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1955 Cadillac DeVille 5.4L Vacuum Booster
Posted to GM Brakes on 11/28/2010 28 Replies

When braking somewhat hard the brake pedal becomes hard due to loss of vacuum. The power assist seems fine until a hard stop is needed. The engine runs fine and accelerates good and there in no rough idle or noticeable change in the way the engine run. There i...

28 Replies Received (View Replies)

 
Message Closed w/Summary

car Vehicle Data

1955 Cadillac DeVille

VIN [No VIN Available]
Engine5.4 L / 8 cyl / GAS
DeliveryCarburetion
AffectedVacuum Booster
ConditionsLoss of Assist
Message Closed w/Summary

car Vehicle Data

1955 Cadillac DeVille

VIN [No VIN Available]
Engine5.4 L / 8 cyl / GAS
DeliveryCarburetion
AffectedVacuum Booster
ConditionsLoss of Assist