Chevrolet Sonic Repair Manual: ATF Lines

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 transm ...

Transmission Fluid Cooler Hose/Pipe Quick-Connect Fitting Disconnection and Connection

Removal Procedure Note: Perform the following procedure when removing the retaining rings and cooler lines from the quick connect fittings located on the radiator a ...

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OnStar Overview
If equipped, this vehicle has a comprehensive, in-vehicle system that can connect to a live Advisor for Emergency, Security, Navigation, Connection, and Diagnostic Services. The OnStar system status light is next to the OnStar buttons. If the status light is: Solid Green: System is read ...

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 ...

Fuel System Cleaning
Note: If the fuel filter is plugged, the fuel tank should be inspected internally and cleaned if necessary. Drain the fuel tank. Refer to  Fuel Tank Draining. Remove the fuel pump module assembly. Refer to  Fuel Tank Fuel Pump Module Replacement. Inspect the fue ...