2 haynes manuals say 2 different things, and eveyone you speak to has their own opinion.

whats the CORRECT way of bleeding the brakes on a sierra?

 

put the ignition on to pos 2, open the desired nipple (furthest away first and gently press the pedal, the fluid will shoot out like it would if you had jordan asking you into the sack

 

so needs ignition on then and pump pressurised?

 

yes

 

thanks kev, no wonder our method wasnt working so well

 

For the backs only that is

Bleed the fronts conventionally!

Neil.

BTW for the rears, only press the pedal halfway through its travel

 

i beleive neil is right now i come to think about it

i,m getting a bit rusty in my old age

 

First time for everything I guess!

Neil.

 

i already told lennie this about a month ago, also makesure the nipple is at the highest point to remove all the air, usually involves undoing one caliper bolt and rotating it untill its at the top totally

 

rubbish

 

neil, what's "conventional" tho... theres a sodding ABS pump in the circuit

are you supposed to relieve the pressure i the pump 1st (disconnect batt, pump up pedal till rock solid)?

 

Nope - don't pump the pedal till it goes hard Jim.

OK, All 4 wheels off...
Start with the NS/R. Ignition on to II, open the nipple, glamourous assistant presses the pedal halfway. Hold untill you are done.
Repeat for OS/R
Ignition off
Do NS/F as per usual - open the nipple, glamorous assistant puts pedal to floor.
Close nipple.
Glamourous assistant releases pedal.
Repeat till bored
Repeat for OS/F

The ABS Pump isnt really 'in' the circuit - it just pressurises the fluid supply to the master cylinder if memory serves.

The solenoid block should sort itself out - just don't let the reservoir run dry

Neil.