Chevrolet Sonic Repair Manual: Camshaft Replacement
Special Tools
EN-422 Installer
For equivalent regional tools, refer to Special Tools.
- Removal Procedure
-
- Remove the timing belt rear cover (1). Refer to Timing Belt Rear Cover Replacement.
- Remove the camshaft position solenoid valve housing bolts (1) and housing (2).
- Remove the camshaft cap bolts in sequence (1, 4, 2, 3).
- Remove the camshaft caps.
- Remove the exhaust camshaft (1) and intake camshaft (3) as necessary.
- Remove exhaust camshaft seal (2) and intake camshaft seal (4) as necessary.
Note:
Take extreme care to prevent any scratches, nicks or damage to the camshafts and caps bearing surfaces.
Note:
Mark the camshafts upon removal to ensure installation is in the correct position.
Note:
The camshaft seal MUST be replaced whenever the camshaft is removed.
- Installation Procedure
-
- Coat and lubricate the camshaft bearing and cam surfaces with clean engine oil.
- Apply sealant to the surface (1) of the 1st camshaft bearing cap.
- Install the exhaust camshaft (1) and intake camshaft (2) on the cylinder head.
- Install the camshaft bearing caps in sequence (2, 3, 1, 4) Tighten the
camshaft bearing cap bolts to 8 Y (71 lb in)
.
- Install the camshaft position solenoid valve housing (2) and camshaft
position solenoid valve housing bolts (1). Tighten the bolts to 8 Y (71 lb in)
.
- Install the new camshaft oil seal rings using EN-422 installer .
- Install the timing belt rear cover (1) and tighten the bolts (2) to
6 Y (53 lb in)
. Refer to Timing Belt Rear Cover Replacement.
Note:
It is essential to ensure that no sealant is applied outside the marked sealing areas.
Caution:
Refer to Fastener Caution.
Camshaft Removal
Note: Note removal sequence 1?E.
Remove the 4 camshaft bearing cap bolts.
Note: Release the bearing support by striking it gently with a
plastic hammer.
...
Exhaust Camshaft Installation
Note: Mind the markings on the camshaft bearing caps. Camshaft
bearing caps should be installed in their original position.
Lubricate camshaft and camshaft bearing caps with eng ...
Other materials:
Airbag Steering Wheel Module Coil Centering
Note: If a double wire harness strap is installed onto the wire
harness assembly and steering column, the original holder for the wire strap(s)
MUST be reused during installation.
Remove the wire harness strap(s) where necessary.
Caution: The new SIR coil assembly will ...
Tire Pressure Monitor Description and Operation
Tire Pressure Monitoring Block Diagram
...
Evaporative Emission Canister Replacement (Steel Tank)
Removal Procedure
Remove the evaporative emission canister bracket fasteners (1).
Disconnect the purge solenoid valve electrical connector (1).
Disconnect the evaporative emission canister vent hose (2).
Disconnect the evaporative emission c ...
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