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Hallo, My Rolls Royce Silver Shadow, 1973, shows this intermitant fault. When started, the warning lights " Partial Brake Failure" and "Master cylinder" stay on. The length of time varies from a few minutes to about 15 minutes. The lights then extinguise und stay out until the engine is switch off and then restarted after a pause of about an hour. Should the car be restarted within minutes, for example after refueling, there is no problem. I have noticed no difference in the braking system when the lights are on,nor is there any distinguisable hydraulic fluid loss. Any ideas? Thanks in advance Rod Parker PS. I have only had the car about 6 months and it is not used on a regular basis. History of services and other work done on the car are not available.

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Posted on Sep 09, 2010


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