Picasso brake not releasing on one rear wheel intermittently

This is the Forum for all your Citroen Technical Questions, Problems or Advice.

Moderator: RichardW

Post Reply
rizla
Posts: 5
Joined: 29 Dec 2011, 23:29
Location:
My Cars:

Picasso brake not releasing on one rear wheel intermittently

Post by rizla »

Hi,

2002 Picasso. Randomly, the left rear wheel's brake doesn't release after braking.

It has drum brakes on the rear. To get it to release, it is necessary to pull over and open the bleed nipple briefly to relieve the pressure.

As it has ABS, there is no load compensator valve for the rear brakes.

Replaced (to no avail):

- ABS unit.
- Drum brake assembly/hub

Lexia shows no ABS faults, just the usual no communication with air-con fault. No other faults in any ECU on the car.

I can't see what else could be causing it since it has a new hub and new ABS pump/actuator unit?

Has anyone experienced this, or has an idea what might be causing it?
citronut
Posts: 10937
Joined: 29 Apr 2005, 00:46
Location: United Kingdom east sussex
My Cars:
x 92

Re: Picasso brake not releasing on one rear wheel intermitte

Post by citronut »

my first thought would be flexi hose has collapsed internally as it happens after braking and not after using the hand brake,

and as its only one wheel
Regards, malcolm.

current ride a BX 1.7 TZD estate
1986 MK1 BX 1.9na D Auto(in Mothman Andy's stable )
layed up roppy 1.9TD XANT estate, now gone to meet her maker
purple and lilac metalic 2CV(VIOLET)registered to her in doors
1972 DS special been layed up aprox 31 years
Post Reply