Chevrolet Sonic Repair Manual: Automatic Transmission Flex Plate Replacement

Chevrolet Sonic Repair Manual / Powertrain / Engine / General / Automatic Transmission Flex Plate Replacement

Automatic Transmission Flex Plate Replacement
Callout	Component Name
Preliminary Procedure Remove the transmission. Refer to Transmission Replacement. Special Tools EN-470-B Angular Torque Wrench EN-49979 Crankshaft Shock Mount Retainer For equivalent regional tools, refer to Special Tools.
1	Automatic Transmission Flex Plate Fastener (Qty: 6) Caution: Refer to Fastener Caution. Procedure Ensure to use a NEW fastener whenever the automatic transmission flex plate is removed. Tighten 35 Y (26 lb ft) Tighten the bolt an additional 30 degrees, and one more pass at 15 degrees using EN-470-B wrench .
2	Flex Plate
3	Automatic Transmission Flex Plate Procedure Inspect the automatic transmission flex plate for the following: Stress cracks around the flex plate. Cracks at welded areas that retain the ring gear onto the flex plate. Damaged or missing ring gear teeth. Do not attempt to repair the welded areas that retain the ring gear to the automatic transmission flex plate. Install a new flex plate.

Automatic Transmission Flex Plate Removal

Special Tools EN-652 Automatic Transmission Flex Plate Holder For equivalent regional tools, refer to Special Tools. Install the EN-652 holder (1) to hold the automatic transmiss ...

Battery Charging

Special Tools EL 50313 Battery Tester For equivalent regional tools, refer to Special Tools. Diagnostic Aids For best results, use an automatic taper-rate battery charger with a ...

Other materials:

Engine Oil
To ensure proper engine performance and long life, careful attention must be paid to engine oil. Following these simple, but important steps will help protect your investment: Always use engine oil approved to the proper specification and of the proper viscosity grade. See “Selecting th ...

Engine Support Fixture
2- Engine Support Fixture Callout Component Name Preliminary Procedure Remove the radiator opening upper cover. Refer to Front Opening Upper Cover Replacement Special Tools EN-28467-300 Engine Support Fixture Adapter ...

Automatic Transmission Flex Plate Installation
Special Tools EN-652 Automatic Transmission Flex Plate Holder For equivalent regional tools, refer to Special Tools. Clean the automatic transmission flex plate bolt threads. Install the automatic transmission flex plate (2) and the EN-652 holder to hold the automatic tran ...

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