Quick tip- When the transmission overheats, shift to neutral, set the parking brake, and let the engine idle until the temp comes down. Depending on the transmission, shifting to park may be the exact wrong thing to do when it overheats because some transmissions don't circulate fluid through the cooler while in park. Not sure if that applies to your transmission, but every transmission I know of circulates fluid through the cooler in neutral, so unless you know that your specific transmission circulates fluid through the cooler in park, I would shift it to neutral instead of park if it overheats so I know that fluid is circulating through the cooler. Hope this helps you or someone else

Every single pickup truck should come with a separate transmission cooler, no questions asked. But then again….

Video starts at 4:12

Mine was under filled by a quart from the factory...it would slip under WOT and I noticed temps running close to 210 just cruising around. Topped it off and it’s been fine ever since. Runs @ constant 192* while cruising, around 200* with 5k trailer.

221F is no big deal. I remember seeing some chart somewhere on the internet saying that transmissions prefer temperatures of 160F and if you go above that, like 180, transmissions will have a life span of only 50k miles. Not only is that false, but the source of that chart is from a manufacturer of transmission coolers ( basically I'm saying it's someone who has an interest in convincing people to buy coolers ). I have 2 trucks, a Cummins and an old 6.5 Detroit Diesel. On the Cummins, Alldata says I don't have to worry about the transmission unless it hits 275F ( I don't let it hit 245, but I've yet to see it hit 220 ), and on the 6.5 it says don't panic until 260F ( this one doesn't have a gauge, just an idiot light on the dash ). When you get to about 40k or 50k miles, have the dealership change the fluid in the pan. Not a transmission flush, almost all try to sell that, even to a buddy of mine. Tell them to just drop the pan, change the filter and the pan gasket, and replace the fluid that came out, nothing more. Having the dealer do it leaves a service record that the transmission was serviced and that it was done by them, so if anything goes wrong, they can't say that the failure was due to improper servicing. By the way, did you keep your old wheels and tires? Anytime the truck goes back to the dealership, remove your big tires and slap on the factory ones, so that if anything goes wrong with the drivetrain they can't void it because it was abused by the big tires.

Turn a/c on makes cooling fans run faster

My ‘14 Silverado 1500 4x4, 5.3L, trans temp running no load, straight highway, 90 outside temp, is averaging 196-199. Stop and go traffic, 90 outside temp, runs around 205-208. I will be installing a trans cooler.

Just bought a 16 Silverado 1/2 ton 5.3 with 58.000 miles and only put 300 miles on the truck and seen metal in the transmission oil. Thank god for factory warranty!! Once when I get it back the transmission thermostat is getting removed. And the v4 to v8 is going away. The reason why they did this is so the oil will get less dense and to improve mpg.

Transmission coolers come standard on Silverados, 2017 Silverado 1500 6-speed uses Dexron VI which is good to 285 degrees

Transmission cooler is In the ac condenser. If your Freon is low pressure switch won’t let the fans come on high. Will overheat your truck. Happened on my 2017 Silverado

Possible cause of your overheating issue.... U-haul box trailers are equipped with surge brakes. When you drive forward and step on your brake the weight of the trailer pushing against your hitch ball pushes a hydralic cylinder that turns on the trailer brakes. When you back up with the trailer, usually the brakes will not activateon level ground however when you back up on a grade the trailer brakes will drag. I have seen trailers with surge brakes lock up when a truck was backing a loaded trailer. With the trailer brakes dragging while backing up the torque converter in your truck will beat the transmission oil and heat it up fast, especially when there is little or no air going through the radiator which contains the transmission cooler. There is a lever on most surge brake systems that disables the piston that activates the surge brakes for the purpose of backing up the trailer. If you did disable the surge brakes before backing the trailer please disregard.

I just got back from a 12 hour trip and my trans temp on my 2015 ram 1500 was at 230.

Wow so much horrible advice with no real knowledge was given to you. Your torque converter slips when you are moving slowly and even worse in reverse with a load behind it. Reverse is geared at 3.064 vs 1st gear at 4.027 so it will cause more torque converter slip/heat to get the load moving. 221 is nothing to worry about but in the future just put it in 4low in these situations and you'll never have elevated temps since the torque converter will be spinning fast enough to lock. FYI your thermostat definitely doesn't know what direction your truck is moving, it strictly open and closes based off of temp.

