Chevrolet Sonic Repair Manual: Engine Block Disassemble
- Remove the cylinder head locating (1, 2).
- Remove the oil pressure switch (1).
- Remove the knock sensor bolt (2) and the knock sensor (1).
- Clean the thread.
- Remove the oil flow check valve (1).
- Remove the oil pressure relief valve closure bolt (1) and the oil pressure relief valve.
- Remove the piston (1) and spring (2) from the oil pressure relief valve closure bolt (3).
- Clean and inspect the components. Refer to Engine Block Cleaning and Inspection.
- Clean the thread.
- Remove the 4 piston oil nozzles (1).
Engine Block Assemble
Install the 4 piston oil nozzles (1).
Caution: Refer to Fastener Caution.
Install the 4 piston oil nozzle bolts (2) and tighten to 25 Y ...
Engine Block Cleaning and Inspection
Special Tools
EN-8087 Cylinder Gauge
For equivalent regional tools, refer to Special Tools.
Clean the sealing material from the gasket mating surfaces (2).
Clean the engine blo ...
Other materials:
Dome Lamps
The dome lamp controls are in the headliner above the rear seats.
(Dome Lamp Override): Press to turn
the lamps off, even when a door is open.
(Door): When the button is returned
to the middle position, the lamps turn on automatically when a door is opened.
| (On): Press to turn on the dom ...
Engine Coolant Thermostat Housing Removal
Caution: Refer to Engine Coolant Thermostat Housing Caution.
Remove the engine coolant thermostat housing retainer nut (4).
Remove the engine coolant thermostat housing retainer (1).
Remove the 4 engine coolant thermostat housing bolts (3).
Remo ...
Engine Oil Cooler Removal
Remove the oil cooler coolant outlet hose clamp (1).
Remove the oil cooler coolant outlet hose (2) from engine coolant thermostat
housing.
Remove the oil cooler coolant inlet hose clamp (3).
Remove the oil cooler coolant inlet hose (4) from water outlet. ...
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