AC Off Due to High Engine Temp - How to Fix!

[@raymondscott9851]

If you never saw a car in your life you could follow along to this video and make this repair how good it was made. Thanks a million!!

[@TheForerunner117]

Hey; thanks for sayin that bud.

[@ricardovillanueva825]

FYI not all cars are made the same way, you don't know what you are talking about.

[@m3m3lina47]

Sending a virtual bro hug. Problem came up this morning, and i had it fixed by this afternoon. Homie, you are a life saver!

[@TheForerunner117]

@@m3m3lina47 glad it helped!

[@kinglangren]

Glad that fixed it however a multitude of things can couse this . Radiator or engine sensor, thermostat, low coolant, bad connections on wiring, air in system, broken electric fan. Glad it worked and hopefully it will help.

[@eas296]

Bro you’re a genius ! Thank you saved me whole week , now I’m going back up north his weekend

[@TheForerunner117]

Glad it could help my guy. Comments like this make me wanna make more vids.

[@pacotaco840]

Thanks for the helpful video. My sensor was in two pieces. I gotta say at 1:25 you put that clip on a lot easier than I did. Liked and subscribed. Thanks again!

[@TheForerunner117]

Jeez!

[@ftccchefleealicoka5868]

@@TheForerunner117 did you do a scan on the car and if so what code came up ??

[@altony.5534]

Thank you, this was very helpful. Got my AC back on and my engine light turned off.

[@TheForerunner117]

Glad it helped

[@masontacconelli1680]

What was the exact name of the sensor??

[@williamwendel2289]

Thanks. Had same problem. New sensor fixed it. Old sensor crumbled apart when removed. You have to clear the fault by turning off engine and restarting. Had to reseat sensor because it leaked at first. Thanks for the help.

[@italivyhernandez5266]

Would this work for a 2010 SS Camaro

[@masontacconelli1680]

What was the exact name of the sensor?

[@Arizona_rider]

If you do lose that keeper, Home Depot has a section for nuts and bolts and every keeper you can think of

[@TheForerunner117]

Good to know

[@theseattlegreen1871]

Please help what do you do if you change the sensor and the AC is still off any engine is hot

[@davidperry1116]

Thanks was having this same error, Checked the thermostat sensor and it was cooked!!!! $10 part but ended up having to go to pull a part for a new cable to rewire ... still pretty simple fix!!

[@TheForerunner117]

Glad the vid was helpful!

[@davidperry1116]

@@TheForerunner117 very, saved me 💰!!

[@Roberto-gp3yx]

Great video ! I have a 2015 Malibu LT and so far (258k+ miles) I have not come across this issue but I’m glad I came across your video I have done two coolant flushes in my cars lifetime I’m wondering if that help with the longevity of that sensor. Either way I love the car it’s been great and very economical the ac is super cold compared to my other vehicle I do suggest to service the ac yearly to help with the longevity of that as it is an expensive repair if done at a dealership ($1500-2000)

[@TheForerunner117]

Generally most people don’t change their coolant as often as it’s recommended. As it wears out and breaks down and potentially overheats higher than its intended, I’m sure that plays a role in sensor function. I’d wager a bet that it’s helped keep yours from going bad. Also could just be a handful of these sensors that came slightly defective from the factory. Who knows with these sorts of things lol.

[@maliktwotimes5292]

Was your car running hot or this code just kept popping up ? Cause wen I drive mines the temperature gauge shoots up then that messages pops up … the shop replaced the head gasket and the thermostat

[@TheForerunner117]

No the engine wasn’t overheating at all. I’ve seen temp sensors make the gauge go to max before even though it’s not overheating. I’d change the sensor even if just to eliminate the possibility. It’s a cheap part.

[@helenfayaltman2005]

Ok what happens after you replace the censers an the screen still saids the same thing

[@madmax6370]

Bro why don't your own show! I more amazed by your editing skills. Than my car 🤣💁

[@TheForerunner117]

Idk bro I made this video entirely on my iPhone and did the voice over with my apple headphone microphone lol 😂

[@CashTheRealest]

I saw a video where the top was a tin pin and the lower sensor was gold pin. This is the tin pin sensor correct?

