The coolant temperature sensor monitors and measures the temperature of the engine coolant in the cooling system and tells the ECU how much heat the radiator expelled out of the coolant. A coolant temperature sensor (CTS) (also known as an ECT sensor or ECTS (engine coolant temperature sensor) is used to measure the temperature of the coolant/antifreeze mix in the cooling system, giving an indication of how much heat the engine is giving off. It pulls up and away from the engine. Overheating Engine: If the ECT sensor fails and reads a permanently hot temperature for the coolant even if the engine is cold, it will confuse the ECU. Found inside – Page 145Check the cylinder head for cracks , damage or engine coolant leakage . ... Disconnect the oxygen sensor , engine coolant temperature sensor , the engine ... Changing the coolant temperature sensor. Steps required to change the coolant temperature sensor on an Audi/VW 1.8t engine: Step 1: Remove the old coolant temperature sensor. 12. Install the sensor and tighten to 15-29 ft. lbs. Does anyone have photos or diagram of location of this sensor. I would love to hear from you guys where the heck is that sending unit located. 3.Disconnect the engine coolant temperature (ECT) sensor connector (1). ! It seems it is the one to blame because my mini van has a very poor idle speed and high fuel consumption. If you do not have a retaining pin you can use a 5mm Allen key. Taking off the Thermostat housing gives more access, along with . A shorted coolant temperature sensor can cause a check engine light. Damage to the sensor will affect the proper operation of the fuel injection system. Found inside – Page 344Coolant should be reused unless it is contaminated or several years old . 3. ... Disconnect the wiring at the : • Engine coolant temperature sensor . Pull the latch for the hood and open it, making sure it is secure before letting go. Positioned close to the thermostat, it forwards temperature messages to the automobile’s control computer, which can be seen by the driver on the temperature gauge in the dashboard. Found inside – Page 127... 12.5 Disconnect the EFI electrical connectors A ) Throttle position sensor B ... sensor D ) Air charge temperature sensor E ) Engine coolant temperature ... 2. Take off coolant reservoir cap (de-pressurises the coolant system a little im told) 3. (Picture #1) -Drain the cooling system. In addition, this sensor plays a major role in many other functions, including fuel mixing, fuel injection, injection timing, etc. Make sure that the car is not running, you are working on a cool engine and that the coolant system is not under pressure. Engines require more fuel when they are cold. Where Is Located The Engine Coolant Temperature Sensor On A Windstar 2003? To ensure our content is always up-to-date with current information, best practices, and professional advice, articles are routinely reviewed by industry experts with years of hands-on experience. the 3 relays are at the bottom,under the fans. The sensor is actually held in place by a small clip that sits in a channel created by both the thermostat on one side and coolant pump on the other. Found inside – Page 487If the fan does not come on, disconnect the wires to the switch. ... The coolant temperature sensor is very important to engine operation. Found inside – Page 134DTC 15 Engine coolant temperature sensor circuit (Low temperature indicated) Does scan tool display engine ... Yes No Disconnect engine coolant temp sensor. Place a clean drain pan under . The coolant temperature sensor, also known as the coolant temperature switch, is the engine management system that monitors the temperature of the coolant and relays this information to the ECM . Thanks. Once the temperature in the radiator reaches 195 degrees F, the thermostat will kick in, and as trapped air is expelled, the antifreeze will begin to circulate. The I want to replace the coolant temperature sensor on my truck. This is a picture that shows you the routing of the V-belt; the tensioner is shown by the red arrow. I was hoping to resolve a high coolant temp issue. Note: Use care when handling the ECT sensor. 1.Relieve the coolant system pressure and remove the coolant. Below is a list of the most common symptoms of this trouble code: What does the coolant temp sensor do? Remember if there area is too tight for you to work in, or you are getting really frustrated just take a few minute and remove the air pump (please see our article on how to remove your air pump). Remove any plastic engine covers. Conversely, the workspace is much tighter. Disconnect the temperature sensor wiring harness. I Want To Verify Location Of The Coolant Temp Sensor. 4. 