Saturn 12608814 Sensor Assembly, Engine Coolant Temperature

Turn the ignition key to OFF. Drain the cooling system. It's not necessary to fully drain the coolant, but it must be drained to a level that's below the level of the ECT sensor. Disconnect the electrical connector from the ECT sensor, which is located at the right front (passenger's side) corner of the cylinder head on 2.0L supercharged engines, near the valve cover. On 2.2L and 2.4L engines, the sensor is located in the thermostat housing, between the two heater hose pipes. On 2008 and later 2.0L turbocharged engines, the sensor is located at the left rear of the cylinder head (driver's side). You may need to unbolt the under-hood fuse and relay center, moving it aside for access. Unscrew the ECT sensor and remove it. Wrap the threads of the ECT sensor with Teflon tape. Installation is the reverse of removal. Be sure to tighten the ECT sensor to the torque specifications. Refill the cooling system when you're done.

First of all, in this model covered, the Engine Coolant Temperature (ECT) sensor is an information sensor for components like the Powertrain Control Module (PCM) and functions as the coolant temperature sensor for the vehicle's temperature gauge. Be sure to check the coolant system.

Slightly remove the engine coolant and then unbend the cable from the negative terminal of the battery. In 3.0L V6 select the engine covers, unplug the electrical connector from the ECT sensor that is situated on the rear of the left cylinder head, above the starter bolt and loosen the sensor from the cylinder head. On 3.2L V6 vehicles, disconnect and remove the cowl panel and remove the windshield wiper motor and linkage, pull off the ECT electrical connector, and unscrew the probe of the sensor from the water crossover at the engine rear. For 2.8L and 3.6L V6 models, unplug the electrical connection of the ECT sensor that is at the left side cylinder head just behind the oil filter housing and unbolt the sensor from the cylinder head. On V8 models, the ECT sensor connector is located in the immediate vicinity of the sensor, which is screwed into the cylinder head; to remove it, first, disconnect the electrical connector and then unscrew the senso. Cover the threads of the new sensor with Teflon tape with an intention not only to avoid leakage, but also to protect the threads from corrosion, and then fit the sensor and tighten it to the recommended torque and then the cooling system is refilled.

On 6.0L models, the ECT sensor is located on the left cylinder head, in front of cylinder No. 1, just below the valve cover, while on non-6.0L models, it is positioned to the right of the throttle body, next to the thermostat housing. Begin by draining the cooling system to a level below the ECT sensor. For non-6.0L models, remove the air intake duct. Disconnect the electrical connector from the ECT sensor, then unscrew and remove the sensor. If reinstalling the old sensor, apply thread sealant to the threads; a new sensor should already have sealant applied. Installation follows the reverse order of removal, ensuring the ECT sensor is tightened to the specified torque. Finally, refill the cooling system.

Drain the cooling system below the ECT sensor level. Disconnect the electrical connector from the ECT sensor. Unscrew and remove the ECT sensor. If you're installing the old sensor, wrap the threads of the new ECT sensor with Teflon tape and the threads of the new sensor should already be coated with sealant. Installation is the reverse of removal. Be sure to tighten the ECT sensor to the torque specifications. Refill the cooling system.

The coolant temperature indicator usually has a warning light or a temperature gauge. In the models covered, the (ECT) also known as the Engine Coolant Temperature sensor is a crucial information sensor device for the Powertrain Control Module component and it also works as the coolant temperature sending unit on these models.

This procedure should only be attempted after the engine has cooled completely. Some of the coolant in the engine should be let out. There is a cable that needs to be disconnected from the negative terminal of the battery. The electrical connector for the ECT sensor must also be disconnected. On all engines, the ECT sensor is located on the left cylinder head near its front side. When unscrewing it from this region, do ensure that you employ enough caution. For purposes of avoiding leakage and thread corrosion, apply Tenon tape around these threads before fitting in a new one. Get the sensor into place and tighten it to meet specific torque requirements. Now refill your cooling system.

The coolant temperature indicator system includes a gauge or warning light on the dashboard and a sensor on the engine. The sensor serves multiple purposes, providing information for the fuel and engine control systems and sending data to the temperature gauge. To address an overheating indication, check the coolant level, secure the wiring between the gauge and sensor, and ensure all fuses are intact. Then, test the operation of the coolant temperature sensor and replace if defective. A faulty sensor should trigger a diagnostic trouble code (DTC) and illuminate the CHECK ENGINE light. If the sensor is working properly, have the temperature gauge checked by a dealer service department or a repair shop with a scan tool to access information from the Powertrain Control Module (PCM).