[@dizzy.melodies]

Hey! Not sure if you'll see this before I either go to a mechanic to finish the job or find a proper tool at the hardware store, but would you have any recommendations of a good tool to use to pry out the rest of the piece if it falls apart while you're removing it? When I went to yank mine out all that came out was the black base of it and two copper wires. The gold covering is still inside the plastic housing. I've been working at it with some pliers but they aren't quite long/thin enough to really get in there and give it a good yank.

[@dizzy.melodies]

I also wanted to thank you for how simple to follow this video is, I've been using KZbin for help on minor repairs on my car and this is definitely one of the better videos I've consulted. It was going without a hitch until the damn thing fell apart.

[@TheForerunner117]

@@dizzy.melodies without being able to see it, my first thought is to melt the end of a glue stick try and stick it to it? I’m guessing the rubber oring and stuff is still stuck in there?

[@TheForerunner117]

@@dizzy.melodies if there’s still plastic in there you can use a small drill bit to make a hole and try and thread a coarse screw like a drywall screw into it and use that to grab onto.

[@TheForerunner117]

@@dizzy.melodies auto parts stores sell a variety of long handled needle nose pliers with various bends and angles. I have a pair that’s about 10 inches long overall with a 45 degree bend at the end and they seem to have gotten me through most tough situations where reaching something in an awkward spot is required. Good luck!

[@dizzy.melodies]

@TheForerunner117 thank you!!! I ended up picking up a pair of 6 inch needle nose pliers, after a decent amount of elbow grease I was able to pry it off. Got the new part in but was having difficulty with the clip- the new sensor shouldn't be able to move around, correct? Fired her up to see if the warning code was still there, it was but I'm unsure if it just hasn't cleared from my system yet or if the part isn't on correctly.

[@kelvinkimaiyo7779]

Thank you for the video it actually made me fix my car

[@steviebarnwell156]

I just replaced the thermostat and that didnt fix it. Im hoping this will work. It looks easy to do and i wont have to pay someone to do it. Ill check back soon if it works.

[@Arizona_rider]

I had the same idea. 5 years later my Chevy is rebuilt. Except the ac on causes temp spike

[@mistylane1610]

I was charged so much ($519.00) by d dealer for getting this fixed. Was called replacementthermostatand coolant temperature sensor and thermostat assembly. Plus, Right front HUB/BRG with ABS sensor which ABS didn't even showed warning on my car. I just saw it on the invoice and costed me $ 531. Plus diagnostics, ECM updates . Total of $1600. That was in Sept 9, 2021. 10 days ago my ABS and stabilitrak lights are on. I didn't have this problem before but they changed a part. Now it is on. I'm so disappointed and so sick of this. I drive only on weekends. I'm afraid to go back to d dealer I might be billed again so much. I drive only on weekends. 12km a year since I got this car 3 ½ yrs ago. It's heart breaking.

[@TheForerunner117]

That’s an oof. Sometimes the magnetic ring that’s on the wheel bearing can rust and break apart and cause the abs system to fail. Just a tiny little magnet that is unserviceable. You have to replace the entire wheel bearing hub assembly. I had to replace the front right one on this Malibu as well.

[@BigRed1551]

Unplug and plug the bcm a couple Times then plug it Back in, reset code tell me If It fixes It

[@King80s]

Changed out this sensor first nothing so I got a new thermostat and I’m still having issues

[@egeezy2006]

Try to disconnect the battery then reconnect it to clear the code that’s what I did after I changed the sensor .

[@zeekstersthename8014]

My car does not show the engine light anymore but it still shows that message in the middle and the temp still stuck on C? It wont even go up a little bit. Any ideas?

[@TheForerunner117]

Could check the thermostat or the second temperature sensor on the radiator.

[@nikkipinckney3343]

Can you still drive the vehicle with using the AC until it get fix?

[@TheForerunner117]

I’m not sure the AC Would work or blow cold while this message is displayed. But yeah probably. The cooling fans will just run at full blast because the car can’t tell what temperature the engine is, so this makes it run in high speed mode as an emergency safety precaution.

[@stevenfreeman52]

Hi, what is this sensor called? I have a 2010 equinox.

