GS 450h V6-3.5L (2GR-FSE) Hybrid (2007)
NOTICE: The measurement must be done as quickly as possible.
Standard compression pressure: 1.0 MPa (10 kgf/cm2, 143 psi) or more
Minimum compression pressure: 0.7 MPa (7.1 kgf/cm2, 101 psi)
(6) Turn the power switch OFF and the intelligent tester main switch off.
(v) Check the pressure difference between each compression pressure.
Pressure difference: 0.1 MPa (1.0 kgf/cm2, 15 psi) or less
(w) If the cylinder compression in one or more cylinders is low, pour a small amount of engine oil into the cylinder through the spark plug hole.
Then perform the first 3 steps under "inspect the cylinder compression pressure" for the cylinders with low compression.
HINT:
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If adding oil helps boost the compression, it is likely that the piston rings and/or cylinder bore are worn or damaged.
^
If pressure stays low, a valve may be stuck or seated improperly, or there may be leakage in the gasket.
(x) Connect the 2 injector driver connectors as shown in the illustration.
(y) Install the 6 spark plugs.
Torque: 18 N*m (184 kgf*cm, 13 ft.*lbf)
(z)
Install the 6 ignition coils.
Torque: 10 N*m (102 kgf*cm, 7 ft.*lbf)
(aa)
Connect the 6 injector connectors.
(ab)
Connect the throttle body connector.
(ac)
Connect the 4 connectors.