Gates Timing Belt Noise! Idler Bearings or Belt?
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- Опубликовано: 26 апр 2015
- After approx. 8-9k miles I started noticing a noise from behind the timing belt cover that sounded suspiciously like a timing belt idler bearing that had gone bad. I had replaced all of the bearings with brand new Gates components shortly after I purchased the van. Unfortunately I didn't have the garage space or the tools to further diagnose the issue so I had to take it to a shop. The shop (Toyota) initially agreed and though it was a bad idler bearing but after further investigation found that it was just the timing belt itself that was making noise. They found nothing wrong with the belt itself or the way it was installed. In the end I had a brand new Toyota timing belt installed and as of now no noise from behind the timing belt cover.
Noise starts at 3:10
Had this noise on my 2007 Toyota Highlander 3.3 after belt, water pump, idler, tensioner. I replaced the Mitsuboshi belt that came in the kit, with a Toyto OEM belt. Several hundred miles, so far so good!
@1lifejourney , you have no idea how relieved I am coming across this video of yours... I searched high and low for words like "engine ringing noise" , "water pump" , "tensioner" etc... Good God.
I just changed my timing belt to GATES Micro-V, few days back.. And my car have this damn ringing noise which can be heard even in the cabin! It's not gone even 100km yet!
I was so worried it was the tensioner, bearing, or whatever... Even brought back to the shop and the mechanic boss said it was fine. But never did he tell me this belt has this sound. NOW I know.... And who would have knew that the BELT could cause such a high pitched sound!
Bless you for posting this up.. At least I now know it's not an issue with any other parts of my engine/belt/alternator area... BLESS YOU!
The good news... Your bearing is not about to fail and break your engine, your cam bearing is not grinding away, nothing is broke. I have this same issue, with a Toyota belt currently. Has been off and on for a year. It really does sound like grinding metal or a bearing grinding away. Turns out it is very common and from what I have found, not something to worry about. I have not come across anyone yet online that had this issue and then had the belt fail. Many have had the issue for years and no problems, taken to Toyota mechanics and was told it is pretty common, is the belt making the noise and is ok. There must be some kind of interaction between the belt and pully that is causing a resonance of some sort, like when you rub a wet finger around the rim of a wine glass causing a high-pitched ringing tone. I chased this noise down expecting a failing idler. I took the cover off and inspected everything. took the tension off the belt and free spun the idler, and inspected the cam pulley to make sure it was not maybe rubbing against the packing plate of the cover, my cam bearings are in good shape. Isolated the sound to the area of the forward cam pully. I used an automotive stethoscope. When I put the probe on the metal around the pully, there is no squeal, just the typical loud rumbling hum of the bearings turning/moving parts. the squealing sound is only heard with your ears in air. The belt is putting out some kind of whistle that sounds like metal on metal squealing. I inspected my belt carefully, looks brand new, no abnormal wear, all edges still crisp and sharp, no metal filings, no dirt or grime, no rubber dust all good. I just wish I knew how to stop the squeek without doing a whole timing job again. But, super relieved it is not something breaking.
This is the same issue I have been going thru with my tundra. I was thinking the belt or the tensioner. Thanks a bunch!
Thanks for posting! I've been chasing this noise on my Sienna for a year now and have replaced the timing belt and all the bearings 2 times (Gates both times). I will do it again and see if a new OEM belt will fix this issue. Again, very helpful that you posted this.
any update?
Update???
@@paulj5263 I left the gates on and it is still going strong 30K miles later. OEM will be put on after 50-60K miles
HI,
Love the vid.
This is exactly the noise I was chasing in my daughter's MCU26 (2006) Highlander (Kluger in AU) V6.
I took both drive belts off (A/C, p steer & alternator) and ran the motor- still had noise.
I took the top cover off the timing belt. The noise was more obvious but not specific to the idler which is in full view. To test it I got a spray bottle with water and lightly sprayed water on the timing belt (outside surface) with the motor running. After spraying for a few turns the noise stopped and the engine was a quiet as a mouse. Hence it is the belt.