[@TheForerunner117]

Engine temperature sensor

[@gaylenash9070]

What if you replaced the coolant temp sensor?? And it still says that and the fans are running high

[@TheForerunner117]

Did you replace both of them

[@gaylenash9070]

Sorry I didn’t hear what car it was…mine is a Cadillac thanks

[@Warghoul]

This error is on my car right now, but it’s snowy and cold again and we don’t have a garage to do the repair in. So off to the mechanic I go this Friday.

[@TheForerunner117]

I just did a timing chain on a Mazda CX-7 in the rain in Michigan with no garage lol. Sometimes you gotta just bundle up and get her done bud!

[@Warghoul]

@@TheForerunner117 damn

[@renasorrell241]

What happened at the mechanic did they fix

[@braxtoncooper4760]

Does anyone have a part number for the connector that goes into the sensor?

[@masontacconelli1680]

I’m wondering the same thing brother hopefully someone reply’s.

[@jayydawg3228]

Wow thank you!! You got a subscriber right here

[@DELTRANIO99]

Great vid ,,Did you have to drain the coolant before you changed the sensor ?

[@TheForerunner117]

Nope. Only a little dribbles out, it’s high enough in the system.

[@insidethepits]

I got the same issue on my Corvette C6, any idea how I can fix this issue on it?

[@TheForerunner117]

Start with the coolant temp sensor and it’s connector and work your way from there towards thermostat etc

[@z0b622]

Sometimes it's just a fluke. Use a scantool to erase and see if it comes back on before going through this process. Codes or no codes, a scantool will erase this.

[@elevatione2845]

how do you do this ?

[@ryancollins6128]

i did this and even replaced the other ect connected to the radiator, its now 2 days later and i got the message again and my fans run after turning the car off, i put brand new coolant in after installing the replacement sensors, so levels r good but something is blowing my sensor, i got oems so they shouldn't of been faulty. however i might think its a thermostat issue, maybe its stuk or bad therefore messing the sensor up, idk. any advice?

[@TheForerunner117]

I’d think maybe the thermostat at this point. Or the head gasket is blown. You could test to see if exhaust fumes are getting into the coolant

[@AntSeemion]

Did you ever find out what it was? I’m having the same problem with my fans. Even after the sensor has been replaced. 2014 Malibu.

[@renedesantiago]

I'm getting this same exact signal... I have a 2015 Chevy CAMARO... ac off due to high engine temp

[@TheForerunner117]

Check thermostat and both coolant temp sensors.

[@steviebarnwell156]

So it was the ECT sensor. the one in there was crumbling when i took it out. The part that goes in the connector broke off inside the connector. It felt like it was fused or melted to the connector. The connector broke trying to yank the stuck part of the sensor out. I had to pull out the sensor a little piece at a time. So now i gotta go find one of those. Ugh..thinking the fix would be is as easy as 5 minutes.

[@TheForerunner117]

Oof. You should be able to get one of those at O’riley’s or something easily. Just splice in a couple wires with connectors and you’ll be foot to go.

[@steviebarnwell156]

@@TheForerunner117 Ya it wont be hard to splice. Thank god its easy to access. I went to autozone and they didnt have any in stock anywhere in my area and i cant find shit online. I dont know specifically what the part is called so maybe thats why im struggling to find one. when i look up "ECT sensor connector" or "pigtails" i get hits for a bunch of other types of connecters. Worst case scenerio ill go pull one out of a junk Malibu at Parts Galore this weekend.

[@TheForerunner117]

Maybe try a junk yard in your area? They use those connectors for a ton of different years and models

[@TheForerunner117]

@@steviebarnwell156 there’s nothing really proprietary about them, just positive and ground, you could rig something up until you manage to find one.

