Chevrolet Sonic Repair Manual: Spark Plug Replacement

Spark Plug Inspection

Spark Plug Usage Ensure that the correct spark plug is installed. An incorrect spark plug causes driveability conditions. Ensure that the spark plug has the correct heat range. An ...

Intake and Forced Induction

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Driving for Better Fuel Economy
Driving habits can affect fuel mileage. Here are some driving tips to get the best fuel economy possible. Avoid fast starts and accelerate smoothly. Brake gradually and avoid abrupt stops. Avoid idling the engine for long periods of time. When road and weather conditions are appropriate, ...

Rear Window Wiper Blade Replacement
Rear Window Wiper Blade Replacement Callout Component Name Preliminary Procedure Lift the rear window wiper arm off the rear window and release the rear window wiper blade from the rear window wiper arm. 1 ...

Transmission Fluid Cooler Flushing and Flow Test
GM studies indicate that plugged or restricted transmission oil coolers and pipes cause insufficient transmission lubrication and elevated operating temperatures which can lead to premature transmission failure. Many repeat repair cases could have been prevented by following published procedur ...