Brake pedal spring?
Thread Starter
Burning Brakes
Joined: Jan 2005
Posts: 1,239
Likes: 4
From: Shelby Township Michigan
Brake pedal spring?
Is there a spring that keeps the brake pedal from lifting up? Mine seems to easily float up under hard acceleration causing a check ABS message. Thanks.
Drifting
Joined: Feb 2012
Posts: 1,796
Likes: 37
From: skiatook oklahoma
went through the parts list and nothing labeled as a spring. might be in this blow-up somewhere but i dont see it. so , maybe this helps for someone to point out which part(s) here need adjusting.
Race Director
Joined: Dec 2013
Posts: 12,502
Likes: 3,631
Spring is in the brake booster,
But what do you mean that it floats up?
When the ABS kicks in to just stop the tires from locking up when braking, you should feel the brake pedal start to pulse/chatter rapidly instead.
If the active handling kicks in, then the ABS pump kicks in to send more brake fluid pressure to one or more of the brake calipers to slow the needed tires down to straighten the car out instead (will slightly push the brake pedal back up).
I would start with pulling codes, and if you have not power flushed the brake lines in a few years with new brake fluid, now would be a good time to do so. Also, to get all the old fluid out of the ABS pump, it take a Tech II to cycle the pump as you are power flushing the brakes. Short of this, power flush with new fluid to get all the old fluid out you can can, find an area that you can get the active handling to kick on during hard braking to cycle the abs pump to push the old fluid out of the pump and suck in new fluid, then powder bleed again.
But what do you mean that it floats up?
When the ABS kicks in to just stop the tires from locking up when braking, you should feel the brake pedal start to pulse/chatter rapidly instead.
If the active handling kicks in, then the ABS pump kicks in to send more brake fluid pressure to one or more of the brake calipers to slow the needed tires down to straighten the car out instead (will slightly push the brake pedal back up).
I would start with pulling codes, and if you have not power flushed the brake lines in a few years with new brake fluid, now would be a good time to do so. Also, to get all the old fluid out of the ABS pump, it take a Tech II to cycle the pump as you are power flushing the brakes. Short of this, power flush with new fluid to get all the old fluid out you can can, find an area that you can get the active handling to kick on during hard braking to cycle the abs pump to push the old fluid out of the pump and suck in new fluid, then powder bleed again.
Last edited by Dano523; Jul 12, 2015 at 02:22 AM.
Thread Starter
Burning Brakes
Joined: Jan 2005
Posts: 1,239
Likes: 4
From: Shelby Township Michigan
Spring is in the brake booster,
But what do you mean that it floats up?
When the ABS kicks in to just stop the tires from locking up when braking, you should feel the brake pedal start to pulse/chatter rapidly instead.
If the active handling kicks in, then the ABS pump kicks in to send more brake fluid pressure to one or more of the brake calipers to slow the needed tires down to straighten the car out instead (will slightly push the brake pedal back up).
I would start with pulling codes, and if you have not power flushed the brake lines in a few years with new brake fluid, now would be a good time to do so. Also, to get all the old fluid out of the ABS pump, it take a Tech II to cycle the pump as you are power flushing the brakes. Short of this, power flush with new fluid to get all the old fluid out you can can, find an area that you can get the active handling to kick on during hard braking to cycle the abs pump to push the old fluid out of the pump and suck in new fluid, then powder bleed again.
But what do you mean that it floats up?
When the ABS kicks in to just stop the tires from locking up when braking, you should feel the brake pedal start to pulse/chatter rapidly instead.
If the active handling kicks in, then the ABS pump kicks in to send more brake fluid pressure to one or more of the brake calipers to slow the needed tires down to straighten the car out instead (will slightly push the brake pedal back up).
I would start with pulling codes, and if you have not power flushed the brake lines in a few years with new brake fluid, now would be a good time to do so. Also, to get all the old fluid out of the ABS pump, it take a Tech II to cycle the pump as you are power flushing the brakes. Short of this, power flush with new fluid to get all the old fluid out you can can, find an area that you can get the active handling to kick on during hard braking to cycle the abs pump to push the old fluid out of the pump and suck in new fluid, then powder bleed again.
