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:

Special Tools (MIT Tool Instructions)
Bluetooth Pairing for Vehicles with Radio RPO: UF7 Either reset the pin code on the radio to 0000, or go under Device Info on the radio and see what the pin code is (to enter it later on the MIT). Turn the BT discoverable ON in the radio Bluetooth settings. Press Pair De ...

Crankcase Ventilation System Inspection/Diagnosis
Results of Incorrect Operation A plugged positive crankcase ventilation (PCV) orifice or hose may cause the following conditions: Rough idle Stalling or slow idle speed Oil leaks Oil in the throttle body Sludge in the engine Functional Check With thes ...

Inspection/Maintenance Complete System Set Procedure
Diagnostic Instructions Perform the Diagnostic System Check - Vehicle prior to using this diagnostic procedure. Review Strategy Based Diagnosis for an overview of the diagnostic approach. Diagnostic Procedure Instructions provides an overview of each diagnostic cat ...