--> So here is a method to see if it is a bearing or belt.
thankyou so much! people like you make the world go round with knowledge of this sort. This knowledge is literally my lively hood for myfamily to ensure we have transportation to work. may the universe and god bless you for taking time to make this video
I installed a complete gates timing belt kit on same 3mzfe engine. No noise at all. Working fine. Lot of mechanics have concerns about it on toyota but they dont realize their mistake
man you saved me a lot of hassle, my lexus has the same issue, glad to find this video
bro which brand of belt your have? i have rx330 and i uses mitsuboshi belt
I replaced with Gates belt few thousand miles ago and now I am having the same noise XD Thanks for the very helpful video!
any update on your car? did you replace or fix it?
@1lifejourney, did the noise ever come back with the Toyota timing belt?
I just did the same thing and have the same problem so guess I'm putting another belt on it. Thank you.
I've had this same exact sound on my 2003 Avalon with a 1MZ-FE engine. There were lots of opinions on the internet about what was causing the noise. I first replaced the tensioner, but that didn't help. Today I removed the top plastic timing belt cover and just hosed down the belt with a carburetor cleaner spary. I emptied the can with the engine running all the time. So far, the noise is gone. I know you have to warm up the engine before the noise appears. My timing belt was a Toyota OEM and it has about 16K miles on it. The car has 94K miles on it. I wish my mechanic would have replaced both timing belt idler pulleys when he did the job. He replaced the cam seals, crank seal, timing belt and water pump and gasket. Your video really helped a lot. Thanks.
This may not be a permanent solution. I'm starting to hear a little bit of the noise come back now, but it isn't near as loud as it was before the cleaning. This is really a mystery to me.
Nah, after a few weeks since the cleaning, the timing belt noise has come back. I'm not going to worry about it anymore. There was a poster on Toyota Nation who said his 1996 Avalon just hit 400,000 miles, and he never changed the timing belt! Thank you very much.
if im not mistaken 1mzfe is non interference...so if the belt gives up just have the car towed..the engine will not be messed up they say....replaced my 1999 camrys tb 3k miles ago and starting to hear the same noise
@@craigcoffaro5135 ever figer out what the prob was i have the samr car
bro, id NEVER EVER do that! 1st off the chemicals in the carb cleaner can damage the belt and its rubber and 2nd, that spray will start to dissolve all the grease Inside all the idler bearings and pulleys....really bad idea! you could cause premature timing belt failure and almost certainly will have to replace those idler pulleys soon after
thanks for the update, I'm a little scared because I just put a gates timing belt into my 05 Sienna, but didn't you say in your timing belt video that the noise was there BEFORE you put in the gates timing belt? I could go back and check but pretty sure, and if it was, wouldn't it then be something else?
I have done a few Toyota 3.3 timing belts. I always do the water pump. They can be a pain on these engines, if you can't back the studs out. The metal backing plate, behind the timing belt can easily be tweaked, and it will cause rubbing noise.
True. If you get too aggressive at bending the third cover to get the pump out, you can bend it and the idler roller will rub against it.
I've had similar issues with cam/timing belts over the years. For timing belts with manually adjustable tensioners, I have managed to play with the belt tension in tiny little increments to dial out noise to practically zero. Some of these aftermarket belts are really sensitive to tension and also the surface finish of the gears. Sometimes it pays to slightly scuff the surface of the gears to take the gloss off them if any. Not sure why this is... but it's very annoying!
I agree . Chrysler 2.2l from 80's comes to mind.
I am sure Gates are the OEM supplier for a lot of vehicles - I see they are the most costly belts when looking on parts websites. Noise issues are hard to track down without replacing lots of parts - could be tensioner, contamination etc ...... not easy stuff to diagnose. Suggest one of the Toyota message boards.
When I hear those type of noises, I hit outside belts and accessories (alternator, ac, ps pumps) with wd40 to eliminate the outside before I contemplate the “inside”. If you suspect engine internal issues, I get a long handled screw driver putting the metal tip to the engine block and put my ear to the plastic end of the driver to pick up noises.
did the noise ever come back i have a lexus es 330 exact same sound changed the idler bearing water pump idler pulley same sound but now quieter smh
I have same issue w gates timing belt on 2001 toyota highlander v6. I'm a mechanic >20yrs. My vehicle my install...aprox 20,000 miles...I am going to Toyota for parts from now on. Car care nut very informative also.
