DIAGNOSING BELT SQUEAK!
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- Опубліковано 10 лют 2025
- AC Delco 6K956 Belt: amzn.to/2ApLNDW
This is the third and final video in a series trying to figure out just what this squeak was on my 1995 GMC Suburban. The first video fix was the idler pulley (fail). The second video fix was the water pump (fail but needed to be replaced anyway). And now, this third video fix finally actually fixed the squeak which was just the belt... I have to say a big THANK YOU to you who've watched and commented and clued me in on the belt. Knowing me, I wouldn't have checked that till the very end.
1st Video (Idler Pulley): • How To Diagnose A Sque...
2nd Video (Water Pump): • How To Change A Water ...
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my personal baby is a 1996 5.7 L c 1500 style side keeping it forever man I love you gear heads on the net at 58 yrs old and slinging wrenches all my life and no way I could pick through these new vehicles with out my smart phone. just got done converting a 93 z28 from Auto to 6 speed manual and it came out like it came from the factory that way with help from net gear heads we got everything working as factory, lights clutch safety and most of all reverse lock out freaking amazing to me I have never had a check engine light I couldn't get diagnosed properly since I discovered the net praise be to you guys that take their time to post don't know what this ol' motor head would do without you guys, American hero's in your own way
I know this is 2 years old but I have been battling the same problem that it would only happen when I was cold. Thank you so much for this video. After 3 years of owning my 94 Chevy 1500. I have finally fixed it
Man thanks for your video. Was watching the one on the replacement pulley, noticed you said after it didn’t fix the problem, you said waist of time. No, no ,no brother. It makes it easier the next time. Keep up the great work. Never give up. I have no storage and live in a second story apartment. If you have a garage tear it all apart 😅
I have a 2001 Blazer with a 4.3 L V6 and the Tensioner Pulley needs replacing. It damaged the Serpentine belt. Called your favorite parts store, OReilly's. Both the belt and Tensioner pulley are warrantied by them. Like you I have never been displeased with OReilly's and they stand in back of their products. Thanks for the video as I had watched both of them and can change the tensioner Pulley Assembly myself and save money.
The same happened to me. I had a 5 month old Continental Elite Serpentine belt on my 2001 Land Rover Discovery and it started chirping. A closer look I found frayed wires along the side of the belt in four areas. Replaced the belt with a NAPA/Gates belt and it's been good to go so far after 3 months here in the cold weather of Atlanta at 60 degrees. lol
Oh yeah... "Remove Before Flight" key chain tag... Awesome!
Glad you fixed the problem I had the same thing happen but even after I replace a new belt it kept doing it to find out it was a water pump so that's good you replace a water pump also
Glad you got her fixed, that's what I said before. But at least you have a new pulley. Keep the spare belt in the truck because if it breaks on the road you'll need it.
Thanks man you really helped me out I tried changing bearings tensor and couldn’t believe it was the belt thanks again
Ok thank God , that's awesome , I hope you kept your old water pump , because it's working fine , also keep the old pulley because it needs a little greasing and it will work fine again .
Just a little piece of advice: When you are taking tension off of the belt tensioner to remove the belt, have your ratchet pointing between the alternator and the power steering pump. You will get the tensioner to move with much less effort. Thanks for taking the time to post your videos.
Great information, thanks.
Yup , I thought it was something worse on mine and turned out the belt that I had looked good until I took it off and was cracking and stretched. I had changed the idler pulley because it only 14 bucks and did have more spin than the new one so I probably didn't need to do that. But it's amazing that metal sound is from a belt.
I like how you are humble.
did you try dielectric grease , a few dabs on the ribbed part, heard it will bring the belt to life? great vid
So let me get this straight, you decided to change the WATER PUMP before you tried the belt? Lol! Subscribed by the way, really awesome stuff, might wanna invest in a serpentine wrench though, they're like 5 bucks and really make taking the belt off a breeze
+Carlos Ramirez haha! Yes! I always assume the worst... I need a breaker bar or something.
I don't disagree with reducing belt length to fit a smaller pathway, and a little more tension from a smaller belt might make a difference in squeal. I'll bite on the notion that speed is faster with a shorter belt. Maybe I misunderstood what you meant? Unless the belt is losing traction with a belt that is too long, belt length should have no effect on alternator rpm. It will be interesting to see if the fix lasts, sometimes belt chirp from lateral movement temporarily improves with a new belt.
