Jump to content

whining noise from my 4.3 liter sonoma (intermittent

marcblouin
 Share

Recommended Posts

marcblouin Enthusiast

marcblouin

Posted
Posted

new guy on the forum here, hi!

 

I'm having a weird problem with my 2003 sonoma. Every once in a while my truck will whines (see video). It used to make a higher pitch whine than that when it was cold outside, but the weird thing is that it rarely does it. And I think it may be related but the truck smells like burnt rubber sometime. Another thing that maybe related to that noise is that when I let off the gas at 100-110 km/h, my rpm drops suddently from 2100-2200 to 1400-1500, and I go from 100-110 km/h to 70-80 km/h in seconds. I've checked my front end and brakes, and the noise doesn't come from there. I was thinking maybe a vaccum leak somewhere, but I'm not to sure anymore since its smelling burnt rubber. Anyone wanna give their 2 cents?

 

thanks in advance

 

jdomke1 Enthusiast

jdomke1

Posted
Posted

If it’s a rubber smell have you checked the belt or hoses that may be touching hot exhaust or moving parts?


Sent from my iPhone using Tapatalk

marcblouin Enthusiast

marcblouin

Posted
  • Author
Posted

no I haven’t. I’ll take a look! but someone told me the burnt rubber smell (skunk kinda smell) is normally the catalylic converter. 

 

I dont think it’s related. usually that loud whine happens when I get back in town after I drove on the hwg for a while

 

JamesQ Enthusiast

JamesQ

Posted
Posted

What all have you checked? Have you checked all the fluid levels including rear end? It only does it when moving? Is the truck stock?


Sent from my iPhone using Tapatalk

marcblouin Enthusiast

marcblouin

Posted
  • Author
Posted (edited)

yeah, I have checked all fluids including the oil in my rear diff. they are all top off and in good condition. The truck isn’t stock I think. I bought it 2 months ago, it has an aftermarket exhaust, and it has something on top of the engine that says msd with a little module, a spark plug on it with a wire (not sure what it is?). And yes it only does it when the truck is moving. You can take a look at the video I posted, this is after a 1h30 drive (backroad &

highway). You don’t hear it at all at high speed, but between 30km/h to 60km/h it whines really loudly if the truck has been driven at higher speed previously.

Edited by marcblouin
JamesQ Enthusiast

JamesQ

Posted
Posted

If you can, try getting it onto jack stands after driving and shut it off but put it in neutral and spin the wheels or have someone spin them and see if it makes noise. If it does then you can move around until you find where it’s coming from then investigate further in that area to pin point it.

It’s worth a shot.


Sent from my iPhone using Tapatalk

  • 2 weeks later...
marcblouin Enthusiast

marcblouin

Posted
  • Author
Posted

 

 

I have looked up similar whining noise on youtube. I have heard bad rear end (bad diff and/or pinion bearings) that sounds similar to that and bad transmission and/or torque converter that sounds similar to that too. What do you guys think it is? Thanks!

marcblouin Enthusiast

marcblouin

Posted
  • Author
Posted

I have checked my wheel bearings in the front/rear and they have no play and they're good. it's a 2wd though, it's not a hub assembly in the front. I haven't look my u-joints though. Do you mean the u-joints in my drive shaft?

  • 8 months later...
Possum1967 Enthusiast

Possum1967

Posted
Posted

Could be your carrier bearing is worn out.  Can you move the center of the 2 piece driveshaft around inside the loop? The bearing is encased in a rubber mount and when they go,  they reek,  and make a ton of noise.  Worth a. Look. 

  • Thanks 1
  • 2 weeks later...
marcblouin Enthusiast

marcblouin

Posted
  • Author
Posted
On 05/12/2018 at 11:10 AM, Possum1967 said:

Could be your carrier bearing is worn out.  Can you move the center of the 2 piece driveshaft around inside the loop? The bearing is encased in a rubber mount and when they go,  they reek,  and make a ton of noise.  Worth a. Look. 

Are you a wizard? My carrier bearing blew out exactly 2 weeks ago december the 5th

  • Thanks 1
  • 1 year later...
GeorgeE New Member

GeorgeE

Posted
Posted

Marcblouin? Is that what it was? I have a 2004 Sonoma that makes a load whining noise sometimes and goes away. Did fixing the carrier bearing get the noise to quit happening?

marcblouin Enthusiast

marcblouin

Posted
  • Author
Posted
2 hours ago, GeorgeE said:

Marcblouin? Is that what it was? I have a 2004 Sonoma that makes a load whining noise sometimes and goes away. Did fixing the carrier bearing get the noise to quit happening?

Never replaced anything and some day the carrier bearing broke on the highway. So yes that was the noise I was hearing. It was a simple fix, really it isn’t expensive...much less than a trip on a towing.

GeorgeE New Member

GeorgeE

Posted
Posted
26 minutes ago, marcblouin said:

Never replaced anything and some day the carrier bearing broke on the highway. So yes that was the noise I was hearing. It was a simple fix, really it isn’t expensive...much less than a trip on a towing.

Hope it's the issue. It's been driving me crazy. Thank you for the reply. 

