Brake System/Pedal Help
Posted: Fri May 08, 2020 8:45 pm
Hi Guys,
So, after loads of work on the rocco this lockdown I drove it out the garage today on our back road as a test and came across a problem I had forgotten about, the brakes.
Quick overview of the symptoms:
- If the engine is off and I pump the brake pedal it firms up ( still slightly soft but doesn't seem to drop at all while pushing the pedal)
- with the engine on the pedal drops to the floor as soon as any pressure is applied, the brakes work but require a lot of pressure to be applied to the pedal to have any affect. (the pedal does come back up when not on it)
- all pads have been replaced front and back (back are drums)
- handbrake works fine so I know there is no issue in the drums themselves.
- System has been bled twice and the rear lines replaced.
I firstly presumed master cylinder but thinking about it, wouldn't the pedal drop when its pumped with the engine off if this was the case?
My only other theory, which I really don't want it to be, is the servo?
What are peoples thoughts?
Thanks in advanced :)
So, after loads of work on the rocco this lockdown I drove it out the garage today on our back road as a test and came across a problem I had forgotten about, the brakes.
Quick overview of the symptoms:
- If the engine is off and I pump the brake pedal it firms up ( still slightly soft but doesn't seem to drop at all while pushing the pedal)
- with the engine on the pedal drops to the floor as soon as any pressure is applied, the brakes work but require a lot of pressure to be applied to the pedal to have any affect. (the pedal does come back up when not on it)
- all pads have been replaced front and back (back are drums)
- handbrake works fine so I know there is no issue in the drums themselves.
- System has been bled twice and the rear lines replaced.
I firstly presumed master cylinder but thinking about it, wouldn't the pedal drop when its pumped with the engine off if this was the case?
My only other theory, which I really don't want it to be, is the servo?
What are peoples thoughts?
Thanks in advanced :)