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In this video Eric O. shows you an in the shop "life hack" so come along as he shows you a safe way to locate a noisy pulley on your engine with out the risk of injury or expensive equipment using a really simple trick!
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Disclaimer:
Due to factors beyond the control of South Main Auto Repair, it cannot guarantee against unauthorized modifications of this information, or improper use of this information. South Main Auto Repair assumes no liability for property damage or injury incurred as a result of any of the information contained in this video. South Main Auto Repair recommends safe practices when working with power tools, automotive lifts, lifting tools, jack stands, electrical equipment, blunt instruments, chemicals, lubricants, or any other tools or equipment seen or implied in this video. Due to factors beyond the control of South Main Auto Repair, no information contained in this video shall create any express 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 the information contained in this video is the sole responsibility of the user and not South Main Auto Repair.

50 thoughts on “How to locate a noisy idler pulley”
  1. Avataaar/Circle Created with python_avatars RIP RICE says:

    That's a dope trick not even going to lie… Science

  2. Avataaar/Circle Created with python_avatars Import Domestic says:

    I have a 2015 Infiniti Q70L 3.7L that is experiencing belt noise. It sounds like a little squeak. Less than a year ago the dealership replaced the serpentine belt and air-conditioning belt four months ago they replaced the alternator as well under warranty. Unfortunately I no longer have warranty since I ran out of time and not the mileage. Is there a chance they might have damaged the belts after replacing the alternator? The belt has less than 12 months. I currently have 150,000 miles. Keep in mind the belts were replaced are about 135,000 miles 140,000 miles. What’s your thoughts?

  3. Avataaar/Circle Created with python_avatars Victor Pena says:

    You kill me Eric. Reminds me of my old man, WWII Combat Engineer. He'd use common sense and Critical Thinking to solve most any problem.
    He told me on real old cars you had to change the "bushings" on the crankshaft/rod connections every 30,000 miles or so. Metals were not as durable or hardened at that time.
    You would drop the oil pan, R&R the bushings, put her back on the road.
    Ehh.. couple of hours, you're done.
    Good Work, My Friend. 👍

  4. Avataaar/Circle Created with python_avatars Busted Knuckle says:

    You should get together with Ivan and start a national mobil diagnostic service… even reginal

    Become mega-billionaires

    Here in the Asheville area. We have nobody trustworthy

    You could market to repair facilities that have vehicles beyond their abilities

  5. Avataaar/Circle Created with python_avatars Dan Uber says:

    The old school never dies !

  6. Avataaar/Circle Created with python_avatars USMAN KHAN says:

    Smart …..very smart….Good job buddy.

  7. Avataaar/Circle Created with python_avatars Dan Lo says:

    i have a PS pump that sounds like it’s knocking, no knocking while belt is off, ice changed the pump 2x still knocks
    any ideas ideas of what’s making it knock ?

  8. Avataaar/Circle Created with python_avatars Dan Lo says:

    i have a PS pump that sounds like it’s knocking, no knocking while belt is off, ice changed the pump 2x still knocks
    any ideas ideas of what’s making it knock ?

  9. Avataaar/Circle Created with python_avatars Geno Dabat says:

    Absolutely brilliant buddy, thanks for the tutorial..

  10. Avataaar/Circle Created with python_avatars HVACNinja83 says:

    That's a great idea, works mint!

  11. Avataaar/Circle Created with python_avatars Bryan Chen says:

    I had similar noise and the mechanic said it was an issue with the idler pulley. Car is under warranty but have to wait 3 to 4 weeks for parts. Is it safe to continue using the car while waiting for the replacement pulley?

  12. Avataaar/Circle Created with python_avatars Teknotox says:

    damn that's so much more smart than sticking the handle up to your head and trying to avoid the belt and fan.

  13. Avataaar/Circle Created with python_avatars DieselDog1982 says:

    I just spray lube or water on the pulley. The liquid will quiet it down and you'll know for sure. They make a mechanics stethoscope for this stuff. In my 2+ decades as a professional fleet tech, I have seen this method turn into a catastrophic event,….but hey to each their own right.