After driving my 2020 Silverado 1500 in the sand in NC, I noticed the trans was running around 230 in the sand but at 175 on the road. Iv been told this is nothing to worry about as long as I follow the recommendations fluid change intervals. As long as it doesn't stay hot in normal conditions, there's nothing to worry about.

Just drove my 2007 Suburban over 4500 miles pulling a 3900# Geo Pro camper. We went from Louisiana to Sequoia National Park and back, Temps ran up to 242 degrees on the transmission gauge several times for long periods, and about the same on the engine temp, Used the tow/haul button the entire time. Has factory installed tow package with trans cooler. Had some real hard pulls through NM, Ariz, and California with speed dropping down to 40's on a few grades 6. The vehicle has 281,000 miles and never had the fluid changed. I believe if you stay below 260 your fluid can survive, wonder how many more miles she may have in her?

All normal 1500s run around 190. Mine just keeps climbing. Replaced fluid and filter. Still running hot. 2018

A year ago, my 4L60 overheated and I didn't catch it in time when I started feeling stuttering and my temp gage pegged at 250°. Added a small cooler after the radiators internal cooler. Drove several more thousand miles without breakdown. I have been keeping it below 210 as much as possible. Yesterday after a long climb, transmission had already been hitting 230° I had to pull over a lot. Now, it wants to overheat. I think fluid is done.

Yes I have flipped the thermostat and do the MOD ... it is super cool and I totally recommend it

I have a 2011 Silverado 4.8 4x4 And I was at the drive thru at MCdonalds And I saw it slowly climb from 198 degrees to 220 degrees in like 5 minutes🤔 Idk what happened, no abusive driving, not hauling anything. And trans fluid is still a pretty good color. Not dark

Mine overheated a few times in the summer...it was able to cool down....but two nights ago the thing overheated but wouldnt cool down... once i got out of the way of speeding traffic coming off of the highway I barely got off of, I opened the hood to help cool it because its cold out...the rad fans were doing struggle to spin movement then spun once and stopped. Repeated that cycle for a while until i turned the truck off. Following their instructions on the dash (idle engine) for 2 hourz wasted half a tank of gas and ran the transmission at the high temperature for that long period of time.. once I was able to drive home....and it was cooled down to 117c. From 140.c. the fans were spinning like nothing ever happened. Freely and constantly. So anyone have any idea why the fans stopped when the most critical moments of needing that fan happened? Its not a relay or fuse because it works fine now.....DONT LET YOUR TRANSMISSION GET DAMAGED BY FOLLOWING GMS IDLE ENGINE TO COOL TRANSMISSION PROMPT SCREEN ON THE DCI!!! *****If it doesnt start lowering trans fluid temps while idling*****

I am rebuilding my 2015 now ,$,$$$. Expensive good luck and dont over work those sensitive trucks.. I'm talking about 1500..

I had my transmission temp at 172 degrees Celsius. Which is 341.6 farenheit. Got the truck stuck on a lake going ice fishing. I didnt have the transmission fluid temp screen on when I was on the lake. So I didnt even know it was overheating. I looked down at my cluster and had a message. Transmission hot let engine idle. Took 25 min in negative 20 celcius to cool down. Had check engine light on and stabilatrack and traction control lights on for 1 day after this happened. Then it all shut off. Never had an issue since. Also I was in 4 low.

Never had any issues with my 17 High Country 6.2L overheating but I changed/flushed the 8 speed to Amsoil ATF when it left the dealership took that OEM crap out.

4wd would not help. 4 wheel low will lower your gearing and help.

While plowing working the truck super hard I’ve gotten up to 240s 250. Truck was fine. I’ve since replaced the fluid with amsoil heavy duty trans fluid and did the thermostat bypass and it’s kept the temps way down. However if you live in a cold climate unless you use a fluid that can stay liquid at very cold temps like amsoil stays fluid up to -85f. If you use standard cheap fluid you’ll burn the trans up.

I know this is an old video but the major problem is with chevy silverado is that the GM sends transmission fluid into a side tank of radiator that sits at 210° . This is a problem because this is normal temp for the coolant but transmission fluid doesnt like this. Heat will transfer from that radiator to the side tank. Heat goes to a cooler place. Best thing you can do is eliminate that and install a stand alone cooler like the Derale cooler with fan. They work awesome

You received bad old advice. With DEXRON VI you are good. It's tested up to 260F before it starts to degrade. 220F would have been bad in 2005.

