expands when it warms up, and forces pressure on the brakes. It could also possibly be caused by using the wrong type of brake fluid, or by using automatic transmission fluid. The brake fluid added after the master cylinder was changed could have been standing open for long enough to absorb water from the air, which expands or even turns to steam, thus exerting a great pressure on all the brakes. The master cylinder might be stuck in the full braking position.
Where is the abs?
The ECU for the ABS brakes is attached to the Master cylinder for the brakes.
Why are your brakes not reacting?
master cylinder is sticking
How are hydraulics used in car brakes?
As the brake pedal is pressed, an attached rod on the master cylinder applying pressure to the brake fluid in psi. This pressure is applied to the calipers/wheel cylinders clamping the brakes. In front brakes(disc/caliper) setups the pressure is multiplied. An example: Applying 100lbs of force to the master cylinder(not the pedal, since the pedal has a mechanical advantage of 5-7:1 meaning 20lbs or less on the pedal is 100 on the master cylinder). Because the master cylinder's piston has an area of 1 square inch(generalization) it would equal 100psi. 100psi of pressure on the caliper's piston which can have an area of around(say) 3inches, would exert 300psi of pressure on the pads.n disc drakes
What is the purpose of the cylinder?
The slave cylinder function operates from hydraulic pressure received from the master cylinder when applied. In automotive hydraulics the slave cylinder can operate such functions as the brakes, clutch or any hydraulic operation.
On a 93 ford tempo master brake cylinder are the front brakes controlled by the lines on the bottem of the master brake cylinder or the sides?
. If you have the 4-port master cylinder, the bottom ports go to the rear brakes & the upper side ports go to the front brakes.
Where is the ABS ECU?
The ECU for the ABS brakes is attached to the Master cylinder for the brakes.
What is the purpose of slave cylinder?
The slave cylinder function operates from hydraulic pressure received from the master cylinder when applied. In automotive hydraulics the slave cylinder can operate such functions as the brakes, clutch or any hydraulic operation.
What all does a master cylinder control on a car?
just the slave cylinder, for your brakes.