Interesting to note that my new belt retains its outer diameter as compared to the new belt .. But .. on closer look the thickness of the old belt has worn down by approximately 1 mm .. giving unwanted noise
if you get around to actually needing a new belt and are afraid of the noise coming back try out the Goodyear Gatorback belt. They are specifically designed to be as noise free as possible.
Robert Craft Thank you I recently changed my nasty cracked belt a put on a new Dayko belt one month later I'm starting to hear the squeak again and it's even more noisy at higher RPMs
I just baught a 1997 Chevy suburban k2500 7.4l I love it man
5MPG i guess
I have a 1995 GMC Suburban k1500 SLT 5.7L, I change the belt also and no more SOUNDS. ALSO, change the belt every year. It helps that you get a warranty.
Great videos man all because of the dreaded belt curse
Wowo your video helped me figure out the squeaking sound on my 2000 chevy Silverado! Thanks!
Did you install a new water pump ?
I'm having the same problem with my 97 K1500 5.7, except it doesn't squeak until 1500 RPMs. I didn't think it was the belt because it doesn't have a lot of miles on it (maybe 10,000 at most), looks like it's in good shape, and doesn't squeak on idle. I also put a new water pump, idler and tensioner on. So, along with a new alternator and AC compressor (unrelated issues) all pulleys are new except steering and crank. A week after I finished the water pump, the squeak is back. Found your video, got a sinking feeling in my stomach, and ordered a Conti Gatorback. We'll see what happens when I put it on....
Did you ever fix your problem ?
I have a 97 Chevy Tahoe 4 x 4 I had the same problem and it turned out to be the belt but one thing I recommend that they recommend it to me before you take off your belt market with one of the pulleys that way you can put it back in the same place and it shouldn’t squeak anymore it’s when you take it off and put it back it’s already mowed it one way that way when you’re market you put it back to the original place
First, soak all new belts in 303 Protectant for 24 hours. Then wipe excess off, and dry with a paper towel. The belt will easily last 100,000 miles. If you take the belt off twice a year, wash it, dry it, then soak again for 24 hours, it can last a lifetime. Trust me, it makes all the difference in the world.
Yo Jimmy love your videos bro keep doing what you're doing I like to see more content about your burb and do it yourself videos would be cool!
Get a 2' length of pipe or floor jack handle over ratchet for leverage. Belt length has nothing to do with speed of pulley rotation. Pulley diameter determines that.
HUBBABUBBA DOOPYDOOP but he put a smaler pully in.
Yes, I heard him say that. I also heard him say that he wondered about if the belt length had any effect on rotation. Did you hear him? Click on this *@**1:02* An overdrive pulley will increase rotation- not a belt.
I had the same problem with my 2500 7.4L I replace the belt with a brand new one after one day started to make noise. I ended up buy this continental X ribbed belt. Never heard a noise again.
Yes we will help you when we see you have a problem with your truck I've been working on vehicles for a long time stay up now till next time
You got it!!! Good job , Mr. Jimmy!
See it was the simple belt! Good job
I like your videos glad it worked! 👍🏽
when one of the marks of the marks line up the other will also be lined up. if you are looking front the front of the truck toward the engine the mark being clockwise of the index it means your belt too tight and vice-versa. the current position that your belt is at is almost bottomed out because of that your belt is barely capable of doing any adjustment. I have this in the previous video that belt tension is import because it accelerates wear on your alternator bearings, water pump seals/impeller, and a/c compressor bearing.
here is a picture of belt properly adjusted:
st.hotrod.com/uploads/sites/21/2013/07/dorman-delete-pulley.jpg
Why do you like Suburbans? Are they really reliable or something?
I love O'Reilly's too! BUT if you're looking for a shitty experience from them come to the one in Westland Michigan! Lol I just go to the other one.....love your vids brother!
Left mark in polly means you have to change it. The right side means the belt must change
Yay you listened to us! Let us know if you have any issues in the future. Also you and I both are in Vegas and I have an auto repair shop here called Auto Xperts (Silverado Ranch) - bring your cars by if you have any issues. Mention my name "Saad" to the service manager and I'll hook it up with a discount.
I learn something today. Thx
Wow.....Where do you live that it gets so cold and you have to insulate your dash panel? Just kidding, it actually looks kinda nice and fluffy to touch I bet. As added note, please open your garage door when your running the vehicles!
If you don't want to buy a breaker bar to remove the belt, just find a big ass pipe from around the yard and use it for leverage. Fit the pipe over the wrench and pull away. That's all I do and it makes the job simple.
l use the handle from my floor jack. Almost seems like it was designed with that in mind as its secondary purpose lol.