I always take my truck up to the lake with some steep inclines and my transmission temp is always around 190. Recently I went up to the lake again but this time I used tow/haul mode because I read it will be easier on the transmission. That day my transmission temp went up to 230 degrees.

Well damn... my ‘15 Silverado (company truck) digital readout for my transmission was at 284° the other day hauling a bed full of tools/materials up a mountain.. after reading these comments I’m going to have it checked out and serviced. Once I switched over to “manual” and selected the gears individually and activated the tow/haul feature it dropped back to 220°ish. Will see what the mechanic finds... fortunately I won’t have to pay for repairs, I’d never abuse a company vehicle, but I try to have it serviced when needed. Thx

Dude 221f is not overheating a transmission. Especially if you are depending on the factory sensor which is normally in the valve body or post pump. Typically your trans pan temp is 10-25F lower as well. I wouldn’t even worry about the factory sensor location reading up to 235F+ and that’s still in the safe operating range.

Replace the trans oil thermostat with the superior solutions part #STL010 and your temps will be in the 150,160 range.

I do not recommend flipping the piece in thermostat block” flipping the pill” that’s what they call it. I have 2017 Silverado 5.3. 81,000 miles my temperature was running 180 190 I went on Amazon bought the superior solutions cooler flow bad pass valve kit very easy install really nothing to it comes with very detailed instruction. Very happy with the product transmission now runs 112- 134 I believe I paid something around 40 bucks absolutely worth every penny. Also, I would change the transmission fluid hell of a lot cheaper than a transmission down the road. Damn sure not gonna hurt it. Hope this helps you.

They should be a recall in these Silverado transmissions. This is absolutely ridiculous for these transmissions to only last 120-160 miles

2013 Denali max temp hit was 190F on idle, 150F on highway

I have a 2019 Silverado 1500LD and I've never had transmission issues. I bought it for straight long distance towing and my transmission temp loaded with 9k going up steep grades has never been over 195°F P.S bought it 6 months ago now have 30k on the odometer.

The warning doesn't even come on till 265F

Thank you for your helpful information, I am from Saudi Arabia and the weather here is extremely hot so you can imagine how the transmission temperature will be , two days back I bought a Ford F-150 v8 2019 (10 speeds) and I begin to experience some heating issue with my transmission reaching up to (222 F) ...I wonder if that’s normal or not ..I was driving gently in the desert with my air condition closed

Put transmission cooler my temp before 215 not towing an now stays under 200* towing

The transmission cooling lines go into the cooler in the radiator first, this actually heats the transmission, on my Chevy I eliminated the cooler in the radiator, I now have 2 transmission coolers in front of the radiator, both have electric fans run by a temp sensor for on at /l175 degrees off at /125 degrees. Solved my issues

Cover the exhaust baking the trans pan and the trans lines going by the catalytic converter. A cool trans is better than a burnt one. Do the thermostat mod, the cash will stay in your your wallet.

i have the opposite problem. i cant get my trans. to operating temp. i am not able to get it past 140F. thats not good , the operation temp. should be 170F - 185F.

The pressure line going into the radiator that turn in the line before it goes in radiator.. it was stopped up .. dropped the pan put new filter on, didn’t fix , after that .. was when I found the stopped up line .. it run 280 but never shifted bad .. just got all get out ..

My 2010 4.3 silverados transmission temp jumps from 170/190 to 277/244 but then goes down to 160, it just all over the place. I replaced the TCM, and had the transmission serviced. It shifts fine, even before it was serviced, so no problems there, I get the warning "transmission hot idle engine" after 20 miles or so driving it.. Any ideas? Thank you.

Good video man.

I need help I’m new to this u tube thing I have a 2021 gmc Denali 6.2 carbon pro I replaced my transmission fluid at 71 k and it was disgusting dark like engine oil so after a while I used a laser heat gun from snap on and measured the exhaust pipe at 468 degrees f the transmission pan at 356 f the dash temp said 76 degrees Celsius the exhaust pipe is about 2 to 3 inches away from the transmission pan wtf !!!!!

Shift technologies lower temp transmission thermostat! Regular driving mine stays around 145 towing the highest I've seen 175! The best part is there only like $38!!!

