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1989 Chevrolet R2500 Suburban Scottsdale 7.4L Master or Hydraulics?
Posted to GM Brakes on 1/21/2002 16 Replies

Came in with brake master cylinder cap off and lost some brake fluid. Pedal was low. We replaced the master cyinder and the pedal came up and all seemed fine. That is until part way through the test drive the the pedal sank again.

So we tried another master ...

16 Replies Received (View Replies)

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car Vehicle Data

1989 Chevrolet R2500 Suburban Scottsdale

VIN 1GNGR26N3K
Engine7.4 L / 8 cyl / GAS
Trans3-speed Automatic
DeliveryFI
AffectedMaster or Hydraulics?
ConditionsLow Pedal, Spongy
Misc.3/4 Ton With 1 Ton Rear Axle Not 4WD
Message Closed w/FIX

car Vehicle Data

1989 Chevrolet R2500 Suburban Scottsdale

VIN 1GNGR26N3K
Engine7.4 L / 8 cyl / GAS
Trans3-speed Automatic
DeliveryFI
AffectedMaster or Hydraulics?
ConditionsLow Pedal, Spongy
Misc.3/4 Ton With 1 Ton Rear Axle Not 4WD