Chevrolet Sonic manuals

Chevrolet Sonic Repair Manual: Engine Coolant Thermostat Replacement (LUW)

Chevrolet Sonic Repair Manual / Powertrain / Engine / Engine Cooling / Thermostat / Engine Coolant Thermostat Replacement (LUW)

Removal Procedure

    Warning:

    Refer to Battery Disconnect Warning.

  1. Disconnect the battery negative cable. Refer to Battery Negative Cable Disconnection and Connection.
  2. Drain the coolant. Refer to Cooling System Draining and Filling.


  3. Disconnect the engine wiring harness connector (1) and retainers (2).

  4. Remove the wiring harness bracket nut (3) and bracket (4).

  5. If equipped, disconnect the thermostat heating element sensor (1) and remove the radiator inlet hose (2).

  6. Remove the thermostat housing retaining bolts (1).

  7. Remove the thermostat (1) and discard the seal (2).
Installation Procedure

    Fit the thermostat (1) to the thermostat housing using a NEW seal (2).
  1. Fit the thermostat (1) to the thermostat housing using a NEW seal (2).

  2. Caution:

    Refer to Fastener Caution.

  3. Install the thermostat (2) and tighten the thermostat bolts (1) to 10 Y (89 lb in)

    .



  4. Install the radiator inlet hose (2) and connect the thermostat heating element sensor (1).

  5. Install the wiring harness bracket (4) and tighten the nut (3) to 10 Y (89 lb in)

    .



  6. Connect the engine harness connector (1) and harness retainers (2) to the bracket.
  7. Refill the engine cooling system. Refer to Cooling System Draining and Filling.
  8. Connect the battery negative cable. Refer to Battery Negative Cable Disconnection and Connection.
  9. Start the engine and check for coolant leaks.
Engine Coolant Thermostat Replacement (LUV)
Removal Procedure Drain the cooling system. Refer to Cooling System Draining and Filling. Remove the air cleaner outlet duct. Refer to Air Cleaner Outlet Duct Replacement. ...

Engine Coolant Thermostat Housing Installation
Caution: Refer to Engine Coolant Thermostat Housing Caution. Clean sealing surface. Install a NEW engine coolant thermostat housing seal. Install the engine coolant thermosta ...

Other materials:

Rear Side Door Window Regulator Replacement (Sedan)
Rear Side Door Window Regulator Replacement Callout Component Name Warning: Refer to Glass and Sheet Metal Handling Warning. Preliminary Procedure Remove the front side door window from the guide. Do Not remove ...

Air Cleaner Inlet Duct Replacement
Removal Procedure Remove the right front wheelhouse liner. Refer to Front Wheelhouse Liner Replacement. Remove the upper intake air duct plastic fastener (1). Pull the lower portion of the intake air duct outward to release the duct from the rub ...

Special Tools
Illustration Tool Number/Description 3-0207944 Main Shaft Tapered Bearing Insert Tool 39506289 Universal Adapter, 2.5L HST Engine 69604356 Gear Pullers ...

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