  14. Avataaar/Circle Created with python_avatars Carey Frisch says:

    I invested in the proper and safest tool: a mechanics stethoscope! You don't ever see a doctor using a cutoff jug and screwdriver do ya? And yeah, I used just a screwdiver for the longest time until it accidently slipped, and the screwdriver handle smacked me in the side of the head! That was some kingd of hurt!

  15. Avataaar/Circle Created with python_avatars Jake Highland says:

    Those dangling strings though… be careful man.

  16. Avataaar/Circle Created with python_avatars The Stork says:

    Brilliant. I’m digging into a pulley noise tomorrow on my Jeep TJ. I was going to do the screwdriver trick, but adding that container is genius. I will be using that trick. Thanks!

  17. Avataaar/Circle Created with python_avatars Rob Gracia says:

    awesome thank you for doing this

  18. Avataaar/Circle Created with python_avatars jrob r says:

    That's pretty good idea, after all I'll what brain cells I have to finish the job, really great step by step

  19. Avataaar/Circle Created with python_avatars The Devil In The Circuit says:

    Re: "danglies:" if you've never used them, CUT THEM OFF. Could be a life saver.

  20. Avataaar/Circle Created with python_avatars Alberto Lebron says:

    wthhhhh

  21. Avataaar/Circle Created with python_avatars Mike Self says:

    Thanks for the milk jug tip! Found out the tensioner was bad within seconds of trying your trick. 🙂

  22. Avataaar/Circle Created with python_avatars John S Wolter says:

    Excellent

  23. Avataaar/Circle Created with python_avatars BigWheel says:

    This trick saved me the hassle and expense of buying a stethoscope from harbor freight, now all I have to do is wait for the snap on truck to come to buy some screwdrivers.

  24. Avataaar/Circle Created with python_avatars javier m says:

    great idea

  25. Avataaar/Circle Created with python_avatars Chimwemwe Tommy Msuku says:

    thanks for the megaphone hack, i will do exactly tomorrow morning

  26. Avataaar/Circle Created with python_avatars Shade Tree Mech says:

    Now that is a trick I can use at home.

  27. Avataaar/Circle Created with python_avatars David Ngwin says:

    Good morning brother. Thank you very much for that 🙏

  28. Avataaar/Circle Created with python_avatars Dwight Franklin says:

    Thanks man. Will used this trick forever. I would of been the one with the screwdriver though the head. Like all your videos. Straighten up a lot of my shade tree stuff

  29. Avataaar/Circle Created with python_avatars B P says:

    Sounds like plugging in dirty rcas

  30. Avataaar/Circle Created with python_avatars jayp pop says:

    Sounds just like my kia 🤣 thanks bro !

  31. Avataaar/Circle Created with python_avatars Bob Elder says:

    Awesome video.

  32. Avataaar/Circle Created with python_avatars 80srockerable says:

    Good idea. Will try this. Harbor freight makes a $5 stethoscope with a rod that works well too.

  33. Avataaar/Circle Created with python_avatars Freddie Johnson Jr says:

    That was a real cool little tip, thanks 👍

  34. Avataaar/Circle Created with python_avatars OVI-Wan Kenobi says:

    Why don't you just use a mechanic's stethoscope?

  35. Avataaar/Circle Created with python_avatars Alice Webb says:

    There's still great herbal healers online thanks so much Dr. kwaloe on you tube for helping me get rid of the contagious herpes virus that almost cost me my job due to back to back outbreaks.

  36. Avataaar/Circle Created with python_avatars Felix Gomez says:

    The Garden hose works well too.

  37. Avataaar/Circle Created with python_avatars Joseph Smuckatelly says:

    Great idea, thanks. It would have been nice to show the difference between bad and good sound.

  38. Avataaar/Circle Created with python_avatars winston smith says:

    heavy!!!!!!!

  39. Avataaar/Circle Created with python_avatars Michael Scott says:

    Brilliant

  40. Avataaar/Circle Created with python_avatars Lite Sleeper Music says:

    Thank you for teaching this amazing trick