Irony
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| posted on 13/7/14 at 09:02 AM |
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Cmax/Focus Brake issue
My Diesel Cmax has a brake issue. Bit scary as it's the missus's car and we have a toddler. You start the car from cold and the brake
pedel is stiff as you like. Almost as if the power brakes aren't working. Very little braking effort. Literally 2min later the brakes are
working perfect and keep on being perfect. When starting from hot no problems. Then leave it overnight, same problem.
Any ideas?
[Edited on 13/7/14 by Irony]
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rusty nuts
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| posted on 13/7/14 at 09:32 AM |
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Start by checking for a vacuum at the servo when cold
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britishtrident
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| posted on 13/7/14 at 10:06 AM |
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As above sounds like a collapsed servo hose or faulty or leaking vacuum check valve, if not could be abs pump fault.
[I] “ What use our work, Bennet, if we cannot care for those we love? .”
― From BBC TV/Amazon's Ripper Street.
[/I]
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Irony
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| posted on 13/7/14 at 11:25 AM |
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quote:
Originally posted by britishtrident
As above sounds like a collapsed servo hose or faulty or leaking vacuum check valve, if not could be abs pump fault.
I'll have to google how to do those things, no experience with these systems.
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avagolen
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| posted on 13/7/14 at 03:28 PM |
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As it is a diesel, does it not have a vacuum pump somewhere?
No experience, but I have heard some are part of the Alternator.
Maybe the more experienced Ford guru's could comment. 
The Answer for everything, but never the last word....
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luke2152
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| posted on 13/7/14 at 10:20 PM |
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quote:
Originally posted by avagolen
As it is a diesel, does it not have a vacuum pump somewhere?
No experience, but I have heard some are part of the Alternator.
Maybe the more experienced Ford guru's could comment.
Often driven off the cam too but no experience either with these engines
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mcerd1
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| posted on 15/7/14 at 12:41 PM |
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found this recall - even if yours isn't covered by the recall it could be a similar issue..
http://www.dft.gov.uk/vosa/apps/recalls/searches/expand.asp?uniqueID=24E73DECF50DE9C6802575AF002C8B13&freeText=Blank&tx=
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