Mercury DOZZ-10884-A Sender Assembly - Temperature

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To replace Engine Coolant Temperature (ECT) sensor for 2011 models, drain the cooling system, wrap new sensor's threads with Teflon sealing tape, unplug the electrical connector and remove the sensor by thermostat housing. For 2001 and newer 2.3L models a Cylinder Head Temperature (CHT) sensor is used; disconnect battery, expose electrical connector, unscrew and remove CHT sensor. The Oxygen Sensor replacement involves disconnecting the battery, raising the vehicle and removing the O2 sensor using proper tool, apply anti-seize compound to new threads and tighten it into place. Throttle Position Sensor (TPS) replacement requires disconnecting of battery, removal of throttle body cover, unfastening of TPS and ensure proper alignment during installation. Replacing Mass Airflow Sensor (MAF) means; firstly you need to disconnect battery from its terminal, then undo electrical connection between MAF sensor's plug-in connectors followed by taking off MAF sensor itself lastly install new one with a fresh gasket on 2011 models. To control air conditioning clutch relay PCM controls this while checking fuses for any malfunctioning Air conditioning clutch control means that PCM operates this clutch relay as you verify fuses for defects which may be interfering with idle speed quality in your vehicle at all times Vehicle Speed Sensor (VSS) change applies to those vehicles made before 1997; therefore when replacing it you are supposed to detach an electric connector from a particular component installed in a car under consideration while removing retaining bolt also do not forget about reversing above mentioned process Intake Manifold Temperature Sensor replacement includes disconnecting the battery, unplugging the intake manifold temperature sensor connector, removing the IMTS from intake manifold Idle Air Control (IAC) valve replacement requires disconnection of battery power supply followed by taking IAC valve cover out where electronic wires should be disconnected only after unscrewing screws Power steering pressure switch inspection comprises of checking fuses as well as circuits that might be affecting idle quality in your automobile Camshaft Position (CMP) sensor replacement varies with model, which may include but not limited to separating the battery, loosening electrical connector, removing sensor then fitting the new one properly. Crankshaft Position (CKP) sensor replacement includes disconnecting battery, removal of things like accessory drive belt or alternator, unscrewing of the sensor and installing new one with specific alignment procedures for different models Brake Light Switch or Brake Pedal Position (BPP) Sensor information informs about its purpose that is to show whether brakes are applied or not and it is located on brake pedal assembly.

Do not ground the sending unit wire directly to the engine as it may damage the gauge or instrument voltage regulator. If the coolant temperature gauge is inoperative, check the fuses first. If all gauges have similar problems such as high readings, low readings, or erratic readings, the instrument voltage regulator may be at fault and should be tested by a dealer service department or qualified electrical shop. If the temperature indicator shows excessive temperature after running a while, troubleshoot the issue. If the temperature gauge indicates "Hot" shortly after the engine is started cold or does not indicate any increase in temperature, disconnect the wire at the coolant temperature sending unit. Turn the ignition key to On, but don't start the engine. Connect a 10-ohm resistor to the disconnected wire, then ground the resistor to the engine. The temperature gauge should indicate in the Hot range. Repeat the process using a 73-ohm resistor. If the gauge indicated properly in both steps, the sending unit is bad and needs to be replaced. If the gauge did not indicate properly, the circuit may be open or the gauge may be faulty. To replace the sending unit, start by removing the cap from the radiator to release any pressure, then replace the cap. Disconnect the electrical connector from the sending unit. Apply electrically conductive sealant to the threads of the new sending unit. Unscrew the old sending unit from the engine and quickly install the new one to prevent coolant loss. Tighten the sending unit securely and reconnect the electrical connector. Refill the cooling system, run the engine, and check for leaks and proper gauge operation.

The engine coolant temperature sensor monitors temperature changes and changes its resistance values. To test it, measure resistance values when cold and at operating temperature and check the signal voltage from the PCM.

Unscrew the old sending unit and install the new one as quickly as possible to minimize coolant loss. Tighten the sending unit securely and attach the wire.

The sending unit for the temperature gauge has only one wire going to it, while the unit that provides information to the computer has two or three wires.