Armada 2WD V8-5.6L (VK56DE) (2006)
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Vacuum Brake Booster: Service and Repair
Vacuum Lines
VACUUM LINES
1. Disconnect vacuum hose from hose clip.
2. Release clamps and disconnect vacuum hose.
3. Remove check valve from brake booster.
4. Installation is in the reverse order of removal.
CAUTION:
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Insert vacuum hose for at least 24 mm (0.94 inch).
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Do not use lubricating oil during assembly.
Inspection
VISUAL INSPECTION
Check for improper assembly, damage and deterioration.
CHECK VALVE INSPECTION
Airtightness Inspection
Use a suitable vacuum pump to check. Connect to brake booster side of check valve.
Check valve specification: 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)
