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1990 GMC C1500 Sierra 5.0L Brake pedal creeps almost to the floor.
Posted to GM Brakes on 3/14/2000

HAPPY ST. PATRICK'S DAY! This pedal goes the floor, as if Master Cylinder were bypassing. Pinching off brake hoses makes no difference. Plugging M.C. ports gives hard pedal. This has rear antilock accumulator looking 'thingy' with bleeder on top, can this ...

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Message Closed w/FIX

car Vehicle Data

1990 GMC C1500 Sierra

VIN 2GTEC14HXL
Engine5.0 L / 8 cyl / GAS
Trans4-speed Automatic
DeliveryFI
AffectedBrake Pedal Creeps Almost to the Floor.
ConditionsMushy, Nearly to the Floor.
Misc.Heavy Duty Brakes, ABS
Message Closed w/FIX

car Vehicle Data

1990 GMC C1500 Sierra

VIN 2GTEC14HXL
Engine5.0 L / 8 cyl / GAS
Trans4-speed Automatic
DeliveryFI
AffectedBrake Pedal Creeps Almost to the Floor.
ConditionsMushy, Nearly to the Floor.
Misc.Heavy Duty Brakes, ABS