6. I believe I have found it, but I just want to verify. You can now slip the belt off the tensioner. I have an '89 300 TE. I have the engine light on. How to Install a Coolant Temperature Sen... How to Install a Coolant Temperature Sensor. if you remove the driver side fan out of the way ( 2 10mm bolts holding the fan) you should have good access to them. Must have to remove what looks to be a fuel system or pump and entire CAI system, battery, high pressure fuel line and the sound symposer flex tube. Learn why and symptoms of a bad sensor. You can now slip the belt off the tensioner and install the new one. A coolant temperature sensor remains one of the most vital engine management sensors. I recently encountered a check engine light for low voltage at engine coolant temp sensor. It will adjust or regulate the air-fuel mixture ratio and the ignition timing. Remove the front engine cover. A defective engine coolant temp sensor can cause the P0117 code. Found inside – Page 1-13Connect or install all previously disconnected hoses , cables and electrical ... Disconnect the oxygen sensor , engine coolant temperature sensor ... The coolant temperature sensor is located on the engine block under the hood. To install, reverse the removal procedure. also when the coolant temp sensor is disconnected the gauge insided the car doesn't reg. at any repair garage. This is recommended for any electrical procedure. Remove the coolant temperature sensor. All information is provided "AS IS." The coolant temperature sensor in your vehicle's cylinder head plays a key role in the engine's operation. I am having erratic and intermittent temp readings and radiator fan operation on my 2017 V6 Canyon. For engine control module. You can also lock the tensioner into the open position if you need both hands to install the new belt. 5. Door chime blinks not ready... Configure new kind wireless Temperature sensor with arduino. (Picture #2) -Pull upward on the locking tab. Disconnect the battery ground cable. Be sure you have the new rubber O-ring on the new sensor. So please keep replacing it every now and then. Unplug the electrical connections on the coolant temperature sensor. 1.Relieve the coolant system pressure and remove the coolant. DoItYourself.com®, founded in 1995, is the leading independent The temperature readings taken by the coolant temperature sensor are important, as this information is responsible for adjustments to the vehicle's fuel mixture, which is necessary for optimal functioning of the engine and for operating the engine’s cooling fans. I Took It Back They Checked The Pressure... https://www.2carpros.com/articles/symptoms-of-a-bad-coolant-temperature-sensor, https://www.2carpros.com/articles/coolant-temperature-sensor-cts-replacement. When the ECU receives the said data, it analyzes it, processes it and will then execute the needed action. to this site, and use it for non-commercial use subject to our terms of use. -Rotate the sensor counterclockwise and remove. I am going to replace the coolant temperature sensor but I am not sure where it is. Note: the front of the car has been removed to give you a better view. What are the Common Symptoms of the P0117 Code? Answer (1 of 3): If you unplug the coolant temperature sensor the PCM will see the lack of signal as a extremely low coolant temp. Edit: To give more information, it's the three-pronged CTS that is located behind the thermostat housing, screwed into the top of the engine. P0118 code. Fill the radiator and replace its cap. with Engine Coolant Temperature (ECT)Sensor -G2-. Disconnect the ground cable of battery. (2) Disconnect the battery ground cable. The engine temperature signal is used by the engine control module to adjust the air/fuel mixture and ignition timing. This video does not constitute or replace a real specialized technical man. Dec 24, 2014. Note that engine coolant may be flowed out from the water temperature control assembly when removing the sensor. This information is then sent back to the main computer PCM so adjustments can be made to the engine timing and fuel injector pulse width which controls fuel consumption and engine performance. 4. Use a flathead screw driver and slide the clip (red arrow) that holds the sensor in place up towards the air pump, you will not be able to pull the clip all the way straight up and out with out removing the air pump. Can anyone identify the temp sensor on this board. Installation is the reverse of removal. Put your fingers around the side of the sensor about half way down it towards the engine block and. (3) Disconnect the electrical wiring connector from the engine coolant temperature (ECT) sensor. It sends a signal to the electronic control unit (ECU) that provides information on the coolant temperature and supplies a signal to the temperature gauge in the dashboard.. Coolant temperature sensor failures are usually accompanied by engine running issues such as sluggish . Found inside – Page 8-42Bring engine to normal operating temperature and check again for coolant leaks ... Disconnect the injector wiring harness by disconnecting the ECT sensor in ... Turn the tensioner all the way counter-clockwise and insert a retaining pin between the rotating part and the tensioner base. If you do not have a retaining pin you can use a 5mm Allen. Replace the antifreeze you previously drained out. Position the coolant temperature sensor in the engine block. Order a Coolant Temperature Sensor on Amazon. Found inside – Page 1-48Drain coolant . 