The coolant temperature system includes a dashboard warning light or gauge, and an engine coolant temperature (ECT) sensor. It also works as the coolant temperature-sending unit for the Powertrain Control Module (PCM). If overheating is indicated, check the coolant level and wiring harness connectors. When the ignition is turned to START, the light should come on, showing the bulb works. If it doesn't, the bulb may be burned out, the ignition switch faulty, or the circuit open. When turning on the engine, the light should go off; if not, the engine is overheating. If it stays on, there could be a grounded wire, a defective sending unit, or a faulty ignition switch. Also, check the coolant mix, as high water content may not activate the sending unit.

For V6 models,The location of the ECT sensor is on the left end of the front cylinder head. Drain the cooling system below the level of the ECT sensor. Unplug the ECT sensor from its electrical connector. Untwist and get rid of it. Wrap Teflon tape around the threads of your new ECT to prevent leakages. Reinstallation is just a reversal of removal operation. Remember to tighten up your ECT sensor properly. After completing all these steps, you need to refill your coolant system again. V8 models: The location of the ECT sensor is on the right end of the front cylinder head just above number one spark plug hole. Drain coolants so that their level becomes lower than that of ECT sensor. Unscrew and remove from this part as well as disconnecting its electrical connector with it first. This Teflon tape wrapped around ECT's threads will help in case liquid seeps out after installation in reverse order (of removal). Do not forget about tightening this device called an ECT sensor when everything else has been done already. Refill your coolant once through with this procedure accomplished entirely.

The coolant temperature indicator system consists of a temperature gauge, warning light, and engine-mounted sensor. It monitors engine coolant temperature. The ECT sensor is crucial as it signals the PCM and BCM to operate the temperature gauge. To address overheating, check coolant level and mixture. If the gauge stays at C, inspect wiring connections. A faulty ECT sensor may trigger the Check Engine light, requiring sensor replacement or circuit repair.

The thermistor is the Engine Coolant Temperature (ECT) sensor, which is a resistor that varies its resistance with temperature changes. The voltage signal from the sensor to the PCM will be directly influenced by variation in resistance values. During increase in sensor's temperature, the resistance values decrease while they increase during decrease in sensor's temperature. Finally, drain the cooling system to replace ECT sensor particularly on 5.3L engines where it is located at the front of driver's side cylinder head. Next disconnect electrical connector from the sensor harness and carefully remove ECT sensor out of engine body. At right rear of inline engines, there is a threaded hole for this same connection into cylinder head itself. Teflon sealing tape should be wound around these threads if new sensors do not have any sealing compound applied on them to avoid leaking. After removing it, you should reinstall it as it is and then refill the cooling system.

Coolant temperature indicator system has a dashboard temperature gauge, warning light, and an engine mounted sensor. Engine Coolant Temperature (ECT) sensor is an information sensor for the Powertrain Control Module (PCM) transmitting a signal to the PCM that operates the temperature gauge. First, if the overheating condition occurs, check the coolant level in the system and that the coolant mixture is correct. Also, before concluding that there's a problem with your temperature indicator, look in troubleshooting section at the beginning of this book. In case, you find out that your temperature gauge still does not move from C position then check wiring harness connections going into the instrument cluster. If there is a problem with your ECT sensor then it is highly possible that you will see Check Engine light come on indicating that you need to repair sensor or circuit.

Drain the cooling system below the ECT sensor level. Disconnect the electrical connector from the ECT sensor. Unscrew and remove the ECT sensor. If you're installing the old sensor, wrap the threads of the new ECT sensor with Teflon tape and the threads of the new sensor should already be coated with sealant. Installation is the reverse of removal. Be sure to tighten the ECT sensor to the torque specifications. Refill the cooling system.

The coolant temperature indicator system comprises a dashboard-mounted gauge and an engine-mounted sensor, which also informs the fuel and emissions systems. If overheating is indicated, check the coolant level and sensor operation. A defective sensor should be replaced. If the sensor is functional, the temperature gauge should be assessed by a dealer using a scan tool, as the onboard computer processes the data.

