Chevrolet Sonic manuals

Chevrolet Sonic Repair Manual: Automatic Transmission Flex Plate Replacement

Chevrolet Sonic Repair Manual / Powertrain / Transmission/Transaxle / Flywheel/Flexplate / 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:

  1. Stress cracks around the flex plate.
  2. Cracks at welded areas that retain the ring gear onto the flex plate.
  3. Damaged or missing ring gear teeth.
  4. 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 trans ...

Engine Flywheel Installation
Special Tools EN-652 Flywheel Holder EN-45059 Torque Angle Sensor Kit For equivalent regional tools, refer to Special Tools. Clean the thread in the crankshaft. Install the cra ...

Other materials:

Event Data Recorders
This vehicle is equipped with an event data recorder (EDR). The main purpose of an EDR is to record, in certain crash or near crash-like situations, such as an air bag deployment or hitting a road obstacle, data that will assist in understanding how a vehicle’s systems performed. The EDR is ...

Tire Dismounting and Mounting
Caution: Use a tire changing machine in order to dismount tires. Do not use hand tools or tire irons alone in order to remove the tire from the wheel. Damage to the tire beads or the wheel rim could result. Caution: Do not scratch or damage the clear coating on aluminum wheels wit ...

Engine Oil Cooler Removal
Remove the oil cooler coolant outlet hose clamp (1). Remove the oil cooler coolant outlet hose (2) from engine coolant thermostat housing. Remove the oil cooler coolant inlet hose clamp (3). Remove the oil cooler coolant inlet hose (4) from water outlet. ...

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