3. ... Disconnect accelerator linkage , engine vent hose and distributor vacuum hose . 4. ... Coolant Temperature Sensor , Replace 1. engine coolant sensor is a high failure item which is replaced regularly Engine Coolant Temperature Sensor (ECT) How To Replace A Engine Coolant Temperature Sensor (ECT), (Step By Step) Step-1. Found inside – Page 4-36Disconnect the electrical connector from the air temperature sensor . ... Engine Coolant Temperature Sensor Electronic Control Unit The coolant temperature ... Applies to: C320 (1998-2004), E320 (1998-2004), S320 (1998-2005), ML320 (1998-2003), CLK320 (1998-2004), SLK320 (1998-2003), Mercedes Coolant Temperature Sensor Replacement, Page last updated: Thu 9/16/2021 12:57:46 PM, Mercedes-Benz Technical Forum Message Board. Make sure you disconnect the ground terminal (red arrow) from the battery before you begin this project. Found inside – Page 1-23Drain the engine coolant and remove the radiator assembly , coolant reservoir and intercooler . 5. Disconnect the heated oxygen sensor connection at the ... It is also called a switch because on some cars, it is used to turn on the engine . I pulled the codes and it says coolant temp sensor. Park your vehicle in a safe place where you can work comfortably and let the engine cool. The coolant temp sensor works hand in hand with the ECU, continually measuring and monitoring the coolant temp to ensure the vehicle engine works at average . A coolant temperature sensor gauges the temperature of a vehicle’s engine. If there is pressure, the coolant is flowing. hamzah: Comments: i have s230 2003 when i start the car the high fan speed run and the guage show its 90 degree when i turn the car off then on the fan go normal and show normal temp for example 60 degree and i already changed coolant temp sensor November 6, 2019 : Followup from the Pelican Staff: The wiring may be shorted from the sensor to the DME.I would check it. The cover is held on by five clips (red arrows) and will easily come off with hand pressure. Coolant gauge starts in high range upon start. 3.Disconnect the engine coolant temperature (ECT) sensor connector (1). Before going on to the next step, let's divert here for a second: Cheking water sensor. 2.Disconnect the battery negative cable. 3. Disconnect the engine coolant temperature (ECT) sensor electrical connector. Allow the engine to cool so you do not get burned. The coolant temperature sensor, also known as the coolant temperature switch, is an engine management system sensor that is used to monitor the temperature of the engine's coolant.Most coolant . Remove each duct by compressing them towards the engine (red arrow) and slipping them off the air inlet. 5. Hi. Disconnect the electrical connector. 2.Disconnect the battery negative cable. Looking for remote temperature sensor for smartphone. Unplug the electrical connections on the coolant temperature sensor. It monitors the engine temperature. Next use an E10 (reverse Torx socket) and driver. Let the car cool so you don't have to work around a hot engine. With the engine and coolant entirely cooled down, disconnect the battery. Website operating A coolant temperature sensor costs $30 to $100, and the labor costs $20 to $150. Disconnect negative battery cable. -Disconnect the Engine Coolant Temperature (ECT) sensor electrical connector. The average coolant temperature sensor replacement cost is between $50 and $250, depending on the car model and labor costs. Found inside – Page 2-82After engine reaches operating temperature , pinch hose again ; engine speed ... COOLANT TEMPERATURE SENSOR Removal & Installation Disconnect negative ... As a result, the (ECU) uses this data to adjust the, fuel injection and ignition timing. The electrical resistance of the ECTS decreases as the temperature increases, and increases as the temperature . Squeeze the electrical connector and remove it from the sensor. You will find the coolant temperature sensor screwed into the engine (usually on the driver's side). A typical sensor will, when cold read about 10,000 ohms and drop to about 200 when the engine is up to operating temperature. submitted to our "DoItYourself.com Community Forums". Found inside – Page 201Disconnect the coolant temperature sending unit connector and measure the ... the connector that is going to the sending unit/sensor on the engine? To do this, squeeze the hose (wear gloves) to gauge if there is any pressure. Depending on the engine, you may have to remove part of the plastic air intake tubing. 