On-Vehicle Inspection

NOTE: Maintenance of the vacuum pump ASSY is scheduled to be done in every 200, 00 km (125, 00 mile) of drive. Disassemble and check the vacuum pump ASSY in every 200, 00 km (125, 00 mile) of drive. If necessary, replace the parts. Check the following items.

Function inspection of vacuum pump ASSY
Component check

Function inspection of vacuum pump ASSY

Slide the clip and disconnect the union to connector tube hose from the vacuum pump ASSY.
Connect the vacuum gauge hose to the vacuum pump ASSY.
Use the vacuum gauge in the portable brake tester.
Plug the hose on the other side of the vacuum gauge with the hose plug No. 2.

Start the engine and warm up for 2 minutes or more.

Courtesy of SUBARU OF AMERICA, INC.

Check the vacuum pressure of the vacuum pump ASSY when the engine is running at idle speed.

NOTE: Read the value after 25 seconds have passed from starting the measurement.

Courtesy of SUBARU OF AMERICA, INC.

Limit: 93 kPa {698 mmHg, 13.5 psi}

If the value is below the limit, replace the vacuum pump ASSY.
(Refer to REMOVAL )
NOTE:
- Maintenance of the vacuum pump ASSY is scheduled to be done in every 200, 000 km (125, 000 mile) of drive. Check the vacuum pump ASSY in every 200, 000 km (125, 000 mile) of drive. If necessary, replace the parts. (Refer to REMOVAL )
- After replacing the vacuum pump ASSY, perform function inspection of the vacuum pump ASSY.
Remove the vacuum gauge.
Connect the union to connector tube hose to the vacuum pump ASSY with a clip.