Exhaust Pressure Regulator Vacuum Solenoid: Testing and Inspection

Exhaust Flap Vacuum Diaphragm, Checking

Special tools, testers and auxiliary items required

• Hand vacuum pump (VAS 6213)

Test Sequence

- Disconnect hose on vacuum diaphragm for exhaust flap at rear muffler.

- Connect the hand vacuum pump to the vacuum diaphragm.





- Generate vacuum using hand vacuum pump.





• Linkage must move toward front.

- Vent the hand vacuum pump.

• Linkage must move toward rear.

If linkage does not move:

- Check the linkage for ease of movement and check the vacuum diaphragm for leaks.