What Is The Noise Coming From This Toyota Tundra!!?? 

Definitely sounds like the A/C compressor. Sounds like the clutch is slipping before engaging.

I think it's the govenor cut-out switch/sensor to the compressor. This happens when then the AC has been over filled. The govenor will cut the compressor off to prevent a pressure blow. This happened with my 2012 tundra and all it needed was a good vacuum on the system with the correct amount of refrigerant.

I would call Japan Toyota engineer department and informed them the problem. They need to hear these problems so they can be corrected and pressure these dealerships that are not going the extra mile to make a good name for Toyota. I believe you sell a good product, you need to stand behind it 100 percent.

I went threw all kinds of crap with my 4th tundra in the end they fixed it . You may have to call 2 times a day to get your way and don’t be shy on being abrasive or giving up . Tell em how it is ! Or be done and trade in now 😉hope this helps Toyota is starting to be a disappointment.

I have a 2019 that does the same thing. Only happens after sitting at least 24 hours. I haven't taken to the dealer yet because they'll tell me the same thing they told him. I've seen others on forums with the same issue. Some have reported that Toyota replaced their AC compressor as a result.

Sounds like the compressor is kicking off on a high pressure switch. and shuttering and restarting.

Finally got someone to hear the noise after years of pestering them about it. Confirmed it is a bad AC compressor. Replacing it under warranty.

My new 2020 did this exact noise, but only once. It had been sitting for a week. I turned on the A/C right after start-up. Loud enough that it really startled me. I agree with others, I think it’s the compressor clutch chattering or dragging on engagement. I’ll be watching mine closely.

My 2017 has never done this but I’ll keep an eye out for it

Time to go to a different dealer or request / demand the regional Toyota warranty manager review the issue. Document everything make sure they writ it on the service request including their refusal to keep the truck and duplicate the issue. If all else fails contact a lemon law attorney - time for Toyota to step up. This and other quality issues are popping up all over including eliminating the oil cooler. I’m waiting for that class action suit to break.

I have the exact same issue. Just like he states it happens, it happens to me. I’ve looked at forums as well and many have the same issue too. Exact same noise. I have a 2019 SR5 CM. I tried to show the techs and the dealership but of course it couldn’t be recreated. We need to find out what this is. Sounds ugly!

Bought my 2020 tundra about 6 months ago, and this b.s. started about 2 months in...im getting the same runaround with the dealership, im about ready to walk in there and show them this video lol

Holy Cr..p, Im glad I stumbled on this. Ive been in my 2021 TRD Pro Tundra maybe 3 months, and I just experienced this! This is accurate in the sense that it is hot, ( Florida) and sat for 4 days outside in an airport parking lot. I turned vehicle on, turned on AC and whoosh, got this sound. I will take this to toyota now that Im reading these comments! Huge thanks to everyone and the person bringing this up and recording this. Now if I could fix this wind noise at higher speeds, The seals on this thing are horrible.

I appreciate you getting my issue posted for me. I mentioned/asked the shop manager about the compressor when I took it in and he said it was possible, but couldn't be certain unless he hears it himself, which never happened. I'll keep on them and Toyota about getting it fixed. Thanks everyone for the input\info.

Hello I just had mine fixed by my dealer, I bought a 2020 Tundra in January 2020 and whenever I started the AC right after I started my truck in the morning I would get a very loud bang. After about a year (due to covid) I was able to record the issue. I sent the video to my service guy at Toyota and I left my truck a Saturday and they recreated the noise on Tuesday. Turned out to be the clutch on the AC compressor.got it back on Wednesday. Truck no longer has the issue. Hope this helps.

I have a 2020 sr5 and it happens exactly the same thing as described, and when the ac is turned on sometimes it feels like you hit the truck from underneath with a big rock or something, I took it to toyota but of course they wanted to recreate the thing when i told them it only happens once it’s turned on and I already had it on so of course they couldn’t recreate it!I think it’s the compressor kicking in but somehow after sitting for a while , it sticks and that’s when you can hear the grinding noise

Sounds like the clutch in the A/C compressor

If it’s under warranty, That’s ridiculous, call the Toyota 800 number & start a case immediately and don’t take there bs . It’s a mini court of Toyota. Make them fix it or trade in . I wouldn’t put up with the dealer answers , call the 800 number everyday till they respond!

