< REMOVAL AND INSTALLATION >
• Use a handy vacuum pump (A) to check.
• Replace vacuum hose assembly if vacuum hose and check valve
IInstall the vacuum hose and tube.
• Because vacuum hose contains a check valve, it must be
installed in the correct position. Refer to the stamp to confirm
• Insert vacuum hose at least 24 mm (0.94 in) (A).
uum hose (built in check valve).
When connected to the brake booster side (B) :
Vacuum should decrease within 1.3 kPa (10 mm-
When connected to the engine side (C) :
Vacuum should not exist.