Bad Idler Bearing/Pulley
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- Опубликовано: 17 окт 2016
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In this video I explain how to test a bad idler pulley
Disclaimer:
Due to factors beyond the control of Oz Mechanics, I cannot guarantee against improper use or unauthorized modifications of this information. Oz Mechanics assumes no liability for property damage or injury incurred as a result of any of the information contained in this video. Use this information at your own risk. Oz Mechanics recommends safe practices when working on vehicles and or with tools seen or implied in this video. Due to factors beyond the control of Oz Mechanics, no information contained in this video shall create any expressed or implied warranty or guarantee of any particular result. Any injury, damage, or loss that may result from improper use of these tools, equipment, or from the information contained in this video is the sole responsibility of the user and not Oz Mechanics. 
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**Want to own the tools I use ?? Click on the amazon link below to get my top 5 Tools I use**
Automotive Test Light- amzn.to/3z1Pdxa
Flexible Backprobe- amzn.to/3Pyr3zO
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OBD Scan Tool- amzn.to/3zaNWnq
Wire Piercing Probe- amzn.to/3OecWhT
There are so many useless videos in RUclips but you did a great work. Thank you for your effort.
Thank you for taking the time and effort to creating and uploading the video.
For those asking what the engine would sound like before and after: It sounds like this bad pulley except amplified and obnoxious, like a spinning can full of rocks. Mine sounds like an airplane while driving, intensifies with speed increase, even in neutral. After, I imagine the sound would be gone. My car is doing this now.
Yup. Going to try this and save $$$
Thanks for your video Eva Mobile mechanic who told me that I had a bad idler pulley & IAC needed to be replaced. So I get an IAC and idler pulley, I text him that I have the parts and no response for two weeks. Finally he messages back so she just got into town, he said it isn't the idler pulley it's the power steering pump pulley. So I go spend my police with the belt off and idler pulley has wiggle, just replace the tensioner so I know it's not that. The original noise. It was making was the sound of a rock in a can. I related that to a bearing, I'm not convinced that it's the power steering pump pulley. However, I'll replace the idler pulley as I believe after watching and asking questions in forums that it's the idler pulley. The reason I'm not so convinced about the power steering pump pulley is because I do not have the typical symptoms. I don't have fluid on the ground, it doesn't make a terrible noise turning the steering wheel. The only time it makes the grinding noises when I am trying to back into a tight spot and have it turned all the way.. any ideas?
would been nice to hear the noise before you disassembled it.
I no idk why all these guys do that
It’s like they are slow or something In the head we don’t wanna look at parts we wanna compare the noise
Blessthishe, when The Tensioner is Bad Take the belt off and Spin it , if the Tensioner Spins Fast, then it's Loose and your belt can Slip off also makes a Grinding Noise
Very insightful video. I'm hearing a noise around the belt and not sure what it is. Your procedure seems very simple, but often noobs don't know what simple things to do. Thanks for posting. Hopefully it's just the tensioner, at worst alternator.
All I needed to know was if the crankshaft should spin freely and you solved it for me .. thanks 😊
This is spot on bud! My pulley sounds like a bell is ringing and so it has to be that water pump pulley! Thank you for this !
Incredibly helpful buddy
Super helpful, subbed.
great video thank you for another helpful video.
al gutierrez thank you. Keep watching for more videos and share for support
@@OzMechanics What pulley would it be if the noise comes only when the AC is on
Thank you for your brevity & professionalism
Yup, its definetly my pulleys. Thank you soo much.
Awesome demo. Many thx
I would of liked to hear the noise of the engine before and after but good vid
What I was thinking but with out the good vid part 😂
Exactly. It's the entire thing I'm trying to find right now and for some reason no one thinks it's relevant to share the sounds the engine is making. 🙄
You would presume he would film the bad noise so we all can compare to our old bangers 🤣👍 nice 120 for my mondeo st full pulley kit no point changing one the others will come back to bite you
In the case of the 95 cougar i'm working on, the tensioner pulley has this grinding noise when "finger spinning"-- the noise, when idling, is very loud, grindy, metal/metal sounding. if you've ever heard a car that idles loudly, i'm told it's usually one or more of these pulleys gone bad. i'm replacing the tensioner and idler pulleys on the cougar this week.
