Toyota Tacoma manuals

Toyota Corolla Repair Manual: Onvehicle inspection

1. Inspect brake booster

  1. Airtightness check.
  1.  Start the engine and stop it after 1 or 2 minutes. Depress the brake pedal several times slowly.

    Hint

    : if the pedal goes down farthest at the 1st time, but gradually rises after the 2nd or 3rd time, the booster is airtight.

  2.  Depress the brake pedal while the engine is running, and stop the engine with the pedal depressed.

    Hint

    : if there is no change in the pedal reserve distance after holding the pedal for 30 seconds, the booster is airtight.

  1. Operating check.
  1.  Depress the brake pedal several times with the ignition switch off and check that there is no change in the pedal reserve distance.
  2.  Depress the brake pedal and start the engine.

    Hint

    : if the pedal goes down slightly, operation is normal.

2. Inspect vacuum check valve

  1.  check vacuum check valve.
  1. Slide the clip and disconnect the vacuum hose.
  2. Remove the vacuum check valve.

  1. Check that there is ventilation from the booster to engine, and no ventilation from the engine to the booster.
  2.  If any fault is found, replace the vacuum check valve.
Brake booster assy
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Components
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Other materials:

Onvehicle inspection
1. Inspect drive belt Visually check the belt for excessive wear, frayed cords, etc. If any defect is found, replace the drive belt. Hint: cracks on the rib side of a belt are considered acceptable. If the missing chunks from the ribs are found on the belt, it should be replaced. 2 ...

Onvehicle inspection
1. Inspect pressure switch no.1. Magnetic clutch control: inspect pressure switch operation.  Set on the manifold gauge set.  Connect the positive (+) lead from the ohmmeter to terminal 4 and the negative () lead to terminal 1.  Check continuity between terminal ...

Identification information
Vehicle identification and serial numbers 1. Vehicle identification number The vehicle identification number is stamped on the vehicle identification number plate and certification label, as shown in the illustration. Vehicle identification number plate certification label 2. Engine ...

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