SYMPTOMS OF A BAD COOLANT TEMP SENSOR

[@easyautofix]

Thank you for watching! 🔥OBD2 Scanner: amzn.to/3PHRplS Check out AllDatadiy repair manuals: www.gopjn.com/t/SENKTklLS01DSE1NS0lOQ0dKRk9LTw Use code AD10VA for 15% off one-year subscriptions for any US Order Check out my merch: easyautofix.creator-spring.com/ Have car-related questions? Check out JustAnswer! They have verified auto mechanics that are available as live help 24/7: justanswer.9pctbx.net/qnj74y Buy a new ECT sensor here: advanceautoparts.rt8x.net/ZdA2XR Here are some of my favorite items that you might like: Tools: amzn.to/3xNDb8g Car Vacuum: amzn.to/3EjhPSJ Cleaning Tools: amzn.to/3El7dCG Water Repellency Wiper Blade: amzn.to/3utvK50 Cleaning Gel For Cars: amzn.to/36NIiMr Portable Air Pump for Car Tires: amzn.to/3uBuPzA Headlight Restoration Kit: amzn.to/3qDpOVH Amp Jump Starter: amzn.to/3pMd0vx

[@loumenard2285]

To the point. no extra talking. Thanks

[@d-lowz-no9931]

On older cars it can cause a no start too. My 94 bronco with minimal tech relies on the signal to calculate fuel ratio for operation. If it’s bad and reading too cold, it’ll flood the engine with fuel and if it’s the opposite, it’ll starve the engine of fuel which pretty much cuts the pulse to nothing and there’s nothing to ignite and make it run. Keep that in mind 👌🏽

[@patrickharvey158]

This makes so much sense

[@1uZed_]

wondering if this is why my 97' LS400 wont run

[@benperez8424]

So i rebuilt my 86 5.0 efi and been chasing tail changing every sensor/controller/switch,hopefully its this

[@anthonyklanke1397]

Awesome! Maybe this has been my problem the whole time :) my car will only start in cold weather, so maybe the temp sensor is reading too hot on normal days and not giving enough fuel!

[@johnames4223]

Sat 3/4/24 almost 8 pm My 03 dodge ram 5.7 liter temp gage goes to HOT rather quickly and no sign of leaks and engine does not seem to run any different than normal.

[@bnuyguy123]

play on 1.25x speed for normal speaking

[@mrfxr1695]

Thanks

[@dhalsim-1]

Play at 0.25x for ultra stoned hippy

[@mrfxr1695]

😂😅​@@dhalsim-1

[@kcollins1996]

Bro 😂

[@gmballistic506]

Thanks. Legend. 👍

[@jeffersonsteiner3965]

The key is to keep your cool!

[@easyautofix]

Smart!

[@jonathancristobal4724]

I’m always on chill

[@BluFam903]

Aman Fam lol

[@GrizzlyHillsRadio]

I see what you did there.

[@galapagosbusinesses.8859]

😁👍👍👍Jefferson...I know who you are..you live down the block from me..Hey , commenting on these videos is cool and all but..WHERES my 20 bucks i lent you???

[@phrtao]

Very helpful. I have 2 of the symptoms (Black smoke and error codes) but the car seems to run pretty much Ok when it reaches operating temperature. The garage is going to change the sensor anyway.

[@johnnylawson3825]

How much did it cost to replace

[@knivninja3896]

Appreciate it bro! You saved us from getting scammed by a mechanic shop

[@zoenayru]

Thing is - most people go there just because they lack the energy to deal with the issue - I get it if it’s something like blown piston - but for something as small as this - grab a code reader and replace parts - the internet is already giving you all the information

[@zoenayru]

Glad you saved the money by taking the time on your car

[@staciehahn9175]

Holy smokes- you literally saved us $2500 on a head gasket job. Our mechanic wanted to throw a new engine in it! Whew!! THANK YOU!!

[@aw3157]

​@@staciehahn9175Hello what was the symptoms u were having that the mechanic thought was a head gasket

[@thomastownsend259]

5/5 stars ! Quick, concise and easy to check 🎉 Thanks for all your help.

[@easyautofix]

and thank you!

