Chevrolet Sonic Repair Manual: Cylinder Head Removal
- Loosen the 12 cylinder head bolts in the sequence as shown. Use the following procedure:
- Loosen the cylinder head bolts 90 degrees.
- Loosen the cylinder head bolts 180 degrees.
- Remove the 12 cylinder head bolts (1).
- Remove the cylinder head (2).
- Remove the cylinder head gasket (3).
Note:
Do not damage the guide sleeves (4) and (5).
Cylinder Head Installation
Special Tools
EN-45059 Torque Angle Sensor Kit
For equivalent regional tools, refer to Special Tools.
Clean the sealing surfaces.
Inspect for plane surface.
Cylinder block, cylinder h ...
Cylinder Head Replacement
Special Tools
BO-38185 Hose Clamp Pliers
EN-45059 Angle Meter
For equivalent regional tools, refer to Special Tools.
Removal Procedure
Disconnect the negative battery cable. Re ...
Other materials:
Adding Equipment to the Airbag-Equipped Vehicle
Adding accessories that change the vehicle's frame, bumper system, height, front
end, or side sheet metal may keep the airbag system from working properly. The operation
of the airbag system can also be affected by changing any parts of the front seats,
safety belts, the airbag sensing and ...
Replacing Airbag System Parts after a Crash
Warning
A crash can damage the airbag systems in the vehicle. A damaged airbag system
may not work properly and may not protect you and your passenger(s) in a crash,
resulting in serious injury or even death. To help make sure the airbag systems
are working properly after a crash, have them i ...
Body Control System Description and Operation
The body control system consists of the body control module (BCM), communications,
and various input and outputs. Some inputs, outputs and messages require other modules
to interact with the BCM. The BCM also has discrete input and output terminals to
control the vehicle's body functions. ...
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