GM Service Manual Online
For 1990-2009 cars only
Makes
🢒
Buick
🢒
2005
🢒
Terraza - 4WD
🢒
Engine
🢒
Engine Mechanical - 3.5L (LX9)
🢒 Cylinder Head Replacement - Right Side
Tools Required
J 45059
Angle Meter
Removal Procedure
Raise and support the vehicle. Refer to
Lifting and Jacking the Vehicle
in General Information.
Drain the cooling system. Refer to
Cooling System Draining and Filling
in Engine Cooling.
Drain the engine oil. Refer to
Engine Oil and Oil Filter Replacement
.
Lower the vehicle.
Remove the lower intake manifold. Refer to
Lower Intake Manifold Replacement
.
Remove the valve rocker arms and pushrods. Refer to
Valve Rocker Arm and Push Rod Replacement
.
Remove the exhaust crossover pipe. Refer to
Exhaust Crossover Pipe Replacement
.
Remove the right spark plug wires from the spark plugs. Refer to
Spark Plug Wire Replacement
in Engine Controls - 3.5L.
Remove the right spark plugs. Refer to
Spark Plug Replacement
in Engine Controls - 3.5L.
Remove the generator. Refer to
Generator Replacement
in Engine Electrical.
Remove the right exhaust manifold. Refer to
Exhaust Manifold Replacement - Right Side
in Engine Exhaust.
Remove the right cylinder head bolts and discard.
Remove the right cylinder head.
Remove the right cylinder head gasket.
Clean and inspect the cylinder head and the gasket mating surfaces. Refer to
Engine Block Cleaning and Inspection
and
Cylinder Head Cleaning and Inspection
.
Installation Procedure
Install a new right cylinder head gasket.
Install the right cylinder head over the locator pins and the gasket.
Notice:
Refer to
Fastener Notice
in the Preface section.
Install the new cylinder head bolts
Tighten
Tighten the bolts in sequence to 60 N·m (44 lb ft).
Use the
J 45059
to rotate the bolts in sequence an additional 95 degrees.
Install the right exhaust manifold. Refer to
Exhaust Manifold Replacement - Right Side
.
Install the generator. Refer to
Generator Replacement
in Engine Electrical.
Install the right spark plugs. Refer to
Spark Plug Replacement
in Engine Controls - 3.5L.
Install the right spark plug wires to the spark plugs. Refer to
Spark Plug Wire Replacement
in Engine Controls - 3.5L.
Install the exhaust crossover pipe. Refer to
Exhaust Crossover Pipe Replacement
.
Install the pushrods and valve rocker arms. Refer to
Valve Rocker Arm and Push Rod Replacement
.
Install the lower intake manifold. Refer to
Lower Intake Manifold Replacement
.
Fill the crankcase with engine oil. Refer to
Engine Oil and Oil Filter Replacement
.
Fill the cooling system. Refer to
Cooling System Draining and Filling
in Engine Cooling.
Inspect for leaks.