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:

Door Locks
To lock or unlock the doors from outside the vehicle: Use the key in the driver door to lock all doors or unlock the driver door only. Press or on the Remote Keyless Entry (RKE) transmitter. See Remote Keyless Entry (RKE) System Operation. To lock the doors from inside the vehic ...

What to Use
Warning Adding only plain water or some other liquid to the cooling system can be dangerous. Plain water and other liquids, can boil before the proper coolant mixture will. The coolant warning system is set for the proper coolant mixture. With plain water or the wrong mixture, the engine coul ...

Air Conditioning (AC) Refrigerant Filter Replacement
Special Tools GE 39400-A Halogen Leak Detector For equivalent regional tools, refer to Special Tools. Removal Procedure Recover the refrigerant. Refer to Refrigerant Recovery and Recharging. Remove the air conditioning condenser. Refer to Air Conditioning Condenser Repl ...

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