[@truckinedchannel9982]

Would a bad sensor cause the engine to labor ping? Doesn't do it when engine is cold. Gauge doesn't show it getting hot

[@DragonRoyZ]

Hi, I used to have a bad engine noise. But when I changed the old corroded coolant temp sensor, the noise was gone for about 2 months. It was a temporary sensor, as it was purchased like 3 bucks. I plan to replace it as the noise is starting to come back.

[@gridiron2112]

Thanks Brad! Same thing happened to our Yukon. I actually Broke the clip so now have to figure out that repair.

[@andrenelson8634]

Theres Some Adhesive for that situation.... Explain it to the Cashier at the Auto store

[@Rs817t]

Thanks man you have saved me a lot on a couple of my cars 😂

[@Sunsetchaser365]

I love your videos!!!! You are a great teacher!!! Thanks for all you do👍🏻

[@Ajabee630]

Great job I hate when the mention of bad idle is not brought to diy ppls attention

[@mikeyg923]

Yo man me and my '96 Civic thank you for all this info 👏🏼

[@fernandoguardia3379]

You forgot to include (as for me is a major sign of issues with said sensor as it has happened twice on different vehicles from different brands) that another and very noticeable symptom is that the vehicle's engine stalls (lightly but noticeably) during acceleration at certain RPM levels when the engine is still cold (like in the mornings), as if the engine being almost out of fuel or having an electrical issue, this disappears once the engine has reached its normal operating temperature but is constant and does not go away (despite no ck might be seen dash-wise or through a scan) until the unit has been replaced...

[@Dankcatvacs]

yup happened to me with my 92 subaru loyale , also with a bad tps will do that

[@codykemler4361]

Is it possible for it to have the opposite symptoms if it's reading your car is too hot when it's not causing the fans to stay on always and the gauge to read higher?

[@codykemler4361]

@Makula-px8fr I sold it to my brother and he fixed it I think it was the thermostat

[@keithroberts8523]

Would it also cause a/c not to come on ? And gauge not to work ?

[@venomdealer790]

Beautifully explained....

[@Mike_The_Hog_A_Nator]

I have an 02' Blazer ZR2. Mine is reading spot on when I look with my scan tool but my gauge is off.. The gauge was just reading correctly a few months ago. The coolant sensor is only a year old. The scan tool shows 197° to 195° & my dash gauge shows 210°. It's running fine & getting sticker mileage at 16mpg in town, which is what the 02' sticker shows.

[@andyl9920]

Need help please. I got a P0128 code for bad thermostat. I replaced it. The check engine light went off assuming because i took off the battery cable while doing the replacment. The light came back on 2 weeks later. Scanned the code and got the same P0128 code. Do i just need to delete it using the OBD2 scanner? No overheat, no leaks, temp is normal and good. Any suggestions? A buddy of mine said it could be bad coolant temp sensor but i didnt get the codes u provided in the video.

[@danielbrien1776]

Thanks! You informed me about new things today!

[@dbgetsblocks9713]

Hopefully this helps me but this was a great video forsure

[@pedrogadea4926]

can a bad ECT sensor wrongly read a temp way higher than reality and cause the engine to shut off?

[@ElPadrino610]

Yes

[@lastman6426]

How?

[@dhalsim-1]

If it reads hotter than it actually is, not only will the gauge reading be too high but it will also reduce fuel potentially stalling the car and preventing warm starts.

[@roltyd22]

Will the sender have anything to do with the fans coming on late? Not the sensor

[@Brownguy504]

Good vedio had ever problem except over heating. Need to get a new sencer asap

[@ricardovillanueva1051]

Thanks had some doubts

[@someone7773]

Does this also make it difficult to use the AC?

[@alirazmjou2149]

Thank you so much for this video متشکرم

[@keithmahler4236]

I got a 2019 fusion 2.5 changed the temp sensor reset the check engine light was doing fine for last 3 weeks now it's back on but not overheating or anything Has ran fine the whole time even before I changed it out just temp sensor and check engine on light temps right in the middle on temp any suggestions thanks

[@marylamb6063]

Would a check engine light always come on?

