Jump to content

Whining noise all the time

rcslotcar
 Share

Recommended Posts

rcslotcar Enthusiast

rcslotcar

Posted
Posted

My 2020 GMC Sierra 1500 6.2L  Carbon Pro started to make a loud annoying whining noise last week.  My truck just turned 15k miles in 5 years (I'm retired) and started with this problem on start up and driving. I looked into past posts of this problem and only found that it might be the idler pulley and belt.  The truck has been serviced every 3k miles and has not had a single problem since new.  Has any one had this problem and what was done to resolve the issue.

Bikerjon Enthusiast

Bikerjon

Posted
Posted

Serpentine belt and or idler pulley is one the easiest and least expensive fixes. I dont know if you are up for the repair but I would inspect the belt for glazing and cracking. At 5 years / 15000 miles I would say just replace the belt and rotate all pulleys by hand listening and feeling for any roughness, squeeking or grinding. I am talking about idler, alternator, water pump. all pulleys. Be aware that there is a special tool to remove and replace the belt. This belt is a stretch to fit belt. If you are not familiar with this procedure you could search for it on youtube or have a pro do it for you.

rcslotcar Enthusiast

rcslotcar

Posted
  • Author
Posted

Thank You for the reply to my problem. I can do the procedure and repair as needed.again Thank You!! 

  • 4 weeks later...
s10dragracer888 Enthusiast

s10dragracer888

Posted
Posted

My 2020 4.3/6l80 made the whine, and persisted after the pulley/belt fix….it was torque converter. Hope not for you!

  • 4 weeks later...
rcslotcar Enthusiast

rcslotcar

Posted
  • Author
Posted

Got my truck to the dealer today. The problem was the idler pulley coming apart. I was lucky to get the repair done under my extended warranty. Thanks for knowledgeable persons on this site.

  • Like 1

Create an account or sign in to comment

You need to be a member in order to leave a comment

Create an account

Sign up for a new account in our community. It's easy!

Register a new account

Sign in

Already have an account? Sign in here.

Sign In Now
 Share
Go to topic listing

  • Latest Articles

  • Posts

    • c4racer2
      Trim level custom/pro

      By c4racer2 · Posted

      Seats matter a lot.  I would start there - good advise here.  I had a 2018 LT Colorado before my 2026 LT Silverado, and the seats are so much better in the new one it's not even a contest.  That was one thing I always hated about the Colorado and I owned two of them spanning 10 years - but I did it so I could park in the garage mainly.  Now I have a much larger property and a huge barn so I have plenty of parking options and a full size is more useful for maintaining the property and current hobbies as well.  I wasn't evenb thinking about the seats as part of the reason for the move to the Silverado, but after two back to back 700mile road trips I am sold on the LT seats w/ leather 100%.  The other LT features are also nice - one thing I really like is the power rear window on the back window by the bed.  And the lighting in the bed is also very nice to have - I doubt that comes on the lower models.  Power tailgate - also quite useful - it's a heavy slug!  What else - I could take or leave the screen - but heated seats and steering wheel and cruise control on the steering wheel is very useable - I would never want to live without that.  Even the colorados had that.
    • c4racer2
      Oil Consumption

      By c4racer2 · Posted

      I think the ship has sailed on the fuel injection type - everything is getting direct now.  Does it help with mpg?  Not really and nobody buying a HD truck really cares anyway.  But that is what it is at this point.  Piston rings is something they may well adjust over time to get them right.
    • Another JR
      Ac not keeping up

      By Another JR · Posted

      I don’t have detailed measurement data, but this past March we were hiking and camping in Death Valley and the Las Vegas area when this Spring’s heat wave hit with 105 plus temperatures and our 2021 L8T system kept our crew cab as cool as we wanted it (68F setting) with no trouble. Fan flows on auto once stabilized were fairly low. It seems like the OP’s system should be performing better. 
    • c4racer2
      summer road trips in the 2026 2500HD

      By c4racer2 · Posted

      Yes that's correct on the route to Durango - we just followed what google maps recommended.  That is quite the pass btw - very steep going back down.  I didn't even need manual mode - I just used cruise control and set the truck at 50 I think when it was a 45 posted speed and for the most part it just held it there by keeping it in the right gear - everyonce in awhile there is a sharper turn that I just braked for - but it was pretty smooth going down it on both sides.  Amazing views around there for sure - we had no real time to stop, were on the clock for a set-up time, but we did stop in some 2 horse town somewhere a couple hours oustide of Durango in the middle of nowhere for burgers.   And yes - lots up up and downs on the Durango trip but I think it's a big difference going 70 vs. going 80-83 with the aero in play with these big trucks.  Even the much smaller Colorado does reallt bad on gas going up over 70, I think I would have been lucky to get 18 on that trip in the Colorado honestly.  The full size is definately more comfy for a long road trip too, and the amount of gear we had would have meant two vehicles if I still had the Colorado.
    • kevin74
      Ac not keeping up

      By kevin74 · Posted

      I'm not sure what my temps were, but it would take my 2024 about 4-5 miles of driving before my AC started cooling. They replaced my compressor under warranty. 

  • GM-Trucks.com Clubs

  • Popular Contributors

×
×
  • Create New...