disco brake issus

1

110cswdave

Member

Posts

13

Location

redcar

• Aug 28, 2022

• #1

HI ALL
HELP trying to work out what is wrong with my brakes, no further forward at minute
disco 1 200tdi none abs.
here goes
brake pedal goes solid when driving no brakes
have replaced brake vacumn punp unit
brake servo . taken master cylinder off cleaned flushed out refitted
servo oneway valve
checked all calipers are working freely have replaced rear flexi , rear brake lines

what am i missing
any throughts ideas would be greatfully recieved
many thanks
dave

 

L

lynall

Well-Known Member

Full Member

Posts

25,754

Location

Kent

• Aug 28, 2022

• #2

Is the vac pump making a vacuum?

 

1

110cswdave

Member

Posts

13

Location

redcar

• Aug 28, 2022

• #3

i think so did replace it with a second hand one,
is there a way of checking to see itf it works

 

1

110cswdave

Member

Posts

13

Location

redcar

• Aug 28, 2022

• #4

yes vac pump is working

 

frostythor

Well-Known Member

Posts

608

Location

NEW FOREST

• Aug 28, 2022

• #5

A quick chech to see if your servo is working is with the engine off pump the brakes untill you have a solid pedal, keep pushing the pedal, then start the engine, the pedal should go down further this shows the servo if working

 

Last edited: Aug 29, 2022