It sounds like popcorn popping almost of the pulley clanking.
Thank you so much for this video help me out lots. Appreciate it
Great tip
thanx fo the vid..
Excellent video! Thanks!
Great video
ScrewsNutsAndBolts thank you for watching
You're welcome :)
Thank you.
Solid straight to the point💯
Thanks Jordon !! Try my best to make them as best as I can
Thank you!!
Wished I could of heard the noise also,, just put on a new belt,, wished I had known before I put it on,, but thank you for showing
Ill have to check this. Im sitting here thinking power steering or even fan clutch but now I suspect that pully. I have a very similar sound on my 2001 pathfinder.
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good info
Thumbs up! Good stuff!
Thanks for watching
Good advice. Thank you. If love to see a video on how to fix AC compressor.
Awesome. Glad you passed by Maurice hope all is well.
Nice video
You're right about the stethoscope method. Tried that and thought it was the alternator. Replaced it, and then spun the idler pulley by hand and realized that it wasnt the Alternator, it was the idler! Ugh.
GOOD TO KNOW.........
Just curious. What happens if one doesn’t replace the pulley. Will it eventually? Lock up? I’m changing my alternator and water pump this weekend. Gonna inspect all the pulleys. It’s a Camry 2010 2.5L i4 LE. With 190k miles.
Thank you
I like the video!!! Thanks!!!! I have a 2018 Chevy Trax thats making a noise when the car is idling i'm thinking its a Idler Pulley going out? But when I accelerate from a signal light or stop sign i can barely hear it only when i come to a stop I can hear the noise ticking chirping noise...
Are the tensioner pulleys supposed to spin freely?
sir good pm.id like to ask question about the noise on my car on 2nd and 4th gear coz teruble noise on there only on 2nd and 4th gear when is on running time.thanks lot if u give me idea
There is no noise. I've replaced the tension pulley and belt but the belt has come off twice. It's a 1990 ford xlt f150, straight 6.the bottom left pulley is where it came off.
Thanks
Yesterday I had a hell of a drive. There was a high pitched metallic grinding noise when I sat in idle. Then there was a burning rubber smell then my steering seized up. Apparently the idler pulley bearings seized and were rubbing and burned the belt and lost my power steering pump
Should a new idler bearing have angular (rocking or wobbling) play?
These pulleys are using bearings with C category internal clearance (larger than normal) to compensate for thermal expansion and slant (or tilted mounting) The new Gates Idler pulley with unknown bearing has larger play than worn and dirty NSK bearing in my 12 years old idler. Most bearings on the market are made to C clearance which in turn has very wide tolerances themselves. Moral of the story: used OEM part from the junk yard can be a better alternative to the new, nicely packaged, free shipped aftermarket POS from Amazon.
I have a 2000 Silverado (5.3 V8). Last Night I heard a God Awful Sound, knew right away it was a Bearing. No idea which one though. This Morning, the Sound stopped and I smelled a Burning Smell. Got to Work, saw the A/C Belt was gone. So, now it's hoping that it was the A/C Tensioner pulley that was bad and not the Compressor. My Question: What would cause the Belt to Snap? Could the Bearing being bad gotten so bad it Seized Up causing the Belt to get Hot?
My AC was broken due to a fluid leak. The AC seized up from the AC clutch engaging. Although the AC was off, it will engage in the defrost heat setting. I disconnected the power to the AC and it's been working fine for years now.
thx!
great tip, i had one go out also..
D. G. Thanks for watching and support.
Oz Mechanics
Good video thanks
helped me.
Hey there Aliens 👽 glad this video helped out bud.
Hello Oz, nice video, great content, I have question for you and maybe you could help with this. I have a Mazda Tribute 2008 4 cyl. I lost the serpentine and noticed that the top pulley was loose, so I removed it and say that the washer behind it was damaged (it's for the power steering pulley) according to a diagram I found online. The pulley is still good, not damaged. Would you know where to get that washer part without having to change all the pulleys? Many thanks, John
My belt keeps coming off but it looks good and the tensioner is tight on the belt. Would a failing or seized pulley cause this to keep happening. Did it twice now.