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

    • Chuck FB
      Oil Consumption

      By Chuck FB · Posted

      So speaking of oil consumption with my L8T as I just changed the oil yesterday and made the switch over to Amsoil SS 0W-40 from the Mobil 1  5W-30 Truck and SUV I just dropped out. 2900 miles on that oil as well as  68 hours on that oil ( so used to equipment with an hour meter and that becomes valuable information to compare with others as well ). Once again the oil use was so very little, I am going to say it dropped under 1/16 of an inch on the dipstick. No towing was done and this interval was from early spring until now.    One interesting item to note is that going by the 5 quart jugs I was using before from Mobil, it was showing that I was putting in 8 US quarts to bring it to full if not slightly over the full mark according to their jug markings. Granted I did allow more drain time this time and in part because the engine oil was only lukewarm as I started it and let it idle and not for long enough to get the oil itself hot ( the engine was up to operating temp ). The oil in that state just seemed to take forever for it to drip out but not only at the drain plug but at the oil filter housing as well, perhaps I had never quite gotten all the oil out before and I could have still waited longer but as it was I waited well over 3 hours. I think next time if I have the time I will do an experiment by dropping the oil and lets say leave the pan under it for 15 minutes, then switch to another pail and let it drip out overnight and measure how much more oil comes out. So this time and yes I ended up getting it just over the full mark as I was experimenting with trying to get the level to the add mark after I had run it and then waited some and then added a bit and waited for a certain amount of time for it to settle to the add mark. I very well may not have waited long enough for that experiment but I got to the add mark, then dumped in a full quart and waited some and checked and then waited some more and it crept up more ... and then finally oops, it was slightly over full some hours later when it really had settled all it would. I find this engine sure takes time for the last bit of oil that gets poured in to finally make its way into the crank case. I can only guess at how much too much I added as per maybe a 1/10th of a quart. I had poured in 8.5 quarts going by the quart containers as per 8 quarts and 16 us ounces. I was shocked at how much this was off compared to the prior oil changes and if those larger jugs and they are not marked accurately enough or they contain slightly more than what they say, or the drain time factor made that much of a difference. But I know on this forum there have been others who have said they have put well over 8 quarts in their L8T and now I have also going by the Amsoil true quart containers. Its a confusing convoluted mess up here in Canada with some oil manufactures packaging is in true US quarts, some is also in true US quarts containers on an even number of quarts but also marked in liters which becomes the odd ball volume of a fractional amount of liters. Then there is the Liters only containers, no US markings as its a true metric container and only measured in Liters to an even number of Liters. But remember we used to have Imperial Gallons and Imperial quarts as well !. 
    • Atlas
      2027 GMC Sierra: Official Discussion

      By Atlas · Posted

      Holy smokes. Clearly not a deal on that truck. I just mean in general, matte or painted trim is becoming more normative than chrome, but I know the Black Optics packages on various vehicles are being sold as uplevel trims. They look really good, but sheesh. It's just paint and plastic.
    • Grumpy Bear
      Some Assembly is Required

      By Grumpy Bear · Posted

      I Wouldn't Know Where to Begin    Oh I know where I would begin but I'm just one of over eight billion people on this rock. Eight billion versions of where the goal post is. How large it should be. How far to kick from. What ball is the right ball. Elevation. Age.....are you getting the point? It isn't about disagreeing with one individual. It's about agreeing only with one individual. One's self.   Agreement comes when multiple people hold the same point already. THAT is the goal of an education. Building the Social Contract. That thing that allows us to all read this sentence. We've agreed on the alphabet and how to arrange those letters into words we agree upon whose meanings hold true for everyone entering into that contract. Those words arranged into a sentence form an idea and several sentences strung together in a paragraph convey an argument for or against or inform the reader of a state, condition or perhaps reveal a things nature. Paint a word picture. Make oneself known.    This contract is not limited to words although they are often explained by words. Things like numbers and their usefulness. Physics, Chemistry, Medicine, Music, Art and so on.    The frequency of middle C (C4) is 261.63 Hz is a first principle. We build on that to make music we all can enjoy even if we all can not compose or play. You don't have to master it to make it enjoyable and useful.    So why is the Beginning so difficult? Why is agreement so elusive?   Everyone "Signs" the contract (when receiving that education in obtaining it)  but fewer and fewer in this world have any intention of living by that contract. They find exploiting that contract more advantageous. Disruption. With intent. Without intent. In Ignorance. In your face. With a double dog dare you. With a hold my beer. In resistance to that contract and in spite how it looks on us. It permeates the very air we breath.    In this way the contract is subject to advantage. Abide by it when it serves you, disregard it when it doesn't. Unpredictable and self-serving. Corrosive.....Toxic........   It says a lot about a persons character to disregard the contract, the truth, first principles. None of it good.        ********************************************************   https://medicine.yale.edu/news-article/character-vs-personality-who-we-are-and-who-we-aspire-to-be/   Just an interesting article.   
    • Jus Cruisin
      2027 GMC Sierra: Official Discussion

      By Jus Cruisin · Posted

      It costs $5,250 for the Yukon Nightfall option (black wheels, emblems and illuminated black GMC grill badge). What a "deal". 
    • Ralph Reale
      Android auto could not connect

      By Ralph Reale · Posted

      I keep getting the above error message on my 25 Sierra.  If I reset the infotainment unit (via the phone hang up button) it will work again for a day or 2.   But I dont want to do have to reset  all the time. Works fine in my 2023 Corvette. On both vehicles I connect wirelessly.   I have a Google Pixel 10 Pro XL, phone is up to date.  Any Ideas.  See attached  

  • GM-Trucks.com Clubs

  • Popular Contributors

×
×
  • Create New...