[@Hectorcazarez-i9s]

I changed my radiator one and the coolant one and it still has that message

[@TheForerunner117]

Try also checking out your thermostat, might be stuck closed

[@brennon6537]

What do you do if you have replaced that sensor in the gauges still don't work and the fan is still blowing hard when you start your car

[@TheForerunner117]

Check the wiring

[@BigRed1551]

Ac pressure sensor

[@egeezy2006]

Disconnect the battery then reconnect it it should clear the code that’s what I did after I installed the sensor

[@Savage7mileKilla]

I just had a shop do mines but the outlet had to be replaced because I was going to do it myself until I discovered the sensor was broken and burnt… my car was already running hot and still is after the shop did work my car heats up to 227 degrees even with replacing water pump housing with thermostat… any suggestions anything would help thanks so much 🥹

[@TheForerunner117]

227 F is actually pretty close to normal operating temp. Where you live might affect that a little. You could check and make sure your fans are turning on properly when it warms up. Check to see if the radiator is covered in bugs and leaves and whatever else. Also, check and see if someone painted it. Paint on a rad is a bad idea. Could lead to slightly high temps. I hear all the time people saying that thermostats out of the box can be junk but I’ve never had it happen to me. There might be the option to change the thermostat to a different location one that opens up at lower temperatures. Try letting your car warm up and turn the heater on full blast, hot. And see if the temp goes down some. You could have a plugged heater core or an air bubble in your coolant system from when that shop did that work. You can typically bleed the coolant system by running with the rad cap off but I’m not sure if that model has one or not. Might be another way. Some cars have bleeder valves. Sometimes the air will work it’s way out on its own.

[@vanessanoland8299]

Thank you so much

[@musicloversss6326]

My Vauxhall Astra 2012 also had the same issue. Temperature gauge also not working. Replaced the Thermostat and it fixed the issue only for 2 weeks, Now the error comes again and temperature gauge not working again. Frustrating!

[@TheForerunner117]

Could be a faulty replacement part, or your sensor harness is damaged, is being over volted maybe?

[@musicloversss6326]

@@TheForerunner117 Yeah Possibly. Only been 2 weeks after replacing it. Should go to a mechanic and see. Thanks a lot

[@TheForerunner117]

@@musicloversss6326 I’d go to the parts store you bought it from first and see if there’s a warranty on the part. Likely could get a second one for free and see if the same thing happens

[@musicloversss6326]

@@TheForerunner117 That’s a good tip. Thanks a lot for that

[@TheForerunner117]

@@musicloversss6326 no problem, good luck with it

[@prophetessmichelle3588]

Hello I have a 2011 equinox I replaced my sensor twice it keep getting stuck the middle won’t move from c ! It got to be a default or bad wire some were and the cold 🥶 wealth in Fl May be it’s 40 now

[@TheForerunner117]

Have you tried the sensor on the radiator?

[@silasalice8725]

Hi I’m planning on changing mine but the fan still runs for few minutes when engine is turned off. Please will this replacement also stop the fan from running?

[@TheForerunner117]

If you live somewhere hot, I think that’s normal. Unless your sensor is bad it could be just running the fan be default to try and protect the engine because it can’t tell what temp it is

[@83von94]

@@TheForerunner117 witch sensor would be bad ? This is exactly what’s happening to my car as we speak

[@TheForerunner117]

@@83von94 probably the one I show in the video.

[@83von94]

@@TheForerunner117 okay thank you 💯

[@poppaluv]

Can you tell me if this is an issue with my mom's equinox? IT will blow cold when it wants to and then stop. Might be fine for days, then it stops blowing cold after 5 minutes and goes ambient? Not sure if this is tied to the overheating issue that acts the same, fine for days or weeks. fluid is fine. Another day it overheats an fluid is low I'm trying to get it nice for her dor this mother's day Thanks

[@TheForerunner117]

If you’re losing coolant it has to be going somewhere. Likely into the cylinder. Would explain the overheating as well.

[@chrisgreff832]

So i changed mine but now its leaking coolant out of the hole where the sensor sits in. Its like the sensor isn't seated properly but I've checked it 10 times. Any suggestions?

[@TheForerunner117]

check the oring on the new sensor. might be ripped or something?

[@Tx-xp9fg]

My temperature sensor keeps breaking I have a new one barely 3 weeks and the right part and I got the message again and ac won’t work any idea?

[@TheForerunner117]

That’s weird. I’d start to wonder if maybe there’s a bad wiring or connector for it, shorting out somehwere? You could check the voltage on the connector and see if it’s steady or changes when you manipulate the wiring

[@Friendly_neighborhood99]

I replaced my intake and exhaust solenoids and that fixed the problem

[@user-rq3bs8mp7r]

Thos doesn't always fix. I've replaced them just to have same shit happen on amd off. Check wires, also reset coee and original 1 still works.