I have heard this once or twice myself. It made the truck shutter the first time i heard it! But I was distracted at the time and dismissed it. At that time it had about 1,800 miles. My 2020 TRDpro that was purchased back in December and currently has 3,100 miles. I only drive the truck on the weekends. I will be paying more attention to this. Please post any results that receive from Toyota. THANKS FOR THE HEADS UP!

From Sacramento California, same issue for my 2020 tundra with 10k miles. Only happen once on a cold start turning the a/c on or having it on before starting the engine. Outside temperature don't need to exceed 100 or above.

I noticed the same issue on my 2021 tundra when sitting a few days. I also get the noise with or without the ac on. Meaning just when starting the heat after a few days in cold weather in the upper mid west. I even tried driving about 500 feet before turning it on and it actually was enough to slow my truck down for about 2 seconds then resumed full power. Not sure what it is but it’s not just the ac. It appears to be related to the entire climate control system.

Had a 2017 5.7 that had no issues, i traded it in for a 2020 trd pro, I'm having this same issue with the ac/starting truck up. It's startling at times. Sounds and feels like a metal on metal crunch/bang. AC in the 2020 takes much longer to get as cold as the 2017, which was like an ice cooler. I should have stuck with my 2017...smh.

It could be the idler pully or compressor bearing

My 2020 did that a couple times. Doesn’t do this all the time though

I have a 2018 toyota trd sport 4x4 crewmax, I had that same problem after leaving my truck for about a day or 2 without starting it. I took it to my toyota service center and had to leave it for 2 days. Then when they did start it they said they heard it but it wasn't long enough to decifer what or where the problem came from. So my service guy said if it starts getting worst sounding or something not working on my AC call him. So they have it on file if anything happens. It still happens after I haven't started my truck for a couple of days but it hasn't got louder or worst sounding.

Compressor clutches have to be set to correct gap. If the gap is too wide it will shudder and make that clap sound. After a short time of operation the spring tends to settle and narrow the gap therefore it doesn’t make that sound as noticeable. The hub of the couch has thin shims that look like washers. In the compressor overhaul manual it’ll tell you what the gap should be. At least that’s how some were and might still be.

Add bass and a rhythm section and you've got yourself a real toe tapper................!👍

I have not heard my 2019 make this noise, and I hope it doesn’t. That did not sound good. I hope this gets resolved for you.

My 2020 A/C compressor has done this a couple of times. I experienced it our other Toyota and was even more common in my old Frontier. It's was a bit annoying but reliable.

New truck , inexcusable. Call 800 tonight !

2017 Pro here, no sound like that, and lately ive gone a week or more without driving my truck. However, I had an old Pontiac that did something similar, and it was because the system was OVER pressurized, and when you turn on the compressor, the excess pressure made it harder to start. At least worth a look at the pressure level. Or it could be there's not enough lubricant in the refrigerant, and its sticking. I would push the dealership to at least empty and refill the system.

A/C clutch on the compressor sounds like imo.

Hey Tundra dude have me a sound question also. Was having problems with my secondary air valve stuck open, also a couple o2sensors bad. The o2 s have been bad awhile so that’s not it. Main reason for hanging part was had to reset code to often because throws truck into limp mode. After changing part everything’s was great even took it 4 hrs away to a lake during memorial weekend. Several days later was on way to get oil change tire n rotated but on the way the was making a horrible sound which seemed to resonate from passengers side wheel area, and mainly during acceleration. Sounds like blowing air thru some kinda metal tube, like if you were blowing through a medal fence post. Truck runs but seems to be getting worse gas mileage/efficiency. Thanks for your and an6 else’s help out!!

any update on this as I have the same thing going on in my 2021 but it just started here in Minnesota in late November (meaning cold and no AC on???)

Sounds like the compressor is going out

2019 limited with 50k miles. I have never heard this sound and live in Texas, so I start with ac on most of the time.

