Chevrolet Sonic Repair Manual: Fuel and Evaporative Emission Hose/Pipe Connection Cleaning Caution

Caution:

Clean all of the following areas before performing any disconnections in order to avoid possible contamination in the system:

• The fuel pipe connections
• The hose connections
• The areas surrounding the connections

Evaporative Emission System Hose/Pipe Replacement

Removal Procedure Disconnect the evaporative emission pipe (1). Refer to Plastic Collar Quick Connect Fitting Service. Remove the plastic retainer  ...

Fuel and Evaporative Emission Pipe Warning

Warning: In order to reduce the risk of fire and personal injury observe the following items: Replace all nylon fuel pipes that are nicked, scratched or damaged during installation, d ...

Other materials:

Electronic Brake Control Module Replacement
Removal Procedure Warning: Refer to Brake Fluid Irritant Warning. Caution: Refer to Brake Fluid Effects on Paint and Electrical Components Caution. Remove the battery tray. Refer to Battery Tray Replacement. Disconnect the electronic brake control module (EBC ...

Exhaust Manifold Cleaning and Inspection
Clean the exhaust manifold (1) in solvent. Warning: Wear safety glasses in order to avoid eye damage. Dry the exhaust manifold (1) with compressed air. An exhaust manifold leak or damage may cause an exhaust leak and may effect OBD II system perf ...

Knock Sensor System Description
Circuit/System Description The knock sensor system enables the engine control module (ECM) to control the ignition timing for the best possible performance while protecting the engine from potentially damaging levels of detonation. The ECM uses the knock sensor system to test for ...