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What is the problem of 2.3L motor when the brakes pedal goes to the floor while motor is running but the brakes pedal can be pumped up when the motor is not running?
GreenShay
Check master cylinder for fluid level
Check around all wheels for a fluid leak or bad wheel cylinder
The reason you can pump brake up without engine running is that you are emptying the vacuum reservoir and no longer have power (vacuum) assist
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∙ 12y ago
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Why do the brakes go to the floor when the truck is running on a dodge 2500?
If this problem occurs, then it means that there is a problem with your car. You can get the brake line fixed by visiting a technician.
Why would the brakes go to floor for no reason in Saturn?
They wouldn't. You have a problem, and it's hazardous to your health.
You replaced rear brake shoes and drums your brakes are now fading and have to be pumped to stop There are no leaks and the adjustment is up where it should be?
Try bleeding your brakes. If there is air in the system it can give a spongy feeling to your brake pedal and require you to pump your brakes and/or put your brake pedal to the floor.
How to tell if you need your brakes replaced?
The best way to tell when you need brakes is by squeaking, when the brakes are rubbing against the metal, when your brake pedal goes all the way to the floor and when you are running out of break fluid.
1978 corvette new brake system you have good pedal after bleeding system but pedal fades almost to floor when the car is running you tried bleeding the brakes while the engine was running and gravity?
I would suspect the Master Cylinder if defective. I had the same problem with my 1978. I replaced the combination valve and it solved the problem after bleeding.
Brake Pedal goes to floor after changing brakes on 2003 Saturn L200 and bleeding brakes throughly. What could be problem Car is mint too new to be master cylinder 30K miles.?
Not really an answer, but another question... did you bleed the brakes after you changed them? I remember that is a critical step, NOT to be missed when working on the brakes. Hope this helps.
Will your brakes go to the floor if wheel bearings are bad?
No
Brakes going to the floor?
you either need to bleed your brakes, add fluid or get a master cylinder darrellshandyman@live.com
Why would a 1996 Chev truck brakes go most of the way to the floor after new master cylinder bleed the brakes. Worked on the brakes themselves but still brakes go almost to the floor.?
You either got the wrong master cylinder or you haven't actually bled all the air out of the system.
Why would Brake pedal on ford zx2 stay up with car off but go to floor when car is turned on?
Vacuum booster is working--When vehicle off there is no vacuum assist (for power brakes) When vehicle is on vacuum is present Brake pedal going to floor is another problem--no fluid in master cylinder? Leak in system? Brakes not adjusted properly?
1993 civic brakes pedal almost goes to the floor than brakes perfectly?
Caliper slides frozen? Rear drum brakes? May need to be adjusted
Why do the brakes go to the floor before beginning to respond?
you either need a new brake master cylinder or your brakes need to be bled