I heard that Gates was using parts made in China, so I ordered an AC Delco kit and voila, it came with Gates parts. Both the Timing Belt and the Water Pump were made in China and the belt makes an odd noise similar to this video. Lesson learned.....know where your parts are made.
@1lifejourney Thank you for sharing!
How much warranty did you get from TOYOTA?
So that’s the way they’re supposed to sound afterwards? Mine sounds like this and I was going to start going through testing it. It’s so noisy...
Same sound same brand i use gates belt in my van toyota sienna 2005 , still working i run 40000 km .
I have a napa belt on my car is it a gates its only got 5k miles on it if u spray some water on it it gets worse
I got the OEM parts.. No more noise. Maybe it has to do withthe belt rubber formula?
replaced my timing belt about 3k miles ago and stared hearing the exact noise....timing belt i used was mitsuboshi which i believe is same as the original.....when i push the plastic cover inward the noise is becoming less....tightened the cover bolt and the noise went away....after two weeks there is a bit of noise again....if im not mistaken the noise started when i used an upholstery cleaning chemical, from dollar store, to clean the top part of the engine
hey bro same belt mitsuboshi on my rx330, making same noise, and updage on your car?
@@vplacio i removed the cover so i can spray water while the belt is making noise, and the noise is going away.....so it means its the belt and not other mechanical parts.....others say its ok.....me im not so afraid even if it snaps because my 1mzfe is non interference
Same issue any update? Can you just leave it and deal with the noise or should I be concerned?
I changed timing belt on my 98 Lexus ES with Asian belt M pump and the original belt looked fine, I should of just left it alone! Those oem belts life is underestimated. Mine had 140k original belt looked ok!
What is the typical noise fix on these Yota’s??
Ive been chasing the same noise too! Timing belt was recently done too
got my belt replaced 3yrs ago with the last owner, and i hear same noise on my rx330 3.3, who’s cars holding? did you replace the belt?
i have an 03 v6 3.0L 1MZ-FE making a similar noise can i just leave it like that? i do have 286000KM's on it i know the belt has too be done at 300000KM's and the engine is non interruptible.
Toyota’s are picky but with OEM Toyota parts they will run well. Their quality and design is far superior to anything an aftermarket brand tries to imitate. Did your noise come back? I have this same noise it’s so annoying!
My timing belt is doing that on a 1mz-fe Toyota Avalon V6 is it safe to leave it as it isn't due to be changed.
Same issue now with later PSA engine Citroen/ Peugeot using gates belt swapped to different manufacturer silent didn't change anything else. Happened twice now.
Toyota 2005 3.3 L less than 15k since last belt replacement. Exact same issue exact same noise, replaced idler no difference, replaced tensioner brg no difference, replaced belt...noise gone. It was a gates belt and I had a new gates belt so that is what I used.
It's not the new belt or the pulley, it's something that is loose under the timing belt cover, check for other things. It's a metal rattling sound.
No, it is the belt. I have gone through the entire system with a fine-toothed comb and mechanics stethoscope, even checking the cam bearings. This is unfortunately a common issue. Not sure of the science behind how the belt creates the noise at the front pully but somehow it does. But does not seem to cause any damage to the belt itself or other parts. I know you hear that and you think for sure this is metal on metal, this is a metal grinding sound, but somehow rubber on metal-toothed pully is doing this. People that spary watter on the belt find the sound goes away for a minute. People that put on a different timing belt makes the noise go away, if it was something loose or metal on metal these things would not make the sound stop.
Is it fine to dive like this?
Noticed this same noise on my 05 sienna. Same noise. Only at temp. I had replaced the timing belt 6 years and 42k miles ago with a bando brand. So now, I just bought an 07 Highlander and today noticed it making the same noise but more noticable and can hear it inside the cab.
Toyota service records show drive belts and timing belt replacement 10k miles and 2 years ago. The drive belts are Gates brand. So I don't know if that is what that dealership stocks or what. But I'm betting it's a Gates brand timing belt in there also.
A lot of brands seems to say they're a OEM supplier. Not sure where to go from here...
Took it apart and found red dust all over, especially the tension and idler bearing. Timing belt was Toyota not Gates. Same noise, bearing issue. Replaced rollers and new belt. No more noise.
got the same noise from a mitsuboshi timing belt.....when i spray the timing belt with water, the noise go away.....at least im sure its nothing major
Sounds like you need to adjust the tension or the pulleys need to be aligned.