Congrats!!!! Glad it worked.
I know this is old (so I'll just leave it for informational purposes) but I had the same belt squeak on my 2006 Crown Vic back at the same time frame as you. I put a Goodyear Gatorback belt on and it's still like new. Stay away from cheapo Mexican or Chinese made belts altogether. V-groove belts are notorious for squeaking. Thats why I went with the Gatorback design. I think it's made by Continental now but it's the same design. Continental owns Goodyear and General tire now.
Continental belts are made in Mexico.
If it help, the noise comes when the weather changes the belt get dry and metal surfaces have oxide. That make the noise. So!!! With engine on spread some water.
Or buy the belt moist
bar, put with engine off on belt. Its like grease or something.
Everything helps.
Problem is that new belts have a coating on them that wears off soon. It fixes your noise temporally, but then comes right back.
What pull-ups did you put on your alternator? Do you have a belt part number
Always know the belt could always be an option. I had the same issue with my 2008 Nissan frontier👍🏻
I cleaned the pulleys then changed the belt to a gatorback more pricey but squeeze is gone.... brake cleaner on paper towels careful of overspray on rubber parts.
I don't get to say this often, what with being married for nearly 17 years, but holy shit, I was right.
FRICTION.
how vulgar. Wash your mouth please.
Some channels to watch, South Main Auto, Pine Hollow Auto Diagnostics, Eric the car guy, Jim the car guy
south main auto is for real a legend, no one is better at diagnosing vehicles.
Aaron Kimmins I’d also add Chris Fix. I’ve learned so much there, starting from scratch bc I don’t really belong under a hood. But he’s helped me w a ton of stuff. (So has Jimmy here. Replaced all my interior lights w LEDs bc of Jimmy!)
Get a 2 or 3ft breaker bar to help with that tensioner. You need leverage and it will be easy.
Belt First Every Time.
Your'e kind of a dope....lol just kidding Im in the middle of the same thing on an Express van.Replaced what I was sure to be an idler pulley problem but still noise...and now for the belt...
Hi There I have similar fault it's the belt well done
The marks are there to tell you if the damper or tension is bad.. As the damper stops it from bouncing around..
shorter belt will make alternator spin faster and get more current???
No it will not, but the smaller alternator pulley will spin the alternator faster (regardless of what belt is used). Changing the belt size doesn't affect how fast any pulleys spin, only changing the diameter size difference between pulleys will change spin speed.
@@awkwardturtle9119 - of course belt length won't affect speed, contrary to what you said in video...which brought about my comment.
Take care:)
@@theGADGETSplaylist I'm not the person who made the video. I saw this comment up at the top and thought it looked like sarcasm, but want to make sure and add an answer for anyone else that came across this and didn't know.
Glad to see someone else understands pulleys and cables though :)
Had same problem. From now on. Belt First Every time. It's 90% of the time the problem.
Get a breaker bar th help with the tensioner
Why do the things old suburbans sound like the old v8 muscle cars man I love that sound?
True that fire up sounds tough.
??????? I have a a similar problem but the squealing sound idle goes away after a couple minutes its sumer time here in utah oh and I installed a new acdelco water pump did timing chain and cover and sprockets . What gives ?????? 1998 gmc k1500 5.0l 305 4wd sl z71 ????
Amen
I did that. Came back the next day.
I would replace the idlers anyway.
Very strange because that really sounded like a metal on metal squeak - congrats on the fix tho!
A product from Advance Auto caused my Check Engine Light to turn on and they wouldn't warranty it three days after purchase. That's the last time I will use that company.
Ok, after watching this, I think its the belt 😁
It would be easier to torque on the belt tensioner from the opposite side.
For my 97 Chevy suburban well it b the same
❤ i hope thats what's wrong with mine
This is all fine and good until 6 mos later the squeak comes back
you look kinda like paul denino
I told you
I told you !
If you dont change it will tear
HOLY CRAP A BELT
You held the ratchet in the position with the LEAST leverage.
Haha happy its fixed
Just change the belt once a year problem solved.
Really ? At $40 a pop, the serpentine belts can last for years and years - I would be more inclined to just let it squeak
Thank you! Whew.
My view on O'Reilley sucks !
Up here in utah all the AutoZones employees are cranky all the time dont know why but Evryone else is cool
Check the basics first lol
K.I.S.S. - “keep it simple stupid “ that’s what I go by