Chevrolet Sonic Repair Manual: Catalytic Converter

Secondary Air Injection System Description

The Secondary Air Injection System aids in the reduction of hydrocarbon exhaust emissions during a cold start. This occurs when the start-up engine coolant temperature (ECT) is between −10 t ...

Catalytic Converter Heat Shield Replacement (LUV)

Catalytic Converter Heat Shield Replacement Callout Component Name Warning: Refer to Exhaust Service Warning. ...

Other materials:

Wheel Alignment and Tire Balance
The tires and wheels were aligned and balanced at the factory to provide the longest tire life and best overall performance. Adjustments to wheel alignment and tire balancing are not necessary on a regular basis. Consider an alignment check if there is unusual tire wear or the vehicle is signi ...

Data Link Communications Description and Operation
Note: This is an overview of different serial data buses used by GM devices to communicate with each others. Use Data Communication Schematics to find out which serial data buses are configured for a specific vehicle. Circuit Description There are many components in a vehicle t ...

Gears Cleaning and Inspection (Gen 2)
Gears Warning: Wear safety glasses to avoid injury when using compressed air or any cleaning solvent. Bodily injury may occur if fumes are inhaled or if skin is exposed to chemicals. Clean the following gears in a suitable solvent and air dry all the p ...