[@danielguerrieri2023]

No. 2001 GMC Safari btw

[@ProdByKeys]

NO!!!! not always!! great question

[@faidbaksh8481]

My sensors reads… but when I drive the temperature gage drops. There is no help on KZbin for this! 😢

[@johntrovy5528]

Very good informative video. Thanks for sharing. Helped to cover the thermostat part. i have 2010 ML550, just wanted to know 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!"

[@elmexicanodelnorte5333]

He siad fallow the bottom radiator line that goes to the engine

[@stoussait]

Great info!

[@swaggakid00010]

Thank you Jeevesus

[@mosconioni4523]

Would a bad sensor Not trigger an engine light and Not cause rich fuel, or bad gas mileage.. Only problem is radiator fans don't come on when engine is hot, only when a/c is on low speed kicks on

[@OGSHAKER2020]

Hey bud u ever figure out that problem? 🤔 mines doing the same thing as soon as I turn the blower switch to high & hit the recycle air in cabin button it kicks on.. then I can turn it off & it still stays on ..till I turn car off... but sounds like the same problem 😕 🙄 🤔. Lemme know thx man

[@SpyC8779]

Would this cause an engine to not start ? My truck only starts when it's hot outside

[@abdulsani3502]

Same problem with me..when is hot day start normally..

[@benderprofessionalservices9018]

What should the temp be in a 5.3 Vortec engine. Have 2013 suburban tku

[@Grubkiller]

Bro, I just changed the Thermostat, and Engine coolant temperature on my 2015 Grand Cherokee. The dealer says it's normal for the gauge to not be in the middle since it's old. I am like WTH? it's eating up fuel like crazy and no hot air coming out.. any other clues as to what it might be?

[@docloco86]

Sounds like water pump

[@Arizona_rider]

Don’t throw parts at it check head gasket first thing. Diagnose first

[@RIPdBOON]

What if i have the p0115 code, but the car is still running good? No symptoms you mentioned just the code?

[@oralwayne7273]

What about water would it operate the same with regular water ?

[@jbobdavis1984]

So what is the issue if my engine runs cool unless I hit 45 to 75 mph with the AC turned off. which at that point the temp gauge runs slightly above the middle of the gauge. If I'm driving around town, I can run ac for about 30 mins, then I Have to switch to vent to keep the temperature gauge below half way. During winter, My temp gauge shows I'm running way too cold. I can't even get up to operating temp in the winter months. During summer if I'm driving without the AC on and not driving on the highway with vent and heat on my engine runs very cool. 😅. Is it my temp sensor ,or do I need to replace radiator, condenser? My coolant fan is mechanical. I have a heater core leak. Because of the heater core leak, I bypassed heater core for summer months. No check engine light. ???

[@AngelFlores-rh3ef]

Would it make my car say the coolant level is low even tho it's full?

[@Buckseed]

In the ford ranger, this same looking sensor is the sending unit to the cluster guage temp meter. The sensor is conical and also by the thermostat.

[@brettwilson359]

Not every car turns on the fan at 200°, most turn it on around 170-195°

[@Ricatonniisasavage8854]

My vehicle starts fine, like literally starts right up cold, but after I run it for say 30 mins and shut the vehicle off, then let it sit for 15-20 minutes, then jump back in it to start, it’s like it starts hard or delay starts when it’s hott. That leads me to not believe it’s the Cam Sensor or Crank Sensor. It’s leading me to believe it’s a Temp Sensor, especially based on research and evidence I’ve seen. Could this be the case or could it be something more severe?? Thanks.

[@GrindinGears526]

Question, I have an 03 GMC Sierra, starts up no problem in the cold but when the engine is warm i get crank no start. I have a p0118 code, could this be the problem?

[@kaysingh6199]

Could be possible. On other vehicles with that same problem you have iv found it to be faulty cam sensor. If u change that I would recommend changing the crank sensor too.

[@kaysingh6199]

Hope that helps but would definitely change the ETS FIRST.

[@kaysingh6199]

Sorry Ect....

[@ThulaniButhelezi-nm5cu]

My nissen tiida is overhesting and suddenly turns off of an engine while i'm driving, when i turns on the is running always may be if i can change teperasure sensor it can stop that habit thanks help keep on❤it

[@joseesguapo]

Does it make the engine rev high and low at idle? 1990 2.2 toyota

[@Dnasty1]

If my coolant temp sensor is bad will the temp in the dash also reflect that?

