Chevrolet Sonic Repair Manual: Valvetrain

Starter Replacement (LUW)

Removal Procedure Disconnect the negative battery cable. Refer to Battery Negative Cable Disconnection and Connection. Raise and support the vehicle. Refer to Lifting and Jacking ...

Valve Guide Reaming, and Valve and Seat Grinding

Valve Cleaning Procedure Use soft bristle wire brush to clean any carbon build-up from the valve head. DO NOT use a wire brush on any part of the valve stem. The valve stem is chr ...

Other materials:

Tire Rotation and Required Services Every 12 000 km/ 7,500 mi
Rotate the tires, if recommended for the vehicle, and perform the following services. See Tire Rotation. Check engine oil level and oil life percentage. If needed, change engine oil and filter, and reset oil life system. See Engine Oil  and Engine Oil Life System. Check engine coo ...

Oil Pan Removal
Remove the 16 oil pan bolts (1). Caution: Pry the oil pan carefully in order to prevent damage to the transaxle case or the oil pan sealing surfaces. Place a suitable prying tool to the area shown (1) and carefully pry the oil pan loose. R ...

Input Speed Sensor Replacement
Removal Procedure Remove the control solenoid valve and transmission control module assembly. Refer to Control Solenoid Valve and Transmission Control Module Assembly Replacement. Remove the input speed sensor bolt (2) M6 x 23. Unlock t ...