[@theseattlegreen1871]

Because I changed the sensor in my car and my temperature gauge is still all the way to the bottom and the AC is off engine hot the reading on getting

[@TheForerunner117]

Change the one on the radiator.

[@theseattlegreen1871]

@@TheForerunner117 I have a 2007 Chevrolet Equinox I don't think there is one on there is there?

[@xdcodm7068]

Thx

[@bussaneck]

Hello Sir I am having the same problem but the coolant temp is hitting 254 before it happens. But I am still going to replace the sensor.

[@TheForerunner117]

If your temp gauge is rising, it might actually be overheating. 253 F is the temp that the computer will shut off the AC compressor. you should look into diagnosing your thermostat. you can sometimes see if its stuck by toucing (carefully) the big rubber hoses going in and out and seeing if they are both the same temp. if not, its probably stuck closed.

[@TheForerunner117]

also if you turn the heat on full blast, and see the temp go down, that would also confirm that the coolant is reading correctly and just overheating. unfortunately if its not the thermostat, it could be something as bad as a leaking head gasket. but it could also be a bunch of other things too. its also really easy to test if exhaust gases are getting into your coolant with a test kit. good luck

[@zeekstersthename8014]

How much does this cost if i take it to mechanic?

[@TheForerunner117]

Dunno bud. Haven’t taken anything to a mechanic in over 15 years. A quick Google search says average shop rate is 100$ per hour so you’d think it would be at least 100$ plus the part. 200$ plus if they’re slow I guess lol.

[@iSwaggBoys]

I have a 2012 camero with the same issue

[@bryanboyer7856]

Mee too! Any luck yet?

[@jessesanchez9364]

My gage just goes back and forth from hot to cold, you think this could be the problem??

[@TheForerunner117]

It could be, or the wiring. Try playing with the connector and the wires while someone watches the gauge. Also unplug it and see if there’s oil in the connector. How the sensor usually fails is they start leaking oil through themselves into the electrical connection

[@Slick_Rick859]

Does your radiator hoses have pressure to them?

[@TheForerunner117]

I think there always a little bit but mostly when the engine is warmed up.

[@vanessamarin3616]

Trying to fix mine at the moment the sensor has too many kinds I bought mine at autozone I believed that I bought the wrong one 😫

[@TheForerunner117]

The one I used was part number 37887

[@jameschavis5660]

My check engine light does not come on. Stupid question. Will it still give a code?

[@TheForerunner117]

Sometimes the computer will show a code if you hook it up to a scanner even if there isn’t a check engine light, so it can’t hurt!

[@sooflex15]

Okay so the one near bottom radiator is same part as the one near tip of engine? Or they are different?

[@TheForerunner117]

I do believe they are the same part. If you to advance or O’riley or whatever they should be able to help you make sure either way if they aren’t brain dead

[@MrKasee7]

I’ve replaced mine .. but still the same issue ..

[@TheForerunner117]

Yours might actually be overheating.

[@renasorrell241]

Are you in Michigan??

[@randysteiner3032]

Thxs

[@opalcollier8325]

Wowwwwww That’s what it’s doing I’ll guarantee that’s what it is

[@johannahernandez7925]

What if it isn't showing a code

[@TheForerunner117]

Just overheating? Then it’s probably overheating for real.

[@Khalat84]

what if this happens on a 2015 camaro?

[@TheForerunner117]

I would imagine the same could be applied to other GM's of around the same age range.

[@debsakebow4098]

Hi I have a 2010 gmc terrain and I was driving and then my heat went off and my suv started overheating I switched my thermostat checked my radiator and did I diastolic test and it said my suv was good but my suv still overheats and there is no heat ...is there anything you can recommend?

[@TheForerunner117]

Check and make sure your radiator fan is spinning when it gets hot. the fan switch could be bad. could potentially be a blockage somewhere stopping coolant from recirculating. perhaps the heater core. or a leak/low coolant

[@debsakebow4098]

Would it fix the heat if I change the sensor and overheating problem?