I have had this very same exact noise for a year now from my 1mz-fe. Changed the pump bearings, tensioner and belt,( Mitsuboshi belt), TWICE, and noise is still there. But if I spray water on the belt, Voila! silence for an hour or so. I am going to do the job again , this time OEM Toyota belt. Despite how it sounds I'm convinced the problem is with the belt itself. Fortunately it has no effect on the engine performance. Maybe its the surface finish of the belt or even the printing on it , who knows? The original belt was TOYOTA of course, and no noise at all. Will report when the new belt is installed.
Same thing here! Keep us updated
@@petayV8 So as an update I can say that the belt was the culprit. but I went ahead and got a new tensioner and idle bearing. All is quiet now and has been so for the last two months.
@@wayandy thanks a lot for the update. What belt did you use? My timing belt was done in 2017 so I'm just going to put up with the noise for for another year and get it done at the 6 year mark. The dealership did the timing belt last so I'm surprised they didn't replace bearings etc.
Has the noise returned or is it still quiet? I have the same issue, first with Mitsubishi belt then with Toyota EOM belt. Pulleys, tensioner and water pump were replaced. Noise came back after each belt replacement. It can be heard only when the engine is at operating temperature.
i have rx330 with same noise i got mitsuboshi belt installed, im a bit scared, any update on your car?
@@vplacio My mechanic opened the timing belt housing and sprayed some water inside. The noise disappeared temporarily. This was interpreted that the noise is a result of the interfacing of the belt with the sprockets, i.e., if it were related to the pulleys, etc., it would not have gone away. This reassured me somewhat. The noise is still there after a year or so, and I continue to drive the car. Nothing has happened so far. I do not know if this situation applies to your car, but I hope that this information is helpful to you.
Mitsuboshi belt here. AISIN kit (Toyota OEM for a lot of things). Maybe got 3k miles and this exact noise started. New seals, idlers, and water pump too.
Really not looking forward to pulling it apart again if the silly belt is the cause after all. Sounds identical 😭🤬
i got rx330 3.3 engine just got the car, last owner replaced the belt with mitsuboshi belt and have the exact same noise i even hear it in the cabin area, any update on your car? are you going to replaced it? it is too expensive
My highlander is making the same noise and I put an aisin timing belt kit on it...
So is it okay to drive with that noise or is it not a good idea? I have a 2001 Hyundai Elantra and I just got my car out of the garage and it is now making that noise, I did not have work done to my timing belt either, so i am concerned, does this mean I should have it looked at or it is nothing to worry about? The belt was changed before I bought the car but I have had it for over a year and put 7,000 miles on it, so wondering it might be worn or it the garage messed with my car.
Did you get it fixed?
Similar situation - 2006 Toyota Solara 3.3 V6. Complete Aisin/Mitsuboshi timing belt kit replacement (except for seals) by local shop. 5000 km later, same noise when car is fully warmed up. Will update my comment if I find out what's up...
I have exactly the same issue. Any updates?
any update bro?
I got this issue after installing a Toyota made in USA belt from a Toyota parts department.
Bingo! That is the noise my 2000 Avalon is making after having new belt, water pump, tensioner, bearings, cam seals, crank seal put in. I finally on a 92 degree day removed the timing belt cover to diagnose what is making this crazy sound . Upon inspection everything looks good no oil, no belt shavings, no crust from coolant, just a loud ringing and belt noise. So I squirted water on the top of the belt two squirts from a spray bottle and the noise stopped! So now what I guess I have to wonder will this be ok or will it get worse. What ever this is BS all this money and parts and here you are! My solution drive it till it blows it sounds like an old time sewing machine running at high speed!
It not the belt, it the spin bearings that goes around the belt.
Just did my timing belt with a continental pro series plus kit and THIS EXACT noise came about on my drive home
Legit tightened everything to spec and this noise screams at idle / operating temp
Taking it back apart tomorrow to see what gives if not im throwing the old timing belt back on it only had 70k OEM made no such noise
I changed it out due to some cam seals leaking pretty bad
Redid the job today with a new OEM timing belt and noise completely went away thus far will update as soon as i go a few hundred miles
Ready to fight whoever makes these continental belts this job is a huge pain
OEM TIMING BELT was the fix🙏🙏🙏 i really think anyone who said they tried it again with a OEM belt got some Chinese replica Toyota belt from eBay
Thank you for making this video
update bro? still make no noise?