[@JR-kr1lv]

Not always. It should but other things go too and don't show up like it should. It's why I hate Dummy lights for, sales people take some out so beware. Turn key on only and look for all lights that's in book. Not hard to remove the bulb, seen it done off my bad dashboard, friend replaced it and took bulbs out because hard to get.

[@Dnasty1]

@@JR-kr1lv yea I understand how that could be a problem but the gauge still goes up gradually to running temp and on cold start stays at cold temp for a while. This means it’s good right?

[@northgeorgia1673]

I turned my 2018 hyundai tucson sport off and came back outside 3hrs later and my fan was running? Can you help?

[@M3GAN3116]

Thanks 👍 great video

[@CubanMofo]

It also affects the AC

[@CharlieSix]

Is it possible rewire a 2 pin connector in place of the the old 4 pin connector? Because I can only find a 2 pin temperature sensor. I can’t find a 4 pin temp sensor anywhere for my car. 1993 Chevy corsica. If you have any advice I’d greatly appreciate it. Thank you

[@elguapo7722]

Wouldn't the temperature guage have a false reading? Mine reads accurate but the fan doesn't come on

[@cameronarmijo4524]

I’m having his problems too reads at 190 gegrees not over 220 but fans never come on smh

[@attilananai4148]

​​@@thefrznrose you are right. My car have 3 sensors. One for the gauge, one for the fan and one for the ecu. It is a Honda Accord btw. Oh and the faulty sensor gives me 16l mpg. And bad idle when cold.

[@dhalsim-1]

Is there a separate sensor for the thermostat?

[@katiehancock1988]

Would it cause a crank no start on 2003 Chevy blazer 4.3?

[@israelmendoza7599]

Other symptoms are cold hard starts, long crank intervals before starting also the temperature gauge might not work at all it will be stuck at cold even when the car has been running for 10 minutes

[@johnwhite192]

Thanks very helpful definitely getting changed now even though I do get great gas mileage I'm steadily trying to better that gas is to much gotta keep up with these old vehicles or they will be junk in a fast rate if that makes sense. Probably got around $6,000 dollars into a 500 dollar truck lmao but I'm happy so f it I just wish insurance would cover me for what I say vehicle is worth I can very easily prove it to 4k for transmission alone whole suspension is brand new just had to replace brake booster now temp gauge and probably next will be the rack and pinion. Since the new booster the brakes work to good can't get used to it lol it might need to go back see what he can do about that turn it down lol.

[@martinlandaverde403]

My gauge doesn’t go up it all,I check the thermostat and is good,and I replace the temperature sensor unit and still not working, any thoughts.

[@Raphalou]

Whats and estimate cost to repair? I have a 2004 Hyundai Accent

[@Abqnmseeyousoon]

Can you still drive you vehicle with this issue

[@michaelblinks8005]

Thanks bro. Good one

[@Engbader]

nice thanks

[@jeremyaudet3810]

would it also cause the ac system to not put out heat?

[@mal3x]

Hello, help pleased! My fans work when I unplugged the sensor, but they won't work when I turn on my ac, could this still be just the sensor?

[@alexharper9786]

Could this be why my truck takes forever getting to operating Temp bad sensor

[@greatcesarsghost]

On my Jetta the fans turn on 190 . Witch dash gauge is normal .replaced top coolant temp sensor .. someone said there's a other sensor on bottom corner of radiator where lower radiator hose is ?? Should I replace this also

[@joshuacox6736]

My Chrysler 200s fan stays on after turning off the engine and removing my keys, replaced the thermostat 4 months ago and it stopped and the check engine light went off. So I wonder if it’s the sensor, but no check engine light is on this time🤷🏻‍♂️ checked fuses/relays. Everything looks fine but fan stays on

[@ifensler]

The fan is supposed to stay on for a little bit after you turn the car off

[@BryanG830]

I replaced the cooling fan relays and the cooling fan fuses and I replace the cooling fan itself and cooling fan works and turns on and coolsbthe engine and the AC is ice cold. However as soon as I turn on my car or when the car is idling once i park it, that's when the AC is not cold the fans aren't spinning. And I just replaced the fan the fuse and the relays. Also replaced the thermostat too. And the only thing I have not changed was the engine coolant temperature sensor. Ben still the fans still spin and the AC still gets cold but once I hit the throttle or gas pedal. I noticed every time the engine misfires while idling, that's when the fans don't spin and the AC is not cold. What the hell is wrong with my car? The check engine light is on but it's only reading one code.