[@TheForerunner117]

@@debsakebow4098 if the heat gauge is starting out cold then slowly going up and into the over heat then the sensor is likely not faulty

[@debsakebow4098]

@@TheForerunner117 there is no heat what so ever my uncle tried everything he could think of ...it doesnt overheat when parked and running only when I drive

[@TheForerunner117]

@@debsakebow4098 could always be a head gasket unfortunately.

[@jayydawg3228]

Was this a chevy malibu?.

[@TheForerunner117]

Affirmative

[@kailarivera3640]

My 2013 chevy Malibu has this exact message "AC off due to high engine temp." The temperature gauge stays on cold even after driving it for a while, and a fan stays on for several minutes after the car is off. I went to AutoZone and it didn't give an exact reason for the check engine light. I figured it was possibly a temp sensor which is what the associate at auto zone originally stated and then said oh you have mass air flow sensor and wrote that part down for me so I could pick it up tomorrow. I changed the mass air flow thing and my car still has that alert and the fan still runs. Are these the same issues you had and replaced only the temp sensor? I am trying to be more self sufficient so any insight would be great.

[@TheForerunner117]

I can’t really see how the mass airflow sensor would cause this issue. If your temp gauge isn’t reading anything then I’d bet that your sensor is junk. The think is there is two of them. One in the engine and one in the radiator, I got lucky snd changed the one that needed to be changed first. (Happened to be the one in the engine)

[@hahagteeem5532]

@kailarivera I have the exact same problem the thermostat stays on cold , car runs good just the noise of the fan , but I am also curious to know if you fixed your problem?

[@ADAM-tw6ej]

@@hahagteeem5532 so it's safe to.drive the car like that?

[@hahagteeem5532]

@@ADAM-tw6ej runs fine just the fans are spinning

[@ADAM-tw6ej]

@@hahagteeem5532 ok I was ki da nervous to drive it to work

[@syedtauqeersabir2094]

Code 4 reappearing in Malibu 2013 causing the AC off and temp gauge stops working, fan keeps running after switching off engine as well. Changed ECT sensor and reservoir cap but it came back again after a week or so

[@TheForerunner117]

Sounds to me like some wiring or connectors might be faulty if you touched em all like that and then soon after, they stopped working again.

[@TheForerunner117]

Don’t forget there’s two different sensors on that car. One on the block and one on the radiator.

[@zekemartinez2583]

My thing loose it won’t tight up why?

[@TheForerunner117]

Your thing?

[@brobro_afoolie5101]

Okay so wats the part called

[@TheForerunner117]

Engine coolant temperature sensor

[@brobro_afoolie5101]

@@TheForerunner117 so that not the on on the radiator

[@andrewalker4457]

So i changed mine and still shows the same thing

[@TheForerunner117]

could be actual high temps, or the other temp sensor on the rad.

[@andrewalker4457]

@@TheForerunner117 I had to drive it. For the sensor to reset

[@kirkiskhoas6029]

My ac knob are not engaging with ac and the lights are out on the ac dashboard but the ac runs ice cold

[@zekemartinez2583]

What’s it called

[@TheForerunner117]

Engine coolant temp sensor?

[@whatchumacallit7435]

Jus seen this in Spanish 😂😂 💀 ask 4 English version.. Next video to pop up . Matrix 👀

[@sylviaortega2239]

Would be nice if u could speak up a little ... Was trying to hear the name of the part so I could go and buy it

[@TheForerunner117]

The part number is shown at the end. This was my first time doing a voice over for a video. Sorry.

[@sylviaortega2239]

Yes i paused n wrote it down right away

[@sylviaortega2239]

I changed that one out .. Worked for a bit n then started doing the same thing works sometimes n this texas heat omg ... Whats the other sensor? Do u think I need to change that one out?

[@TheForerunner117]

@@sylviaortega2239 I think it’s the same part. There’s one on the intake and one on the radiator. Could also be your thermostat. Could also pry use a coolant flush

[@sylviaortega2239]

@@TheForerunner117 ok thanks again hopefully it will work

[@TerryBoudreau]

I did this fix and sadly this message returned

[@TheForerunner117]

Check the connector for damage and dirt. There’s also a temperature sensor in the radiator depending on your model, that could have died as well.

[@derrickwatts3889]

No

[@kelliedougherty4041]

I did this and my car is still doing it

[@TheForerunner117]

Check the comments for other possible solutions.