G37x Coupe AWD V6-3.7L (VQ37VHR) (2009)
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When installing vacuum hose, insert it until its tip reaches the back-end of length (A) or further as shown in the figure.
Standard
A : 24 mm (0.95 in) or more
- Face the marking side up when assembling.
CAUTION:
Never use lubricating oil during assembly.
Inspection
VACUUM LINES
Inspection
INSPECTION AFTER REMOVAL
Appearance
Check for correct assembly, damage and deterioration.
Check Valve Airtightness
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Use a handy vacuum pump (A) to check.
When connected to the booster side (B):
Vacuum should decrease within 1.3 kPa (9.8 mmHg, 0.38 inHg) for 15 seconds under a vacuum of -66.7 kPa (-500 mmHg, -19.69 inHg).
When connected to the engine side (C):
Vacuum should not exist.
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Replace vacuum hose assembly if vacuum hose and check valve are malfunctioning.