no brake boost

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16-11-2018, 02:55 AM

Barons knight

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no brake boost

hi All my 1989 cosworth has no power brake boost the pedal is rock hard and the pump is running but no brake boost any help would be very much appreciated

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16-11-2018, 05:28 AM

grcossie

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Pressure switch at abs unit is a common fail. It can also be the + wire from battery to abs pump.

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16-11-2018, 07:01 PM

Barons knight

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Cosworth brake problem

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Originally Posted by Barons knight

hi All my 1989 cosworth has no power brake boost the pedal is rock hard and the pump is running but no brake boost any help would be very much appreciated

Hi grcossie
Many thanks for your help i will give your suggestions a go

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