What should brake pedal travel be after front pad change?
If the master cylinder seals became inverted you will have no brake pedal at all. Try bleeding them. And check how much free play you have on the brake pedal. You should have about ¼” or so. This can be adjusted quite easily at the master cylinder/brake pedal pushrod. I had this same problem on an Astra after a front pad change.
How does a hard brake pedal work in a car?
It plumbs into the brake system using a vacuum hose going from the booster directly to the pump. This completely removes the engine from the equation and provides the proper vacuum level to the system. Before jumping directly to a vacuum pump though, there are a couple of quick and simple things that should be investigated.
Why does my Astra brake pedal travel so long?
The front brake pads on my Astra have just been replaced and although the car stops as normal, the pedal travel seems longer / softer than before. The Haynes manual warns that master cylinder problems can be created by pushing the piston back.
What to do if your car has excessive pedal travel?
If you don’t typically engage your parking brake, the parking brake can be key in figuring out if your car is suffering from excessive brake pedal travel. If the parking brake doesn’t properly engage, that generally means a low pedal. 3. Bleed the Brakes.
What’s the correct order for brake pedal travel?
In traditional systems, you begin with the longest line in the circuit first, and go from the right rear, left rear, right front, and left the front. In diagonally split systems, the order is right rear, left front, left rear, and right front. Flush out the bleeder valves, and finally, remove the air from your master cylinder.
Why do I have excessive brake pedal travel?
Excessive brake pedal travel happens when you feel your pedal sinking rapidly while braking, or sitting lower than usual when activating your vehicle’s brakes. This can happen due to wobbly discs knocking pistons back or air in the braking system. Performing DIY brake repair to fix excessive brake pedal travel can be a tedious task.
What’s the best way to depress the brake pedal?
Use a jelly jar half full of brake fluid and a short hose to depress your brake pedal. While depressing the pedal, rotate the star wheel to lose up the clearance. Then, go back one click when the wheel scrapes. It’s best to have a partner on hand when bleeding your brakes.
What to do when you Bleed your brake pedal?
Use a jelly jar half full of brake fluid and a short hose to depress your brake pedal. While depressing the pedal, rotate the star wheel to lose up the clearance. Then, go back one click when the wheel scrapes. It’s best to have a partner on hand when bleeding your brakes. 4. Bleed the Master Cylinders.