The coolant temperature indicator system includes a gauge and a sensor, the gauge is mounted in the instrument panel and the sensor is mounted on the engine block. Test the circuit by grounding the wire to the sensor with the ignition on and if the gauge responds, it's fine; if not, check the wiring circuit. To replace the sensor, unscrew it from the engine and quickly replace it with a new one using a sealant and check the coolant level after installing the new sensor.

Drain the cooling system below the ECT sensor level. Disconnect the electrical connector from the ECT sensor. Unscrew and remove the ECT sensor. If you're installing the old sensor, wrap the threads of the new ECT sensor with Teflon tape and the threads of the new sensor should already be coated with sealant. Installation is the reverse of removal. Be sure to tighten the ECT sensor to the torque specifications. Refill the cooling system.

The coolant temperature indicator system comprises a dashboard-mounted gauge and an engine-mounted sensor, which also informs the fuel and emissions systems. If overheating is indicated, check the coolant level and sensor operation. A defective sensor should be replaced. If the sensor is functional, the temperature gauge should be assessed by a dealer using a scan tool, as the onboard computer processes the data.

The coolant temperature indicator system includes a warning light or temperature gauge on the dashboard and a coolant temperature sending unit on the engine and in some models, the Engine Coolant Temperature (ECT) sensor also functions as the coolant temperature sending unit. Also, check the coolant level and ensure that all connectors are secured, and check the coolant as it may not activate the sending unit.

To remove the engine coolant temperature (ECT) sensor, start by removing the engine cover. Disconnect the electrical connector from the ECT sensor, which is located at the front of the engine on the side of the engine block for 3.0L and 3.6L V6 models, and below the exhaust manifold towards the end of the engine for 2.4L four-cylinder models. Also, apply some sealant to the threads and reinstall the engine cover.

The coolant temperature system includes a dashboard warning light or gauge, and an engine coolant temperature (ECT) sensor. It also works as the coolant temperature-sending unit for the Powertrain Control Module (PCM). If overheating is indicated, check the coolant level and wiring harness connectors. When the ignition is turned to START, the light should come on, showing the bulb works. If it doesn't, the bulb may be burned out, the ignition switch faulty, or the circuit open. When turning on the engine, the light should go off; if not, the engine is overheating. If it stays on, there could be a grounded wire, a defective sending unit, or a faulty ignition switch. Also, check the coolant mix, as high water content may not activate the sending unit.

Remove the engine cover and drain the engine coolant; however, it is possible to replace the sensor without draining the coolant, though some coolant may leak from the crossover when the ECT sensor is removed, so install the new sensor quickly. For four-cylinder models, the ECT sensor is located at the rear of the engine near the transaxle end at the thermostat housing, so disconnect the electrical connector from the ECT sensor. In 2002 and 2003 (3.0L) V6 models, the ECT sensor is found on the coolant crossover at the left end of the engine between the cylinder heads; remove the battery, take off the cover from the fuse block, disconnect the power steering wire and the positive battery cable from the B+ terminal, disconnect all harnesses from the battery cooling box, loosen the fuse block connector mounting bolts, move the fuse block from its retainer, disconnect the wiring harness supplying the front lights, and remove the battery cooling box before disconnecting the electrical connector from the ECT sensor. For 2004 and later (3.5L) V6 models, the ECT sensor is mounted at the left side of the front cylinder head next to the thermostat housing, so disconnect the electrical connector from the ECT sensor. Unscrew the ECT sensor with a wrench, taking care to handle it gently if planning to reuse it, as damage will affect the PGM-FI system's operation. When installing the ECT sensor, apply sealant to the threads if it does not use an O-ring, and always remove and discard the old O-ring, installing a new one regardless of whether the old sensor is reused or a new one is installed. Finally, installation is the reverse of removal, ensuring the ECT sensor is tightened, and refill the cooling system or check the coolant level if it was not drained, adding as necessary.

