Mopar 33004281 Sensor-COOLANT Temperature

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For the charge temperature sensor, unplug the electrical connector, unscrew the sensor, coat the threads of the new sensor with tape, and install it securely.

In the event of an overheating indication, it is recommended to:a. First, check the coolant level in the system.b. Ensure that the wiring between the indicator light or gauge and the sending unit is secure.c. Verify that all fuses are intact.

If an overheating indication occurs, it is important to check the coolant level and ensure the wiring between the light or gauge and the sending unit is secure, as well as checking for intact fuses.

The vehicle speed sensor sends a voltage signal to the computer to determine vehicle speed.

The engine coolant temperature sensor, a thermistor that varies resistance with temperature, is essential for the vehicle's operation. Testing involves measuring its resistance when cold and warm; a significant difference could indicate sensor failure. Replacing it necessitates preparing the new sensor with Teflon sealing, unplugging the electrical connector, and swiftly replacing the sensor to minimize coolant leakage. The manifold absolute pressure (MAP) sensor monitors intake manifold pressure changes, aiding the ECM in fuel delivery and ignition timing control. Testing involves connecting jumper wires, and a voltmeter should read about 4.5 to 5 volts with the ignition on and fluctuate when the engine warms up; failure may trigger Code 3Replacement requires detaching the vacuum hose, unplugging the electrical connector, and removing mounting screws. The oxygen sensor, positioned in the exhaust system, monitors exhaust gas oxygen content to inform the ECM's fuel mixture control. Testing with a voltmeter at normal operating temperature should result in voltage fluctuations; a lack of variation might indicate sensor or fuel system issues, leading to Code 13 or 4 The throttle position sensor (TPS) on the carburetor float bowl helps the ECM determine fuel delivery based on throttle valve angle. Check its resistance with an ohmmeter, and if it's inconsistent instead of progressive as you move the throttle, replace it. Replacement involves unplugging the electrical connector and removing the TPS assembly. Adjustment, if needed, requires drilling a hole in the adjustment screw's plug, connecting terminals, and adjusting the screw to achieve a specific voltage reading. Finally, the plug is replaced or sealed with RTV.