Just got back from dealer. Thermal bypass valve faulty. Common issue . In and out within an hour…. Truck runs 190-200 now

tru-cool transmission oil cooler will slam the heat, regular heat is 75-95 C , oil cooler will make it 50C and not above 80C when youre carrying stuff or doing pressure on the car

Part of the problem is the 190 thermostat gm started putting in the lines on the transmission. Trans fluid breaks down at 160 Degree’s. Delete the thermostat you’re welcome. Ima replacing my trans in my 2014 as I type this. 4600 im sure the 8 speed is a thousand more lol. 183k miles she decided she wasn’t gonna take it no more.

Got a question to ask? I have a 2012 Chevy Silverado 1500 lt 5.3 and the trans temp normally runs around 150 when driven normally but the recommended temp is supposed to be between 175 and 200 I had it up to 181 one time because I was driving aggressively! I don't understand how it don't reach a normal temp of 175 when driving normally but the stock trans Gage might be off to!

my 2014 silverado has been getting up to 285 after 30 minutes of easy driving and the truck goes into limp mode. about to have it rebuilt

Wasn’t hauling anything and reached 284°F today and the dealer I got it used from acted like it would be fine even though I know better and I wasn’t even hauling anything was just me and my wife and neither of us are built oversized lol

They have a Thermostat in them mounted on side of transmission, Remove the block on side and purchase a Surecool Part# STL010 Take it apart, Throw guts away, Install Surecool components inside it, Reinstall, Takes 35-45 minutes start to finish

220* for a short time is no big deal. If it had stayed at 250 plus for a while is when it starts to break down. My 18 sierra 6.2 with the 8 speed trans has a heavy duty trans cooler that is built into the A/C condenser; yours may have one also. Go to the dealer give them your VIN and have them print out all your RPO codes so you know what your truck has.

What I have seen it isn't an issue till 270. That is when it starts to thin out

Have a 2015 GMC Double cab 4.3 in South Texas. Yesterday noticed it got up to 216 going on a slight upgrade was going 80mph had to slow down to 65mph to start cooling down. I know it needs a fluid change thinking flush or just change the filter and what is in the pan top it off?

Tengo un silverado 2015 v6 3.5 pero sube la temperatura de transmision a 220 pero enciendo la refrigeracion y baja . A que se deve o que devo hacer

+1 on the 4x4, been told always use 4x4 when backing up a load

My 18 Silverado ran hot today. Which led me to this video. Why does the traction control light co.e on when trans overheats? I can't find any help in the owner's manual. I was on the interstate doing 80mph with a dirt bike and gear in the back. I wouldn't consider that a heavy load. Any advice for the future of my trans would be appreciated

Cool vid bud. Never had that happen in reverse towing, so I never thought about that one, but mine had run hot since the day I drove her home. Did the t-stat mod myself a few years ago and ran duel coolers. 2014 Rocky Ridge(over priced ball and chain) Shakerado 5.3l This truck still had the original 3.42 gears in with a 6" lift, 35's on 20's and on it's 3rd torque converter when I finally made a few changes to GM's "brilliant"(insert sarcasm here) engineering. Has run low 120's cruising interstate for hours on end(weekly 5 hour commute) since except for a few abnormally scorching summer days got up to low 130's. You may not need duel coolers depending on tire size, gears(overall strain on driveline), but if you go that route make sure to run them in parallel with each other, otherwise the effects of the pressure drop will eventually show their ugly face in the pump(scouring) and TC. A couple manually switched or temp controlled fans for stop and go and a manifold with a manual bypass ain't a bad idea either. Had to make up a manifold winter before last since trans wouldn't get any hotter than 100.. Hope this is helpful. Apologies for writing a book. Fingers just won't quit adding shit.. lol

My 15 has a 2899 stall, when it reaches 189 degrees it starts to shake/vibrate. Any fix for that? My trans guy says this new mobil fluid he is changing next week will/should fix it.

Had my transmission fluid get to 252 degrees on my 14 z71. I was about 3 hours into a pretty challenging off-road trail in Colorado when I checked and saw it was at 252, immediately shut the truck off and let it cool for 30 min. I haven’t noticed anything weird with the transmission after that but I will be doing the thermostat mod soon

Transmission delete is cool until you run it idle without ac on in drive, watch those numbers go way past 190. Keep truck moving and you are good

Do the needful trans thermostat delete mod . Simple .

That's not hot. Not even close. Synthetic trans fluid is good to 275°. I've had mine up to 240° with no issues. If you tow occasionally, don't even worry about it. If you tow heavy and often. Then adding an auxiliary cooler and doing fluid changes periodically and your golden. But your worrying about nothing.

