Chevrolet Sonic Repair Manual: Gears Cleaning and Inspection (Gen 1)

Chevrolet Sonic Repair Manual / Powertrain / Transmission/Transaxle / Manual / General / Gears Cleaning and Inspection (Gen 1)

Gears

Warning:

Wear safety glasses to avoid injury when using compressed air or any cleaning solvent. Bodily injury may occur if fumes are inhaled or if skin is exposed to chemicals.

Clean the following gears in a suitable solvent and air dry all the parts.

1st gear (1)
2nd gear assembly (4)
3rd gear assembly (3)
4th gear assembly (2)
Reverse idler gear (5)

Inspect the gear tooth surfaces on all the gears for the following conditions:

Cracks
Pitting
Nicks
Chipped gear teeth
High spots ?small shiny spots on the gear teeth mating surfaces

Input Shaft

Clean the input shaft (1) in a suitable solvent.
Clean and air dry the oil gallery.
Inspect the input shaft bearing surfaces for the following conditions:

Wear
Lack of lubricant
Debris embedded in the oil grooves
Brinelling

Inspect the input shaft splines for wear or damage.

Replace the input shaft if any of the above conditions are found.

Main Shaft

Clean the main shaft (1) in a suitable solvent.
Clean and air dry the oil gallery.
Inspect the main shaft bearing surfaces for the following conditions:

Wear
Lack of lubricant
Debris embedded in the oil grooves
Brinelling

Inspect the main shaft splines for wear or damage.

Replace the main shaft if any of the above conditions are found.

Reverse Idler Gear and Shaft

Clean the reverse idler gear (1) and shaft (2) in

Clean the reverse idler gear (1) and shaft (2) in a suitable solvent and air dry all the parts.
Inspect the reverse idler gear bushing (3) for the following conditions:

Excessive wear
Scoring
Pitting

Replace the reverse idler gear if the bushing is faulty.

Inspect the reverse idler gear shaft for the following conditions:

Excessive wear
Scoring
Pitting

Replace the reverse idler gear shaft if it is faulty.

Gear Position Sensor Replacement

Gear Position Sensor Replacement Callout Component Name Preliminary Procedure Unclip the engine control module (ECM) and bracke ...

Gears Cleaning and Inspection (Gen 2)

Gears Warning: Wear safety glasses to avoid injury when using compressed air or any cleaning solvent. Bodily injury may occur if fumes are inhaled or if skin is exp ...

Other materials:

Rear Vision Camera Location
The camera is above the license plate. The area displayed by the camera is limited. It does not display objects that are close to either corner or under the bumper and can vary depending on vehicle orientation or road conditions. Displayed images may be closer or farther than they appear. ...

Drive Sprocket, Driven Sprocket, and Drive Link Cleaning and Inspection
Drive Sprocket, Driven Sprocket, and Drive Link Cleaning and Inspection Callout Component Name 1 Drive Sprocket Thrust Washer 2 Drive Sprocket Retainer Ring 3 Drive ...

Transmission Replacement (With 1.2L or 1.4L Engine)
Removal Procedure Remove the battery tray. Refer to Battery Tray Replacement. Without draining the coolant or removing the hoses, remove and position aside the radiator surge tank. Refer to Radiator Surge Tank Replacement. Remove the transmission range selector lever c ...

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