No engine light either
I've changed my belt twice in the last year due speaking now it's doing again, next belt will not be a gates. I also changed all pulleys so that isn't the problem. gates belts suck
D Larsen s
Any update?
I have the same noise on my 03 Avalon been driving it like that for about 40k miles hasn’t gotten any worse or better on a hot day it’s louder A cold day it’s quieter. It is just the belt I sprayed it just a little bit with belt conditioner and it stops for about a month and then comes backI have given up with it I will drive it until I need to replace the timing belt again with the nose
We have an 00 Avalon that is making the same noise for Idek how long. Even after we got the timing belt done. Oh well 😂 hasn’t gotten worse.
Cars Daily I’m at almost 200k miles on my car now with around 40k on the belt same noise still No problems yet I work in the automotive industry I have actually seen some older Toyotas come to our shop with the 3.0 L engine that is in my Avalon and I have noticed that their timing belts are making the same noise these older Toyotas are very funny about what kind of timing belt is put on the car when I first got this car it had a factory belt that said and Toyota on it didn’t make any noise
leonard drone view yeah they are, our Avalon has 290k miles so I’m not too concerned 😂
Cars Daily wow what year any problems yet
leonard drone view Issa 2000, literally no problems.
I'm calling BS on it being the timing belt. The pitch of this noise is definitely the cam sprocket. I've bumped enough metallic tools into them and recognize the "ring" produced. You probably had a few bolts come loose from the third cover and caused it to rub on the sprocket.
I believe your comment comes closest to explain this phenomenon. I have the same issue with a 2007 Toyota Camry Solara Convertible with the 3MZ−FE V6 engine. Although the car had only 48K miles on it, because of its age I had the timing belt and the associated accessories (Aisin TKT-026 Kit) replaced by a reputable mechanic shop. I noted a chirping/squeaking noise in the engine compartment on the passenger side. This happens only when the engine is at normal operating temperature and not when it is cold. After doing some research, the mechanic felt that this noise came from the timing belt, which should be replaced with an OEM belt. This was done, but the chirp came back. I loosened the bolts of the upper timing belt cover and traced the gap with a stethoscope. It appears that the noise is loudest in the area of the camshaft sprocket. Could you please elaborate on your statement "You probably had a few bolts come loose from the third cover and caused it to rub on the sprocket." Which parts are actually touching/rubbing and producing this chirp? Why does this happen only when the engine is warm? Lastly, in your expert opinion is this just "cosmetic" or is it something that needs to be attended to soon? - Thanks
I have this exact same issue. I've taken the top plastic cover off and it's definitely the cam sprocket.
@@BlueRage When I put a small amount of silicone lube spray on the belt, the noise goes away for about 5000 miles. So I believe it's something about the belt contacting the front cam sprocket.
saw another video when the guy spays the belt with water the sound goes away...makes me feel good knowing its not the engine internal parts :D
Jesus christ. That sounds horrible. The installation might be wrong. It also sounds like a shim or adjustments needs to be done on the Cams
Sounds like you have a noisy water pump
Sounds like you went to a crooked mechanic, the timing belt is rubber and will very rarely make that noise by itself typically it makes that noise because something is spinning, in your case one of the bearings on either the water pump the tensioner pulley or idler pulley was definitely bad so the belt was causing the Noise by spinning the component but I don't believe the belt itself was causing the compounded because you can clearly hear the metal grinding. I have a slightly similar noise of a bearing going out in my car unless it's a knocking sound but I think it's more of a grinding sound so I'm probably going to replace both knock sensors as well as take the timing belt off and check all the pulleys before I go throwing $1,000 at it to have a mechanic change the whole damn thing because I work and don't have enough tools or energy to get the whole thing done in a day and I need my car everyday
It's the belt... It's odd, I know. Having the same issue with an OEM belt. A quick spray of brake cleaner on the pulley stopped it for a day, then it came back at operating temp.
@@mcmoffitt not the belt. most common noise under the time cover is water pump and/or tensioner pulley.
@@automachinehead Replaced the belt and the noise stopped.
