VACUUM PUMP(for 3ZR-FAE) ON-VEHICLE INSPECTION

PROCEDURE

1. OPERATION CHECK

   
   

   1. Slide the clip and disconnect the union to connector tube hose from the vacuum pump assembly.

   2. 

      *a	Vacuum Gauge

      Connect the hose of a vacuum gauge to the vacuum pump assembly.

   3. Start the engine and warm it up for more than 2 minutes.

   4. With the engine idling, measure the negative pressure of the vacuum pump assembly.

      Standard Pressure
      Higher than 86.7 kPa (650 mmHg, 25.6 in.Hg)

      If the pressure is less than the standard, disassemble and inspect the vacuum pump. If necessary, replace the vacuum pump assembly.

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      Tech Tips

      Always perform this operation check procedure after replacing or servicing the vacuum pump assembly.

   5. Remove the vacuum gauge from the vacuum pump assembly.

   6. Connect the union to connector tube hose to the vacuum pump assembly, and slide the clip to secure it.