Revision: 2006 November 2007 350Z
VACUUM LINES PFP:41920
Removal and Installation NFS0000N
? Because vacuum hose contains a check valve, it must be
installed in the correct orientation. Refer to the stamp or
label to confirm correct installation. The brake booster will
not operate normally if the hose is installed in the wrong
? Insert the vacuum hose for at least 24 mm (0.94 in).
? Do not use lubricating oil during assembly.
Check for improper assembly, damage and deteriorate.
CHECK VALVE INSPECTION
Use a hand-held vacuum pump to check.
1. Clamp 2. Vacuum hose 3. Vacuum tube
4. Grommet 5. Vacuum hose (built in check valve)
A. To intake manifold B. To brake booster C. Stamp indicating engine direction
When connected to booster side (1):
Vacuum decrease should be within 1.3 kPa (10
mmHg, 0.39 inHg) for 15 seconds under a vacuum
of ?66.7 kPa (?500 mmHg, ?19.69 inHg)
When connected to engine side (2):
No vacuum will be applied