Lincoln F68Z-10884-AA Sender Assembly - Temperature

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First of all, a light or gauge on the dash, and a sending unit on the engine are used in the coolant temperature indicator system. In case of overheating, check the coolant level, wiring, and fuses. Grounding wire to the sending unit helps to test the circuit. In case of any need, replace the sending unit. Also, check the coolant type and mixture. The electrical connector should be disconnected to enable you to remove the sensor from the engine so that you can replace it with a new one.

The coolant temperature indicator system includes a dash warning light or gauge and a temperature sending unit on the engine. Four-cylinder and post-2008 V6 models use a Cylinder Head Temperature sensor, while pre-2009 V6 models use an Engine Coolant Temperature sensor. These sensors inform the Powertrain Control Module and function as the coolant temperature sending unit. If overheating is indicated, check the coolant level and wiring harness connectors. The indicator light should come on when the ignition is turned to START and go out once the engine starts, unless the engine overheats. If the light doesn't behave as expected, it could be due to a faulty bulb, ignition switch, circuit, grounded wire, or sending unit. Ensure the coolant is correctly mixed to activate the sending unit.

The MAF sensor measures air entering the engine. You should check for power, signal voltage (0.2 to 1.5 volts at idle, increasing to about 2.0 volts at 60 mph), and use an ohmmeter for resistance checks.

Some possible reasons for the indicator light not being on when the ignition switch is turned on and the starter motor is turning include a burned-out bulb, faulty ignition switch, or open circuit.

Disconnect the electrical connector from the ECT sensor.

The coolant should be checked to ensure it is of the proper type and mixture.

The coolant temperature indicator system includes a warning light or temperature gauge on the dash and a coolant temperature sending unit on the engine.

Installation is the reverse of removal.