Coolant Temperature Sensor/Switch (For Computer): Service and Repair
ENGINE COOLANT TEMPERATURE (ECT) SENSORRemoval and Installation
1. CAUTION: Make sure the ignition switch is in the OFF position prior to working on the electronic engine controls.
Turn the ignition switch to the OFF position.
2. WARNING:
- Never remove the pressure radiator relief cap while the engine is hot. Failure to follow these instructions can result in damage to the cooling system or engine or result in personal injury. To avoid having scalding hot coolant or steam blow out of the degas bottle when removing the pressure relief cap, wait until the engine has cooled, then wrap a thick cloth around the pressure relief cap and turn it slowly. Step back while the pressure is released from the cooling system. When certain all the pressure has been released, (still with a cloth) turn and remove the pressure relief cap. Failure to follow these instructions can result in personal injury.
- The coolant must be recovered in a suitable, clean container for reuse. If the coolant is contaminated, it must be recycled or disposed of correctly and system filled with new coolant.
- Always fill the cooling system with the same type of coolant that was drained from the system. Do not mix coolant types.
Partially drain the cooling system.
3. Remove the retainers and the air deflector.
4. Remove the power steering reservoir bracket retainers.
5. Remove the power steering fluid indicator and retainers. Remove the power steering reservoir bracket. Install the power steering indicator and position aside.
6. Disconnect the coolant hoses from the air cleaner outlet pipe.
7. NOTE: Air cleaner side shown, engine side similar.
Loosen the clamps and remove the air cleaner outlet pipe.
8. NOTE: If there is any oil residue, clean both connecting ports and the inside surface of the charge air cooler pipe to prevent the pipe from blowing off.
Loosen the clamps and remove the charge air cooler (CAC) pipe.
9. Disconnect the engine coolant temperature (ECT) electrical connector.
10. Remove the ECT sensor.
11. NOTE: Apply clean engine oil to the O-ring seal before installation.
To install, reverse the removal procedure.
- Fill and bleed the engine cooling system.