I have been hearing very bad grinding noise on my 2020 1794 with only 6k miles on it every single time that I press the breaks. I take to Toyota dealer and the answer was the same as they give Michael. Since the dealer can't help with issues. I'm thinking about trading this truck before too late.

I'm 100% on the clutch being the culprit.

My 2019 camry does the same thing. That is a harsh A/C compressor engagement. I took it in as I had a minor oil seepage on the high side block cut out sensor and shraider valve area. They vacuumed it out measured charge and oil removed. Told me it was good but I'm sure they added a tad refrigerant and oil as it hasn't made the noise since. If it sits the oil in the compressor and lines drains down a bit and are not under pressure and suspension to lubricate everything. I would definitely have it evacuated and check the refrigerant and oil amount. If its under warranty insist they do it. FYI make them print out all the TSB's for your car or truck. The STEALERSHIPS will never tell you about these and are not required to tell you possibly costing you thousands in diagnostics and repairs .

My new 2021 1794 does the exact same thing. Also making a terrible whining noise audible in the cab on acceleration. I thought wheel bearing, differential etc any ideas would be helpful

i just recently had this problem an from what the toyota service depart told me there saying is an engine mount problem

I had a squeaky noise in my truck once, it was my wife.... But yours sounds like compressor or pistons swapping cylinders

I would like to hear your take on blue tooth on tundra and iphone 11 problems

Happens to my 2020 it's very common do u think it's covered under warranty? Someone said it's the a/c clutch and I agree

Bump up to all who said refrigerant low issues. On Toyota the do that by design possibly to save the compressor (vice running continously without coolant which is also a lubricant to internal compressor parts) and make the mechanic look at refrigerant levels noticing the obvious click and clunk! Mine (2009 toyota tundra 5.7), did it years ago and I charged my system and no more issues!

My 2008 Crew Max Limited 2WD does this about 4 seconds after roll away. Always has. Never thought anything of it. Only have about 45k on the odo.

Where in Southern Cal....I live near Palm Springs in the same heat, and my 18 has never done this. Sounds lie the clutch in the compressor...either mechanical....or not getting proper signal. I go to Toyota of the Desert.

Have a 2020 Tundra and made that same noise multiple times on different accasions a week after purchasing. It only accurses when I turn AC on.

Mine does the same thing it’s the AC pump engaging mine does the same thing after sitting for a day or so after you drive it doesn’t do that anymore unless it’s sitting for a day or so I have a 2018 Limited

2013 sequoia top end engine noise sounds like timing chain or tensioner is this common please help

Take a video of it looking at the actual ac compressor/clutch so we can see what it’s doing when it makes the noise.

Yep I never turn the truck with the AC on. It doesn't do it alot but in the heat it's more often it'll stutter. But she's running like a dream at 252,000

Hey Man, I have tacoma 2018 and this summer started to do the same thing, I'm pretty sure it gotta be the compressor, probably wearing out...

Ac Compressor clutch engaging is the sound I like.

Lol Thats one weird noice It may not be a/c It drains power on start,engine starts on higher rev especially after a day It drags other pulleys on the way(water pump/steering/alternator etc.. I would start with resetting the ecu (Disconnect for 5-7 munutes then reconnect +)

my 2020 trd pro has done this same noise with the ac at startup since I bought it...ive wrote it off as normal at this point

My 2018 SR5 Crew Max does the same thing, but only after sitting for a few days.

My 2019 tundra does this,but so did my 2013 tacoma.

I don't know what it is, but it don't sound too good. Better take the dealer the video and let them know if it only makes the sound when the a-c is on the problem must be the a-c.....so get your a.s.s. motivated and take care of the problem fellas......................or I won't buy another from you.........no way no how no mo..............

I’m not a mechanic or know anything about vehicles but that sounds like a compressor

My 2019 has the Exact same problem/noise and occurs exactly as described.

A/c compressor or fan clutch

My 2019 Does the same Exact thing .

Im keeping my 2017 .

