Brakes Problem

[Turtle_au]

Maybe an ABS thing? Not sure on the intricacies of the unit but it does control pressure to wheels, maybe bypasses excess pressure?

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[garett]

Maybe an ABS thing? Not sure on the intricacies of the unit but it does control pressure to wheels, maybe bypasses excess pressure?

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yeah i agree it might even be a bit of air in the abs unit. or one of the valves/solenoids not closing properly

check the bleeding procedure for the abs (some cars are picky about this)

[dom14]

yes dom they are the same just different sizes. ( not saying the are interchangeable just they work the same way)
but i would be surprised if a leaky clutch booster would affect the brake much. unless its a really big leak. never seen one i real life so speculating here.

Cool, thanx mate. Mine's never had a clutch booster(afaics), so it's a totally new territory for me.

[billyj]

a leaky booster makes the pedal rock hard not soft, a soft sinking pedal is air or a leak no ifs buts or maybes

[BillsGU]

a leaky booster makes the pedal rock hard not soft, a soft sinking pedal is air or a leak no ifs buts or maybes

I agree. With mine the air was in the LPV and could not be bled out due to the piston not working correctly. The LPV is the highest point in the rear brake system and all air and moisture seems to accumulate there, especially if it is never bled - which seems to be the case in most Patrols.