My factory manual says normal operating temp from 215 to 249. At 265 a warning light comes on.

I have a 2017 Chevrolet Silverado 2WD just about to hit 100K mi trip to Arizona my truck slipped gears and then over heat + 220 transmission fluid’ I added fluid and towed now it went down but should I delete thermostat ? It should work to cool down lines I’m hearing?! Great video describing similar situations

I have a 2015 and pull a 34ft camper and the temp never has been higher then 195 even threw the hottest part of the summer

A few things one the thermostat on the side of transmission to these trucks have DOD and it causes the torque converter to slip need to turn off the DOD are you have torque converter failure which they’re known for because of the DOD

My 08 silverado is going up to 215 to 230 engine and trans when towing my camper. It will maintain there at 60 mpg for majority of a trip. Is that bad?

Hey guys can y’all help me out, I have a 2015 xlt Ford, so my transmission temperature keeps rising to 230 and my fans will not come on, and I’m afraid my truck will overheat. Note my A/C coolant is low it doesn’t shoot cold is that a fracture to why my transmission fluid is overheating.

I need help i engined swapped from 5.3 to 6.2 and the trans is over heating it has a 3600 torque converter what can I do

You think the mishimoto transmission colors will help with or without towing?..

My transmission temperature very low all the time.it that bad?after 4.5 hours straight driving from Vegas to new port California my transmission temperature was 178 degrees.when I just driving around town 120-130 degrees

Good lookin out

Can anyone give me a hand? I bought a 2018 Silverado 4.3L 4 months ago with 40k on it. It was having bad issues when it goes in to 4 cylinder mode. So I talked to the head mechanic at my dealership and he told me to buy a chip that keeps it from going into 4 cylinder so I did. I’m driving it for the first time and I am 4 hours into an 8 hour drive and I noticed it stopped shifting while on the highway then I saw white smoke so I got off the highway. As I was parking the trans overheating warning light came on. Anyone? There is a fluid that went so that’s what I’m assuming the white smoke was from but there is plenty of trans and oil and coolant in the truck. Any help? Thanks.

What is the recommended temperature on the transmission what's the temperature range with out pulling anything??

You were backing up a trailer with surge brakes up a steep hill. You were fighting the trailer brakes.

My 2014 z71 blew my trans on a trip back from Florida to Houston it was jerking hard but it got me home 147k miles 300 more and the warranty wouldn't have covered 3k out of the 5k repair they put a "new" one it is very shiny

So me pulling a camper of 6200 lbs in my 2019 chevy silverado 1500 z71 trail boss my transmission got up to like 270 and check engine came on they replaced the torque converter and something else now yesterday I towed the same camper and got to 250 but truck says u can haul up to 7000 lbs what is really going on and this was only a half hr drive

221 technically isn't overheating for that truck.

Don't get too the point yet i would like to know what you did last week

What mileage do you change fluid?

When the car is on Park "P" why transmission temperature dont decrease is still keep the same high temperature. My car is F150

What is the transmission temperature should be at when it’s hot???

I have a Chevy suburban 2013 and the transmission fluid goes up to 205F.. that’s normal? Help please.. thanks!

I have a 2007 suburban ltz and my trans temp gets up to 227 -237 is that Normal?

Yup ... Pesky transmission thermostat ..... Gtfoh lmao .... 220's are fine if for a short period ... Straight shot from NY - NC in a 2015 silverado 2500hd hauling a 3000lb boat with a bed full of shit as well as 2 other people and dogs and stuff in the cab .. yea may have seen the 200s breifly when I decided to take a detour through DC but 220 is not overheating it .....

my 2016 silverado is heating up to 270 - no lights or issues happening but I am bringing it to the dealer to look at it. I also have an extra trans cooler

I took my 14 Silverado to GM about my transmission slipping between 2nd and 3rd gear they told me they just got a bulletin from GM they know about the issue they told me to put it in reverse before I put it in Drive to purge the air out of the transmission does anybody else know about this issue

What’s the transmission fluid temp should be at ? Normal drive ?

What was that Facebook page you mentioned?

Turn the music down cants hardly hear you

my 2009 silverado, i pull 2 tons on a 16ft trailer, the temp goes up to and sometimes maintains 230f even 240. its been like that for years . is that bad?

What’s the name of the Silverado group?

Whats the name for the FB page?

You need to edit this shit

Pull over and let it cool down .

If you would have just got to the point I'd have watched to the end.

You need a transmission fan