Just off subject. Is it me or does the Tundra sound really loud at idle compare to other trucks?

sounds like your compressor clutch is bad or idler pulley

Mine also makes a noise when the engine is cold and I turn on the AC. It is being checked out on Friday, I will report back here. It sounds like a clanging noise, like the AC pump is loose possibly. Does not happen when the engine has been running.

My 2021 does it.I haven’t been to the dealer yet.

Not related but that red older pickup in some of his videos looks amazing!

Sounds like the next recall notice. LOL

Hook up a pressure gauge on your low pressure hose and make sure it's not over filled.

Definitely A/C clutch engaging and disengaging. Either bearings going bad, low refrigerant or compressor going bad.

No issues with my 2019 TRD Sport 5.7. It sits a lot in garage and only has 3700 miles on it. When I do drive it I have had the air conditioner on 95% of the time.

I had this exact noise occur a couple of times I was suspecting it was coming from the blower fan located behind the cabin air filter maybe try to re create it with the glove box open to see if the noise is coming from there, just a thought maybe.

Normal mine does it. Ac clutch engaging when on high idle and a bit of flash rust on ac clutch after truck has sat

It sure sounds like the AC compressor

I think the A/C compressor doesn't getting enough pawer, Try to replace for a new one

I have a 2018 TRD 4X4 with 19k miles and I have had the exact issue with noise when doing the exact steps, at the same times as yours, to the tee. But no one knows anything?

Sounds like a over charged ac system or bad clutch engagement or bad bearings

TROY IS CORRECT,IN THE VIDEO YOU SEE THE CLUTCH ON COMPRESSOR STOP AND ENGUAGE AGAIN,MIGHT ALSO INDICATE LOW FREON,EASY TO CHECK,BUY A GUAGE AT ANY PARTS STORE,BUT IF UNDER WARRANTY GO TO DEALER,LET SIT 20 MINS,OPEN HOOD,GET TECH AND START WITH AC ON,COMPRESSOR STOPS AND REINGUAGES THEY GOTTA SEE IT.

My 2021 does the exact same thing.

Hey tundradude I bought a 2021 tundra limited with 3 miles on and the exact same noise started happening at 1000 miles. Is there any update on this?

I have the same problem here 2019 toyota tundra

Maybe thats the ac clutch engaging?

Sounds like a/c clutch engaging then disengaging.... 🤔

Can you explain this noise coming from my brand new 2023 Tundra Crewmax SR 4x4. I have owned tundras since 2009 and never encountered this noise before. When putting the truck into gear or back in park I get a noise that sounds like something is hydraulic raising or lowering but the truck doesn’t move up or down. When I figure out how to upload the video I will.

I HAVE A 2006 SEQUOIA WITH A VERY STRANGE, INTERMITTEN COLD START VIBRATION. IT ONLY HAPPENS AT FIRST START, AND CAN RANGE FROM VERY SLIGHT, TO INTOLLERABLE. I FEEL IT WHEN DRICING BETWEEN 20 MPH UP TO HIGHWAY SPEEDS. UPON RESTART OF VEHICLE AND RESUMING DRIVING, THE VIBRATION IS GONE. IS THERE A ELECTRONIC MOTER MOUNT OR SOMETHING? IT IS MY WIFES CAR, AND SHE IS GOING CRAZY OVER THIS ISSUE.

It’s the clutch on the AC compressor that’s making that noise when it kicks in because the engine is in high River when you first start the truck and the AC comes on the same time

I would say to replace the compressor.

My 2020 is doing this

I have the same problem

Sound to me like a/c compressor clutch engagement issue

That sounds like something bad is going to happen. Good luck with it.

Push Toyota like static punch 🥊. Then they’ll fix it

Solenoid engaging on airconditioner pump. Over time it has got more slack in the engagement plate and creates that sound! Dosent do any good to repair it now because the part comes with the pump could last several years at any rate it isn't going to go out anytime soon just annoying!

It’s just purging moisture

The Tundra AC clunk is perfectly NORMAL, there are literally hundreds of people that have experienced this on Tundra,com! It ONLY happens when you start the AC when the truck is cold. It is caused by the AC clutch kicking in.

That system has to much high side pressure and that is a compressor releive valve.

AC clutch

My Tundra did the same thing