Most Common Symptoms of Bad Engine Coolant Temperature Sensor | Signs of failing ECT sensor

If you found this video and have a 2016 ford fiesta S/ SE the sensor does not need to be wrenched out. There is a retaining pin you pull out with pliers and then pull the sensor after that. the sensor will just free spin if you wrench it on that model. thanks for the video it was very helpfull.

As below ,this is awsome info,same symtoms as my Chev. pickup. The one sensor I did not replace on my 31 year old truck . Thank you so much.

Got a code a couple of months ago to change the sensor and I honestly forgot all about it. Now my car has a few more codes which indicates most of the other symptoms mentioned in this video. I have the sensor at home and will be changing it today right after work. Thank goodness to the YouTube algorithm Gods for giving me this video to watch HAHA! Never seen this channel before, will most definitely be subscribing, great content!

Thanks for the good explanation

This is awesome! Thank you so much you have just helped me find my issue

Hello, my car is a fiat bravo 2 2008 1.6 multijet diesel. Since I have it from the last summer the car does not have a stable idle. In the winter that problem was gone. This summer it is here again. I tried a lot of things but nothing is helping. Now I have error codes P01EA and P0487(for EGR). P01EA looks like very generic code but it looks like the ones for engine coolant problems. So I am thinking is it possible for a faulty coolant temperature sensor to cause an unstable idle when the car is warming and hot? For example, maybe the coolant temperature sensor is sending wrong information to the ECU that the car is still cold and the ECU is pushing the wrong air-fuel mixture as if the car is cold? Thanks in advance!

Another Great video

Thank you for the video 😊 I just started having problems with my fan not working. Hopefully this sensor is what I need

The coolant sensor was changed before. My scan tool says that it is runnubg a few degrees over normal temp! I pulled all the plugs today to find that engine oil waspushing up into the plugs. Two plugs had a lot of oil on them. I cleaned them and re installed them. Nexdt week I will remove onlt those two plugs to see if they are wet with oil. If so, the seal gasket must be broken under the cover. In that case I would need to replace that gasket that prevents engine oil from spashing up onto the plugs. Anyways thanks. The ECT sensor was replaced some time ago with a OEM part. Maybe it is still bad!

I am not sure were the othervtemp sensor is. I will try changing the coolent sensor first. Having a good scan tool may help! Thanks for the update!

Excellent explanation, I hope you get viewers. Thank You. I have a problem with my car, Fan on when engine cold. Also, Ignition ON, No check engine light. No start condition.

Dear sir/viewers My ECOSPORT diesel 2018 for which i wanted to flush coolant of it 4 days ago when i put radiator flush in it and start the heater in this summer season as per instructions on bottle kept it on idle the car temperature is starting to drop significantly from 50% operating temperature to 25% what could the problem here as my car temperature stays optimal when i run on ac and fan also works properly but on heater it got dropped to 25% so i feared and turned off the engine. Please tell me what could be the problem here does it have bad thermostat,water pump or any other problem? Please reply Thank you.

I took my 2010 Camry to the Toyota dealer and they diagnosed my cooling sensor to be the issue of my temperature gauge going so high almost one line before it hits red, the temperature gauge kept going up and down and was never down to C anymore when my car was home all night before going to work!

Very good informative video. Thanks for sharing. Helped to cover the thermostat part.  i have 2010 ML550, ans got P0128 code, just wanted to know if i should check coolant sensor before going for coolant thermostat?/where exactly this sensor is located? If i can have a diagram or picture to locate it so that i can replace it. Appreciate your help!"

caballero 231 v6 1981 3.8 litre choke light stays on... what is the normal temperature

I have temperature warning flashing, or staying on a while, but it is intermittent. I have P0117 code. not the other. smooth idling, no smoke, normal fuel consumption. thanks.

You just got an new subscriber. 😎

Thankyou!

87 toyota pickup 22r changed the entire cooling system and still wants to run hot. Could it be a temp sensor?

Right on the note