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Hard brake pedal. 700 84

posted by  someone claiming to be Darrell on  Sun Nov 19 10:39 CST 2000 [RELATED]

Brakes are normal after a cold start. 5 to 10 minutes later any pumping will make them harder, intentional pumping makes them worse. Is this the master cylinder or do Volvos have something else to look for?







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    Re: Hard brake pedal. 700 84

    posted by  someone claiming to be Rene Svastal on  Mon Nov 20 07:55 CST 2000 [RELATED]

    I would check the vacuum line to the booster. Sounds to me like there isn't enough getting to the brakes. Similar to pumping with the engine off?

    Rene







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      Re: Hard brake pedal. 700 84

      posted by  someone claiming to be Brian g. on  Mon Nov 20 09:30 CST 2000 [RELATED]

      If I were you I would go ahead and replace the vacume hose to the boosterand see if it makes any diffrence. If not the diaphram in the booster may be leaking, if that is the case it is time for a new booster.







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        Re: Hard brake pedal. 700 84

        posted by  someone claiming to be Ed O'Briant on  Tue Nov 21 02:56 CST 2000 [RELATED]

        Or it could just be the check valve seated in the booster. Quite a common problem as these cars age.

        Ed O'Briant







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          Re: Hard brake pedal. 700 84

          posted by  someone claiming to be Darrell on  Wed Nov 22 09:31 CST 2000 [RELATED]

          Many thanks to all of you. I'll check it out and post the results.






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