Sticking Brakes!

**sol-autos** · 6th February 2004

Hi, Does anyone know the answer to this?
We have a Citroen Partner van with the 1.9 td engine. Last week it decided not to release the brakes after they had been used. The only way to release them was to remove the air pipe from the servo. We have changed the servo unit, the one way valve, and eliminated the pump. The fault still exists after all this. Has anyone come across this fault? Please help ,if you can. John.:nowords:

**fireman2203** · 7th February 2004

Originally Posted by sol-autos

Hi, Does anyone know the answer to this?
We have a Citroen Partner van with the 1.9 td engine. Last week it decided not to release the brakes after they had been used. The only way to release them was to remove the air pipe from the servo. We have changed the servo unit, the one way valve, and eliminated the pump. The fault still exists after all this. Has anyone come across this fault? Please help ,if you can. John.:nowords:

Dos it make all 4 wheels stay locked on?
Possible problem with master cylinder which should only cause 2 on the wheels to lock as it has 2 independant circuits. Try bleeding the system to dislodge any dirt that may be in the system as well. Jack the car up and with servo pipe disconnected apply brakes slowly to see if each wheel binds then releases.

**pangr** · 7th February 2004

Dont know this will work but its a cheap quick option...

Try using a powerful jet wash to clean your brake calipers, they may be sticking.

Out of curiosity, if you drive along and brake hard then release the pedal, does it still carry on braking with the same force as if your foot was still on the pedal?