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Home >> Jaguar >> 2019 >> XJR575 >> Repair and Diagnosis >> Brakes >> Mechanical - Hydraulic >> Brake System - General Information -- XJ/X351 >> Brake System - General Information (G1269564) >> Diagnosis And Testing >> Brake System (G2871762) >> Pinpoint Tests >> Pinpoint Test N: Brakes Drag

Pinpoint Test N: Brakes Drag

  1. N1: ROAD TEST VEHICLE 
    1. Road test the vehicle and apply the brakes

      Are the brakes functioning correctly?

      Yes 

      No action required, vehicle is OK

      No 

      GO to  N2.

  2. N2: CHECK BRAKE CALIPERS 
    1. Check the front and rear calipers pistons and pins for binding, leaking or sticking

      Do the disc brake caliper pistons and pins bind, leak or stick?

      Yes 

      Inspect the brake calipers, install new components as required. Re-test the system for normal operation

      No 

      GO to  N3.

  3. N3: CHECK BRAKE BOOSTER 
    1. Check the brake booster connecting rod alignment and travel

      Is the connecting rod OK?

      Yes 

      Vehicle is OK

      No 

      Install a new brake booster as required. Re-test the system for normal operation

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