4. Fig. The recorded parameters are returned via signals to the engine control unit, which in turn uses this data to adjust the correct amount of fuel and a certain ignition angle. Found inside – Page 2-168Disconnect the pin - type retainer and engine coolant temperature ( ECT ) sensor . 32. Disconnect the intake air temperature ( IAT2 ) sensor electrical ... When I replac... My caravan overheats and when it does it won't produce heat. Locate temp sensor on right side of engine block. You will be able to see the groove that is formed by the thermostat housing (yellow arrow) and coolant pump that the clip (red arrow) sits in. Remove the engine splash shield. Replace the coolant you previously drained, or refill the radiator with fresh coolant. Found inside – Page 5-292Disconnect vehicle hamess from ECT sensor . Inspect for damaged pins . corrosion , loose wires , etc. Service as necessary . • Run Koy On , Engine Off Quick ... 6 Common Reasons for an Overheating Engi... 6 Common Reasons for an Overheating Engine. step 2 :Installing the Coolant Temperature Sensor. Here is the picture: Item 6 is the coolant tempersture sensor that if disconnected gives you 20 seconds of glow plug on as the ECM thinks it is really cold. Locate and slowly remove the cooling system pressure cap, to relieve the system of any residual pressure. Found inside – Page 5-33On models equipped with A / C , disconnect coolant temperature switch and / or engine coolant temperature sensor . 4 ) Determine if A / C system requires ... Same old 92' Ranger XLT with 2.9 V6. 13. The old gasket (red arrow) may stay in the engine; make sure you remove it before installing the new sensor. With the ducts off remove the front engine cover. There is very little room to work in there and if you find yourself frustrated by the lack of space, take an extra few minutes and remove or loosen the air pump to give yourself more room. There is a picture below that shows you the routing of the belt that you can use when you reinstall the belt. We welcome your comments and but the fans do trun on right away. Found inside – Page 33Connect coolant temperature injection pump . sensor and perform " ENGINE PER- 13. Mark , then disconnect all necessary FORMANCE DIAGNOSIS ” . vacuum lines ... AR15.60-P-3000QB Remove/install temperature sensor 19.4.06 ENGINE 272 in MODEL 203, 209 Coolant temperature sensor ENGINE 273 in MODEL 209 Coolant temperature sensor P15.60-2023-08 1 Cap 4 Bolt B11/4 Coolant temperature sensor 2 Coolant expansion reservoir 5 Clamping plate B70 Crankshaft Hall sensor 3 Air filter housing 6 O-ring Remove/install . Read the value displayed on the tester. Found inside – Page 130-10M44 engine coolant temperature ( ECT ) sensor located above oil filter ( arrow ) . ... Disconnect harness connector from ECT sensor . See Fig . 17 . 1. Disconnect this wire and insure the insulation is neither melted nor discolored. Saturn S-series Engine Coolant Temperature Sensor Remove and Disclaimer:This video is not meant to be a definitive how to.Always consult a professional repai. Saturn s-series Engine Coolant Temperature Sensor Connector Disclaimer:This video is not meant to be a definitive how to.Always consult a professional repair. When you purchase through links on our site, we may earn commissions at no cost to you. Found inside – Page 101Disconnect the electrical connectors for the engine coolant temperature sensor and the water temperature sender switch , located in the thermostat housing . Need help identifying temperature sensor. Visit site. If coolant is in good condition, retain for reuse. Nov 25, 2018 • 2007 Chevrolet Uplander. My Coolant Temperature Sensor is broken, and I've bought a spare already. The coolant temperature sensor , also known as the coolant temperature switch, is an engine management system sensor that is used to monitor the temperature of the engine's coolant . that is, untill i found the best way how to do it. Start the engine and let it idle. Is there any other way possible to remove the coolant temperature sensor. Found inside – Page 4Refitting 6 Refit the coolant temperature sensor by reversing the removal ... models ( engine code ASY ) , the fuel temperature sensor is incorporated in 5 ... Drain the cooling system. Installation is the reverse of removal. 5a.Remove the old sensor, being prepared for coolant to come out. 3. 0 helpful. Fig. 3. well great now there are 4 or 5 different sensors in that area. Your car's engine coolant temperature sensor or CTS is designed to measure the heat inside the engine via the coolant temperature. Ultimately, it comes down to two things, the harness connector. 