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2004 GMC Sierra 1500 SLE 5.3L Vacuum assist
Posted to GM Brakes on 4/23/2014 8 Replies

Customer complaint is an intermittent hard brake pedal when applied. Vacuum brake booster has the "Supplemental Brake Assist" vacuum pump at booster. No warning messages such as "Reduced Brake Power," "Service Brake Booster" or "ABS" are being displayed. No co...

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  Related Documents & Media  2004 GMC Sierra 1500 SLE

 
Message Closed w/Summary

car Vehicle Data

2004 GMC Sierra 1500 SLE

VIN 2GTEK19T64
Engine5.3 L / 8 cyl / GAS
Trans4-speed Automatic (Electronic)
DeliveryFuel Injection
AffectedVacuum Assist
ConditionsIntermittent Hard Pedal
Message Closed w/Summary

car Vehicle Data

2004 GMC Sierra 1500 SLE

VIN 2GTEK19T64
Engine5.3 L / 8 cyl / GAS
Trans4-speed Automatic (Electronic)
DeliveryFuel Injection
AffectedVacuum Assist
ConditionsIntermittent Hard Pedal