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Bleeding Brakes

Posted: Sat Dec 04, 2021 9:26 am
by Boydie
Okay can I do this on my PX2 Wildtrak ?

On my previous Land Rover Discovery - ( It did not have anti-lock brakes ) - I used an old 4 litre LPG bottle I have for this purpose evacuated to a reasonable vacuum, around 15" of Hg - ( to achieve this I use an old fridge compressor I have as a vacuum pump; this is a common practice in the refrigeration industry to evacuate refrigerant pipe systems ) - This LPG bottle has a tap/cock on it and is then connected with a plastic hose to a plastic 1 litre container that I have for bleeding brakes, it has two connections on the screw-on cap, the second connection is connected by a hose to a brake nipple, this hose goes all the way to the bottom of the bottle.

All I had to do on the Disco is screw out the brake nipple a couple of turns, open the cock and the LPG vacuum bottle would evacuate the plastic bottle and draw brake fluid out of the nipple and into the plastic bottle, once the bottle had about 250 ml in it I would close the cock and top up the main brake reservoir and carry on with all four wheels until I had totally replaced all the brake fluid in the system.

I tested my Wildtrak brake fluid a year ago and it had a moisture content of under 1.5%, its now at 3% so it really needs to be changed.

My question is with the Ford anti-lock brake system can I still use this same method / system starting from the furthest brake ( passenger rear ) and working to the drivers side front- the nearest wheel ?
Do I need to have the engine running or just have the ignition on to activate the anti-lock brake system ?
Is there another way of bleeding and replacing the entire brake fluid ?

Re: Bleeding Brakes

Posted: Sun Dec 05, 2021 5:45 pm
by saeb
Boydie wrote: Sat Dec 04, 2021 9:26 am My question is with the Ford anti-lock brake system can I still use this same method / system starting from the furthest brake ( passenger rear ) and working to the drivers side front- the nearest wheel ?
Do I need to have the engine running or just have the ignition on to activate the anti-lock brake system ?
Is there another way of bleeding and replacing the entire brake fluid ?
Bleed like you normally would or use Forscan and follow procedure instructions when run.

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2021-12-05.png (77.95 KiB) Viewed 183 times

Re: Bleeding Brakes

Posted: Mon Dec 06, 2021 8:45 am
by Boydie
saeb wrote: Sun Dec 05, 2021 5:45 pm
Boydie wrote: Sat Dec 04, 2021 9:26 am My question is with the Ford anti-lock brake system can I still use this same method / system starting from the furthest brake ( passenger rear ) and working to the drivers side front- the nearest wheel ?
Do I need to have the engine running or just have the ignition on to activate the anti-lock brake system ?
Is there another way of bleeding and replacing the entire brake fluid ?
Bleed like you normally would or use Forscan and follow procedure instructions when run.


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Thank you for that confirmation Stewart.
I'll be doing the brake fluid change as soon as this bloody rain stops. It would seem that there is no reason not to do it the same way as I always have which is great.

Re: Bleeding Brakes

Posted: Wed Mar 02, 2022 1:49 pm
by Phillwehbe89
Hi I just changed mt pads and rotors on a px3 and my pedal is very soft now. I seen a video on youtube to do a abs service bleed without actually bleeding the brakes followed by a abs module reset. Does this sound right?

Re: Bleeding Brakes

Posted: Wed Mar 02, 2022 2:00 pm
by Phillwehbe89

Re: Bleeding Brakes

Posted: Sun Mar 06, 2022 2:30 pm
by GE350
I recently followed Forscan procedure on my PX2, to bleed brakes and ABS worked perfectly. It is very straight forward even which wheel to do etc.

I did bleed the clutch first as it uses same reservoir as wanted to change the system being 3 years old

Re: Bleeding Brakes

Posted: Mon Mar 07, 2022 10:13 am
by Boydie
I grabbed the only day it didn't rain and did a complete brake fluid replacement and system flush and in doing it used an entire sealed 4 litre container of DOT 4 Brake fluid and the moisture content is back to a very acceptable 0.4% -- thanks to everyone for their help and advice.

Re: Bleeding Brakes

Posted: Mon Mar 07, 2022 9:41 pm
by NathanSA
What does the Forscan procedure entail?
Does it pump brake fluid out or does one still need a way to get the fluid out?
How much brake fluid does the Forscan process require?