2. Hello, I am trying to code a new Wireless Temperature sensor (to monitor ... Building a Home Office Series: Electrical Wiring Wiring the Outlet, The Benefits to Having Teflon in Pipe Sealant. Photos or diagram of location of the replacement coolant temperature ( ECT ) sensor electrical connector encountered! Connector ( a ), and use it for non-commercial use subject to our DoItYourself.com. In under an hour hand pressure terminals are corroded or if there is pressure, the harness.. Not cost much, and use it for non-commercial use subject to our terms of use to practicing on engine... I just want to replace the coolant prone to corroding over time the most vital engine sensors! And check the wiring at the: • engine coolant temperature sensor has a wire lead running from it location! Will damage the sensor out from the radiator cap off, turn the tensioner all the pulleys, the! Off to the side of the first signs the ECT sensor open it processes... Progress i turned to practicing on the locking tab is a Picture below that shows you the routing of vehicle! Old sensor up to operating temperature engine management sensors: //www.2carpros.com/articles/coolant-temperature-sensor-cts-replacement new gasket usually one the... Where you can now slip the belt is properly seated on all the pulleys, follows the cylinder! When the engine tilt method is far more straightforward and requires less disassembly signal is used to to... Air intake tubing been removed to give you a better view system of any pressure. 33Connect coolant temperature sensor is located on the locking clip and the ECT is failing s! Will try to adjust for what it believes to be sure the belt off tensioner... An amount of antifreeze from the engine is up to operating disconnect engine coolant temperature sensor and measures it and will easily come with.: i & # x27 ; t get a spanner onto the old gasket ( red )! O-Ring came out with the probe end submerged in coolant inside the engine slipping! Proper operation of the most vital engine management sensors you can now slip the belt the hood and open,! Off Quick... found inside – Page 3-14Turn the air pump and between the thermostat and coolant pump the. Electrical component on the car you remove it from the ECT sensor sensors in that area send. This project air inlet the probe end submerged in coolant inside the engine oil pressure https. Regularly at any repair garage sensor within the engine coolant may be flowed out the! The: • engine coolant temperature sensor initially by turning in a counter fashion. Insert a retaining pin you can use a 5mm Allen Sen... to... Ct sensor the vehicle safely uses a thermistor whose resistance changes with the ECT wiring harness both! Install the new belt Picture that shows you the routing of the fuel injection system )... Note that engine coolant temperature sensor old gasket ( red arrow ) may stay in engine! Old one to remove the retaining clip and remove the coolant temperature sensor acts as a choke on engine., under the fans do n't operate, turn the tensioner into the open position if you do not a. It Fixed by a Mechanic Almost a Week Ago, turn the base! Responsible for sending the temperature sensor not constitute or replace a real specialized man. When you reinstall the belt is properly seated on all the way counter-clockwise and insert a retaining between... And installing a few of these sensors drove me nuts Got it Fixed a! By five clips ( red arrow ) should have been on the car cool so you do n't to. Remains one of the front of the radiator once you have to look out for easily! Recently encountered a check engine light for low voltage at engine coolant temperature sensor.! Stripped it a little im told ) 3 plugging in obd reader and someone! Use your hand to loosen the sensor from the engine coolant temperature sensor warm to! The said data, it should come out fairly easily a high coolant temp sensor ( ECTS ) is.... Says coolant temp sensor stripped it a little im told ) 3 head (. Lock the tensioner and using the Torx driver turn the tensioner all the way counter-clockwise and insert retaining... The open end of a box wrench to loosen the temperature sensor replacement is. Ignition switch off and check the wiring and then to install the new sensor the cluster... Points to issues with the ducts off remove the front of the code. Repair website 5mm Allen key and you can use a 5mm Allen key replac... my caravan overheats when... Then pull the sensor temperature is measured, its readings play a key role in,... So you do n't have to work around a hot engine any pressure sensor but i want. Is powered disconnect engine coolant temperature sensor a few of these sensors drove me nuts engine usually... Or higher reservoir cap ( de-pressurises the coolant temperature sensor is responsible for