[@LaxShinobi]

Would this help with a p1217 on a Infiniti?

[@chrischiccino88]

PERFECT!

[@NERI-SHKEMBI]

can you please give me an idea, my car is opel zafira B 1.6 of 2006 show these codes on the screen p111505 and p111606. after I have changed many parts and the problem continues again, I have changed the temperature sensors in the radiator and in the thermostat, the original thermostat has been changed, the new deposit cap, the water pump. I don't know what to change, I have spent a lot of money but no solution please help me with any idea

[@КирилДраганов-р9д]

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!

[@c0mm0n_c3ntz]

6th Symptom fan on when engine is cold.

[@brandenrodriguez7915]

Would this also contribute to not getting heat out of the interior vents?

[@ogcsupra5522]

I would flush your heatercore

[@dhalsim-1]

That usually means the system needs to be bled or the heater core is blocked. Pray it's the first one.

[@brandenrodriguez7915]

Luckily it was!

[@dylanpresley3079]

Can it be bad without a trouble code?

[@MicahPounders]

Yes

[@dsmith421]

Good vid bud👍

[@predragsmiljkovic2039]

Hi bro, when i start my car for the first time in the morning , car start bud immidiatly die. After second start car everithing is good. I changed coil, cable, spark plug. Is coolant temp. senzor could cause this ptoblem? Thanks

[@sanelenele260]

Hi when I turn on my car it overheat what is the problem or it sensor of temperature that is not working

[@SithRattus]

2000 mercury cougar. V6 engine temp fluctuates up and down. Gets very close to red but no weird smoke coming out from pipe. When i get past 3k rpm it feels kinda like a chug. Any possibility the temp sensor is bad? It does this intermittently. No leaks, engine light IS on, and getting somewhat bad mileage. AC blows ice cold and heat blows hot.

[@SithRattus]

Id like to add i have not put it on a scanner yet but plan on it today

[@teddavis942]

What if the fans continue to run? Is the sensor still the issue? Run with car off and key out. I've changed relays and check coolant levels. Fan still continues to run.

[@unwindtv4538]

i got code P011A, What does this code mean?

[@natividadayala4955]

Thank u😁

[@choadcityusa]

My temp gauge doesnt work now after mechanic replaced ect and thermostat, is the new ect bad or did the cluster get fried? everything else works on the cluster though. He said it will cost 500 bucks to replace cluster.

[@dhalsim-1]

It sounds like an electrical gremlin, I doubt the cluster needs replacing as everything in the cluster usually works off the same fuse. If you can get or borrow a scanner that reads the engine temp as it rises you'll know the sensor is ok if it does.

[@choadcityusa]

@@dhalsim-1 or maybe an actual gremlin went in there and chewed one of my wires, i hear they are addicted to the shock. anyway thanks, im getting a different mechanic to look at it soon to see whats going on...and also i realized my check engine light doesnt come on at all.

[@rodneypelham375]

Will ect make one won't idea

[@dongkalok]

So I have a 2003 Mercedes’ slk230 car starts and runs, when the engine is warmed up under 1k idle I go out for a drive. After the drive, park it and turn it off to go out for 15-20 minutes, and start the car again, but it was stall but still turn over. Could the sensor be out and fuel not be deliver properly

[@galapagosbusinesses.8859]

👍😠👍you are awesome thanks.

[@easyautofix]

No, YOU are the awesome one!

