More Information for ACDELCO 1780700
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ACDELCO 1780700 Specifications
Brake Pedal Rod Extension IncludedYes
Master Cylinder IncludedNo
Booster TypeHydraulic
Mounting Bracket IncludedYes
Mounting Hardware IncludedYes
New Or RemanufacturedNew
New Or RemanufacturedNew
GM Original Equipment

Symptoms of a Failing Power Brake Booster:

  • Stiff brake pedal that is extremely hard to push
  • Longer stopping distance
  • Engine stalls when brakes are applied

Prior to replacing your Power Brake Booster:

  • Ensure the Vaccum Hose is properly connected and not loose
  • Check the Vaccum Hose for a blockage or leak
  • Inspect the Check Valve for cracks, looseness or damage

Testing your Power Brake Booster:

  • With the engine off, pump the brakes 5-6 times
  • Turn the engine on while pushing down lightly on the brake pedal
  • If your brake booster is working, the pedal will sink down about
  • If your brake booster is not working, nothing will happen or the brake pedal will push back against your foot

Warranty Information:
24 Month / Unlimited Mile Warranty
Warranty Details