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Automotive Technology: A Systems A...

6th Edition
Jack Erjavec + 1 other
ISBN: 9781133612315

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BuyFindarrow_forward

Automotive Technology: A Systems A...

6th Edition
Jack Erjavec + 1 other
ISBN: 9781133612315
Textbook Problem

A vehicle’s power brakes are grabbing: Technician A says that the most likely cause is the power brake booster. Technician B says that a likely cause is greasy linings or scored drums. Who is correct?

  1. Technician A only

  • Technician B only
  • Both A and B
  • Neither A nor B
  • To determine

    The technician with correct approach in diagnosing the cause of grabbing brakes.

    Explanation

    Given information:

    Technician A says that the most likely cause is the power brake booster.

    Technician B says that a likely cause is a greasy linings or scored drums.

    Vacuum assisted:

    This type of system uses engine vacuum or vacuum generated by some external parts to apply the brakes. These are mainly used in cars. In vacuum assisted power braking, the system generated the energy by opposing the engine vacuum to atmospheric pressure. The braking function is assisted by piston and cylinder, a diaphragm and bellow pins. This system uses the combination of both mechanical and hydraulic assisted systems...

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