[@galapagosbusinesses.8859]

@@easyautofix 🌅🎵🍷👍

[@nevalyin7802]

Is the engine coolant Temperature sensor and the water temperature sensor the same thing ? I really can’t tell. . Acura TL : part number 37870-RTA-005 I would greatly appreciate your response, Mr.Mechanic from afar

[@robertfranks3934]

coolant level sensor runs your fans

[@MobileWrenches]

@@robertfranks3934 no the engine temperature sensor runs the fans .the coolant level sensor warns of low coolant..

[@MrMorseone23]

So my ac stop working the fans stay on after I turn car off and the heat gauge is stuck at C Any advice???

[@u.s.a.198]

Ty

[@alexanders1075]

Thanks for your videos but my car When its hot the fan not working on high speed Just working on low speed So my car get over heated

[@oswaldocobian637]

Can this cause truck to sputter? Maybe not enough air/fuel?

[@danielguerrieri2023]

I wonder mine does gotta try this sens swap

[@oswaldocobian637]

@@danielguerrieri2023 Check your timing bro. That was my issue, took it to a shop they thought it was my distributor. it ended up being my timing. I changed every possible sensor

[@danielguerrieri2023]

For me it was my Tstat.actually.. low power, and tick.Due to inadequate temp.I think Scan toll showed bet. 150_158 °f N.G.! Tstat had coolant blow by.. 2001 GMC Safari mini van.4.Vortec

[@alexpanda5379]

When my engine is cold it does not start otherwise I press the accelerator it stays for about 1 minute at 1600 rpm and then goes down . I don t have any check engine light . Instead when the engine is hot it does non need anymore my foot on the pedal

[@immortalbeing5628]

Glow plugs

[@Dankcatvacs]

sounds like a coolant temp sensor and a light for the cel.

[@jamesalexander958]

These sound like symptoms if it's reading colder than it is. From what I have read (and now experiencing) it usually reads hotter than it should. I get a very rough running engine at lower ambient temperature

[@anthonyklanke1397]

Do you think a faulty temp sensor could lead to a no start problem?

[@envyvezzy21]

Yes crank but won’t cut on fully

[@itmightbeoctober8789]

my car recently has super low rpms & the tempature meter moves up & down & poor mpg

[@newyorker1939]

I have a 2000 accord 4cyl and both fans won’t turn on even when I turn the A\C on, would that be the temperature sensor or would it be the thermostat? Btw no check engine light on

[@cameronarmijo4524]

What was it

[@Pretyboyflako1]

Could be a fan temperature sensor

[@spadestrump1112]

Your issue is the temp switch sensor. 1 sensor controls fans, other reports temp to ECU. Replace the temp switch sensor, also replace fuses associated to cooling fans. It could just be a bad fuse and 2$ fix, try that first and then coolant switch sensor

[@zeekstersthename8014]

My 2013 malibu has a failed ECT sensor. Would that be why my car sounds louder when driving? feels like the car is overwhelming its self for only a sedan? Also, as soon as that happened, the temp was stuck on C and my air condition could NOT blow COLD AIR, JUST FAN. please let me know brother if my car engine noise would fix up and the other issues as wel

[@Ray_Ray]

Happened to me yesterday. EXACT same. Stuck on C and A/C not blowing cold at all. Halfway on the drive home. In Texas so it’s July and BLAZING HOT. 102+. Would hate for somebody to screw me over for a $10/15 part. Let me know something brother. 2013 ATS here. Same engine as Malibu.

[@zeekstersthename8014]

Hey man I apologize. I ended up needing to replace the water outlet The part its self cost me 100$. I just took it to the mechanic, I couldn’t handle it.

[@dustinwalling2003]

Can it cause my car to sputter at higher speeds ?

[@merlincalo6877]

Nice video. Can a bad ECT sensor cause a check transmission light to come on? I ran a scanner on my car last week and got the code P2183. Which means most likely the ECT sensor is the cause for the problem.

[@kumana5050]

Yes it can. It happened for me.

[@ebbienells3459]

i would like to know, the new ect won't turn the on ac; it says the engine is hot a/c off

[@easyautofix]

Your right, some cars do experience this problem.

[@zeekstersthename8014]

@@easyautofix my car shows that on a FAULTY ECT SENSOR..will it show again after gettin it replaced??

[@zeekstersthename8014]

@@easyautofix also, if we do expericne it..how do we fix? add antifreeze??