Chevrolet Sonic Repair Manual: Crankshaft Rear Oil Seal Replacement

Chevrolet Sonic Repair Manual / Powertrain / Engine / Engine Block / Seals and Gaskets / Crankshaft Rear Oil Seal Replacement

Special Tools

EN-658 Rear Main Seal Installer

For equivalent regional tools, refer to Special Tools.

Removal Procedure

If equipped with automatic transmission, remove the flex plate. Refer to Automatic Transmission Flex Plate Replacement.
If equipped with a manual transmission, remove the flywheel. Refer to Engine Flywheel Replacement.

Note:

Do not damage the outside diameter of the crankshaft or chamber with any tool.

Using a flat-bladed tool, remove the rear crankshaft oil seal (1).

Installation Procedure

Install the crankshaft rear oil seal (1) with EN-658 installer

Install the crankshaft rear oil seal (1) with EN-658 installer (2).

Using the EN-658 installer (2) , install a NEW crankshaft real oil seal (1).
If equipped with a manual transmission, install the flywheel. Refer to Engine Flywheel Replacement.
If equipped with automatic transmission, install the flex plate. Refer to Automatic Transmission Flex Plate Replacement.

Crankshaft Rear Oil Seal Installation

Special Tools EN-658-1 Installer EN-235-6 Installer For equivalent regional tools, refer to Special Tools. Slide the crankshaft rear oil seal (2) across the EN-235-6 installe ...

Exhaust2

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Other materials:

Auxiliary Devices
The optional AUX input allows portable devices to connect to the vehicle using the 3.5 mm(1/8 in) input jack. The AUX input jack, if equipped, is in the storage area to the right of the infotainment system. A second AUX input is on the front of the infotainment system, if equipped. See Overvi ...

Cooling Fan Description and Operation (LUV)
The engine cooling fan system is composed of one cooling fan, a series of 5 relays, the engine control module (ECM), and the associated wiring. The cooling fan assembly includes two resistors. This combination of components enables the ECM to operate the cooling fan at 3 speeds usi ...

Piston, Connecting Rod, and Bearing Cleaning and Inspection
Special Tools EN-470-B Angular Torque Wrench For equivalent regional tools, refer to Special Tools. Visual Inspection And Cleaning Procedure Connecting Rod Warning: Wear safety glasses when using compressed air in order to prevent eye injury. Clean the connecting rod ...

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