One accessory is "tilted" relative to the belt (pulley is not parallel)
If a pulley tensioner was bad when your car is running would it sound like a rod knocking or a lifter knocking something knocking
the beast from the east east answers
When I give gas the car makes noise like metal can it be the alternator?
Thanks for the video. How much time do I have once the pulley is acting like the bad one in your video? Will it get worse or louder before it falls apart? Thanks again.
Yes. They will get louder and louder
I know you can’t give me an exact answer, so if today is the first day that noise happened, do I still have a few hundred miles before it’s serious? Not risk sounding stupid. Thanks again for your time and patience.
Personally I would get it fixed asap
@@steveshih4622 I think they can extremely have several thousand miles before seriously damage. They just louder and louder. This pulley already get very very louder.
Whitch idler pully was that?
You should show how you took off the belt
Removing a belt is different on all vehicles. I would have to make a lot of videos explaining the different ways
My tensioner pully is gone. Spins like crazy and the rattle is horrid
I replace my idler pulley and it still isn’t moving
high high did you have to lift the ENGINE in order to get the Idler Pulley out?
I did not
any squeaky noice rattling noice after ac on noice starting engine noice moving stoped car noice and go away, its not only belt its the whole pulley , replace both noice mostly come from the pulley barring , don’t have to buy expensive tension pulley barring usually made in japan if it is you good for another 10 years but change the belt every 60k to 70k miles , if a mechanic says need to open up whole ac compressor means he don’t like you or he is late with his rent or simple he is a crook,
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And I like what you did but what if the noise coming from the serpentine belt because it's vibrating a lot I change it the pulley tensioner and the serpentine belt and it still making vibrating in the belt causing rattling noise mine is Altima 2012 thank you
Step one diagnose
I tried your method and I hear nothing so far but it's load as hell when the car is on. The belt is less then 6 months old so. I'm at a loss
Even though the pulley works fine the spring mechanism in the belt tensioner can go bad and cause misalignment, thus causing squeal. It's a common problem for belt squeal.
How test crank
Anyone notice the paper fly into the engine at the beginning😂😂
Good catch
i have a 1998 ford windstar i had the power steering pump replaced it still makes a wining noise what would it be please help me
Ron Mcdowra there might still be air in the system. Damaged hose or pump that could be damaged out the box
Didn't I sale you my old yellow Monte Of with the pinned down hood.. Had a backfire on one of the spark plugs and a bad console shift wire.
Thurman Burman yellow monte ?
Can this mess with the timing?
Have t seen it before
Hello I have a 2009 Lexus rx350 and when I go to turn it on first thing in the morning as the engine cranks up there is a winding sound, it’s coming from where the pulleys are located. One person said it was a bad pulley another person said it can be the water pump going bad. This winding sound has been going on for a lil over a year. Any ideas?
water pumps tend to start leaking a lil when they go bad
@@johnjoseph7382 so is it the water pump it self or the water pump pulley?
@@reinaldonieves1964 they are always together as one, you can not just replace the bearing of a water pump....when water pumps go bad the weep hole will leak more than normal....it's likely going to be the tensioner pulley but you can confirm by pulling the belt and spinning all the pulleys by hand
Need 2 get 2 the point more
my suzuki alto is breaking belt after 10 or 15 days
The A/C has a magnetic clutch…you can’t test it that easily
The compressor has a bearing on it. So yes by turning it you can hear if the noise is coming from there. Thanks for watching
Hi, Please watch my 2012 ML350. Do you think the noise is because of idler pulley? This comes only during cold starts (only first start in the morning and not later starts). Moreover it does not come in the summer or warm weather. I just replaced the PCV valve and intake gaskets due to P2279 error. This noise was there even before replacement but till date has never been an issue. I also changed serpentine belt an year back. Please tell me what you think after watching the video - ruclips.net/video/i22xJQbI8sM/видео.html
this guy lied to us
Oooooo no I’ve been exposed
it will be okay