On four-cylinder models the ECT sensor is mounted on the thermostat housing in the left rear corner of the cylinder head. Start by pulling off the radiator cap and then using water pump to 'pull a vacuum' on the cooling system, to get the level below that of the ECT sensor. Pull off the electrical connector of the ECT sensor and then using a deep socket, extension and ratchet, unscrew and pull out the ECT sensor. When it is time to install the new sensor, ensure that the threads are coated with Teflon tape so that they do not leak. After that the installation process is vice versa as the removal process and make sure that the sensor is tightened to the next torque value. Last of all, add in the refrigirant of the cooling system. For 3.5L and 3.9L V6 models, the ECT sensor is located in the right-front area of the engine, right end of the front cylinder head. The process is similar: flush it with antifreeze, pull the electrical connection, pull the sensor from its casing and remove it, thread the new one with teflon tape, reinstall it and tighten then replace the fluid. On most 3.6L V6 models, the ECT sensor is attached right over the number 4 exhaust port at the front side of the engine. Release the connection of the electrical connector, remove the sensor while dealing with the coolant leakage, if there is any, thread the Teflon tape around the threads and replace the sensor tightly, then check of coolant leakage.

Turn the ignition key to OFF. Drain the cooling system. It's not necessary to fully drain the coolant, but it must be drained to a level that's below the level of the ECT sensor. Disconnect the electrical connector from the ECT sensor, which is located at the right front (passenger's side) corner of the cylinder head on 2.0L supercharged engines, near the valve cover. On 2.2L and 2.4L engines, the sensor is located in the thermostat housing, between the two heater hose pipes. On 2008 and later 2.0L turbocharged engines, the sensor is located at the left rear of the cylinder head (driver's side). You may need to unbolt the under-hood fuse and relay center, moving it aside for access. Unscrew the ECT sensor and remove it. Wrap the threads of the ECT sensor with Teflon tape. Installation is the reverse of removal. Be sure to tighten the ECT sensor to the torque specifications. Refill the cooling system when you're done.

For 4-cylinder models the first step is to make the engine off by turning the ignition key while on the other extreme, make the cooling system of the car below the level of the ECT sensor. That being the case, remove a seven pin electrical connector at the lower left corner on the cylinder head thermostat housing side which belongs to the ECT sensor. Utilize a deep socket, a six-inch extension and ratchet to unscrew then take out the ECT sensor. Before proceeding with the installation of the new sensor, cover the threads of the new part with Teflon tape to avoid leakage, afterward, using the process reversed from that of their removal; must ensure that the new sensor has been tightened to the appropriate torque. Last of all, refilling of the cooling system. For V6 models, turn the ignition key to 'OFF' then loosen the drain plug for the cooling system and make the system to go below the level of the ECT sensor. Disengage the ECT sensor of the connector on the left end of the engine, close to the cylinder heads, and the coolant crossover pipe, unscrew the sensor and take it off. The new ECT sensor threads should be wrapped with Teflon tape before installation; the process is the reverse of the removal process, and it should be tightened to the required torque. Some of them include: Replace the water pump, replace the thermostat, refill the cooling system upon completion.

The Engine Coolant Temperature (ECT) sensor serves as both an information sensor for the Powertrain Control Module (PCM) and a coolant temperature sending unit for the temperature gauge.

Wrap the threads of the new sensor with Teflon tape to prevent leakage and thread corrosion.

Drain the cooling system below the level of the sensor.

In some vehicle models, the Engine Coolant Temperature (ECT) sensor serves as both an information sensor for the Powertrain Control Module (PCM) and as the coolant temperature sending unit for the temperature gauge.

The electrical connector for 2.4L four-cylinder models is located below the exhaust manifold towards the end of the engine.

To remove the ECT sensor, start by turning the ignition key to OFF and draining the cooling system to a level below the sensor.

The coolant temperature indicator system consists of a temperature gauge on the dash and a sensor mounted on the engine.

The second ECT sensor is located in the side of the radiator tank.

The coolant temperature indicator system consists of a temperature gauge on the dashboard and a coolant temperature sensor on the engine.

The coolant temperature indicator system consists of a temperature gauge or warning light on the dashboard and a coolant temperature sensor on the engine.

If the coolant temperature sensor is found to be defective, it should be replaced.

The ECT sensor is a thermistor, a resistor that changes its resistance value based on temperature changes.

After installing the sensor, you should refill the cooling system.

After installing the sensor, you should refill the cooling system.

The electrical connector for 3.0L and 3.6L V6 models is located at the front of the engine on the side of the engine block.

THERE IS NON

P # 12608814 ( SENSOR ) WILL NOT COME WITHT HE MATING CONNECTOR