Operation CHARM: Car repair manuals for everyone.
Hosted by mcallihan.com

Exhaust Flap Vacuum Diaphragm, Checking






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.