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:

New Vehicle Break-In
Caution The vehicle does not need an elaborate break-in. But it will perform better in the long run if you follow these guidelines: . Do not drive at any one constant speed, fast or slow, for the first 805 km (500 mi). Do not make full-throttle starts. Avoid downshifting to brake or slo ...

Special Tools (MIT Tool Instructions)
Bluetooth Pairing for Vehicles with Radio RPO: UF7 Either reset the pin code on the radio to 0000, or go under Device Info on the radio and see what the pin code is (to enter it later on the MIT). Turn the BT discoverable ON in the radio Bluetooth settings. Press Pair De ...

Timing Belt Upper Front Cover Installation
Install the timing belt upper front cover (1). Caution: Refer to Fastener Caution. Install the 2 timing belt upper front cover bolts (2) and tighten to  6 Y(53 lb in). ...

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