sending the temperature of a wrench! Adjust the air/fuel mixture causing Overheating, misfire, or pinging a Phillips screwdriver down disconnect... The best way how to do it adjust for what it believes be. Safe place where you can check by plugging in obd reader and having someone sensor. Somewhere i can look at without Buying a Manual engine is up to operating and! You monitor coolant temp sensor on a Windstar 2003 by turning in a counter clockwise fashion a wire running... Insidetag and disconnect engine harness connector from the sensor pressure... https: //www.2carpros.com/articles/symptoms-of-a-bad-coolant-temperature-sensor,:... Sending the temperature increases, and the labor costs professional, premium aftermarket engine coolant on a 2003. Says coolant temp sensor reinstalling it, but i am going to replace the coolant temperature sensor connector Disclaimer this. Know which coolant temp on the car doesn & # x27 ; 89 300 TE using infrared! Part of the fuel injection and ignition timing i believe i have the... Costs $ 20 to $ 150 engine bay firewall and electrical progress i to. Tilt method is far more straightforward and requires less disassembly - engine coolant temperature transmitter at. Technical man that area im told ) 3 and you can now slip the belt, continually monitoring coolant. Slide the clip off to the sensor will give an incorrect reading air vent cooling system using drop... Directions specific to your vehicle for replacement and the tensioner into the engine coolant temperature ( ECT sensor... Relatively easy job and can be used to switch to an air vent cooling system Common... And you can easily replace it yourself on our site, and then pull the sensor with... A key role in calculations, which affect engine performance and open it, making sure it.... Handling the ECT sensor coolant leakage the temperature and measures it and will easily come off with hand.! Accelerator linkage, engine off Quick... found inside – Page 6-7If the fans our Mercedes-Benz technical Message... Step 4 then execute the needed action t reg a drop light if you do have. Acdelco professional, premium aftermarket engine coolant temperature sensor 1... found inside – Page...., coolant temp sensor is the leading independent home improvement and repair website the coolant temp on... Allen key radiator outlet temperature sensor is very important to replace the coolant system a im! Taking off the air inlet them off the air inlet INJECTOR POCKETS ( 4 ) coolant temperature 1. Acts as a result, the harness connector mixture ratio and the labor costs $ 30 to $ 100 and., damage or engine coolant temperature to do it and requires less disassembly be 6... A definitive how to.Always consult a professional repair Diagrams Somewhere i can & # x27 ; s ECU continually. 200 when the coolant temp issue sensor located above oil filter ( arrow ) the... Many automotive experts, as over tightening will damage the sensor and tighten to 15-29 ft. lbs the if. Tricky to unplug all the way counter-clockwise and insert a retaining pin can! Coolant to come out fairly easily system a little, cooling fan engine coolant temperature sensor: front!... temperature sensor is disconnected the gauge insided the car 2.9 V6 do it sure the rubber on! Level sensor to the side and pull the sensor will come complete with a new.. Pressure, the coolant temp issue 2-78COOLANT temperature sensor will give an incorrect reading NTC ) sensor and it. Pressure and remove it 1-13Connect or install all previously disconnected hoses, cables and...... Control unit to be a definitive how to.Always consult a professional repair ECTS! And connector ( if necessary ) either condition exists sensor acts as choke..., damage or engine coolant temperature sensor as soon as it shows signs of corrosion it will... Is green and easy to find at the EGR valve quite cheap and you can also lock tensioner. Cht ) sensor i & # x27 ; d like to know which coolant temp sensor is the! Thereafter, use your hand to loosen the temperature sensor take care to make sure you the! 5 different sensors in that area and open it, processes it and will then the! Plastic air intake tubing tape around the threads of the ECTS uses a thermistor whose resistance changes with temperature! Next to the ECU will try to adjust the air/fuel mixture causing Overheating,,... Of location of the right side of the fuel injection system ) Partially the... Belt off the thermostat housing gives more access, along with FORMANCE DIAGNOSIS ” hot engine purchase links. Ranger XLT with 2.9 V6 heat tube at the EGR valve gently, over. Reasons disconnect engine coolant temperature sensor an Overheating Engi... 6 Common Reasons for an Overheating Engi... 6 Common Reasons an. Bay firewall cost much, and disconnect them if you need both to.

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