@@mcmoffitt no you didn't
@@automachinehead Since I know you are sitting down Mr. Arm-chair mechanic. The vehicle started off with zero issues; it just needed a new timing belt according to the mileage. The belts, pulleys and water pump were changed and shortly thereafter a metallic noise became audible after the engine warmed up. After a diagnosis, it appeared that the belt was the issue. A quick spray of brake clean or lubricant onto the cogged portion of the belt or pulley would stop the noise, however it would come back in a few hundred miles. The belt was then replaced with an OEM part and the noise was no longer. It was 100% the belt and it's a common issue on highlanders. Not the idler, not the pump... It was the belt. Now, get outside and discover that the earth is not flat.
Aisin
Always count the cogs.
Old vs New. Saw a guy on RUclips install a 193 vs 191 count. His SUV sounded like a stone crusher.
The parts guy pulled the wrong belt...just my guess.
I have my cover off currently, I do have my old 100K belt hanging up in the garage that still looks almost new. I am going to count the teeth and see if they do indeed match up exactly.
@@JohnNorris411
There is an old saying....trust but verify.
On my 02 4runner, at the same time I changed out the water pump, thermostat, seals ...cams & crank , along with the belt tensioner.
Bearing guides...too.
If anyone of those goes bad..you have to do it all over again. Save yourself lots of aggravation.
Was amazed at how much torque, the cam shaft bolt requires ....oh....get a new bolt from Toyota...about $10.
Easy, don't use Gates timing belt kits. The water pumps are garbage and the idler bearings are getting more and more common to be made in China. I had this issue with a gates timing belt on an ES300. Replaced with a Toyota belt and the noise went away.
I have this exact same noise on my Highlander after 10 k miles and it is Toyota Belt.
@@guildfordlaundry me too use a Toy belt after 12K i now ihave the noise and its annoying
@@mastera6999 Make sure you check all of your pulley alignments with laser tool. A lot of people forget to do that and when changing belts, tensioners, pullies, many times one of them ends up out of alignment and that will cause that type of noise, even with all of the new parts.
Easy method to find out if it's your timing belt or idler bearings. Take off the serpentine belt and run the motor. I think you'll get a good idea of your next step
No
Good grief Dude! that sounds horrendous! I hear a high pitched metallic sound but also another rubbing noise as well... it sounds alittle better after the fix...ive got gates belts on 2 different cars..ford focus and its fine, and a probe gt and initially, it was smooth and very quiet, but developed a pulsing drone thats been a nitemare to diagnose... i replaced the tensioner, the warped timing covers, harmonic balancer ect... still there! WTF is left? i had put in belt myself along with new tensioner and all pulleys... ive torn it down 3 times since to fix... checked the idler pulleys, they Seem fine, smooth and not noisy or dried out...short of replacing the belt itself,i dont know what else to do...are such things covered under the gates warranty? i mean, the belt works, hasnt shredded or snapped and bearings seem ok so would that still be warrantiable?
Run your engine for a couple min without your belt and if it’s still making noise then it’s internal if not then it’s your pulleys or your belt.
I changed my timing belt on 2002 Highlander. Now after about 10k miles, exactly same noise has started. My belt is Original bought from toyota dealer. Have a look at my video ruclips.net/video/pv6ws6BxVYQ/видео.html
What are your thoughts it might be?
Wrong. Noise before timing belt, changed and still noice..? Sounds like the timing if off somewhere and valves hitting the pistons. Car can still function as long as it doesnt overveat and expand the valves. You should notice bad performance or non if you ever try to gun it...maybe the sound went away slightly when you retimed everything with old belt. Thats just my guess
valves hitting pistons? no, valves are not hitting pistons and Continuing to run as a noisy engine!! when valves hit pistons, however lightly, its over and its rebuild time simple as that...if its a noninterference engine yeah timing can be off and engine will sound really horrible but the valves will not hit... but if its an interference engine, and timing is off and you hit valves, car is not gonna keep running, its game over
cant be timing i checked the top marks and they alinged did not check main b/c i did not take it off i used a Toy belt ran fine for 12K miles now the noise is sound similiar like this video. the noise does not start till it get warmed up
No it was the Pulley .they changed the pulley .a 20$ part for 450 .oo