Chevrolet Sonic Repair Manual: Air Injection

Emissions

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Secondary Air Injection Check Valve Installation

Install a NEW secondary air injection check valve gasket (1). Install the secondary air injection check valve (2). Caution: Refer to Fastener Caution. Install the ...

Other materials:

Lockout Protection
If the driver side power door lock switch is pressed when the driver door is open and the key is in the ignition, all of the doors will lock and then the driver door will unlock. If Unlocked Door Anti Lockout is turned on and: the vehicle is off, the driver door is open, and door locking is r ...

Engine Oil Pressure Indicator Switch Replacement
Engine Oil Pressure Indicator Switch Replacement Callout Component Name 1 Engine Oil Pressure Indicator Switch Caution: Refer to  Component Fastener Tightening Caution. Procedure Place coll ...

Brake Rotor Thickness Variation Measurement
Warning: Refer to Brake Dust Warning. Note: Any disc brake rotor that exhibits thickness variation exceeding the maximum acceptable level must be refinished or replaced. Thickness variation exceeding the maximum acceptable level can cause brake pulsation. If the inboard fricti ...