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Chevy Silverado and GMC Sierra Noise and Vibration



  • I have the same problem with my 2002 Z71. At first I thought it was the e-brake sticking. I had the same issue with a 95 Silverado also. Let me know, Thanks
  • I just bought a new 2007 silverado crew cab 4x4. I want to put a set of 20 inch wheels and tires on it. It currently has 17 inch ones on it. The truck has the tpms system and the dealership says I can only use GM approved wheels and tires or my gauges could start malfunctioning. Is this legit or smoke to buy through them. I have seen other trucks and even Hummers with after market wheels, I wonder if they have that problem....Any input would be helpful!
  • obyoneobyone Posts: 8,065
    With those 20" rims you need to install 275/55R20 tires to match the current height of your stock tire setup. That way it will not affect the odometer, speedometer and ABS.

    Your dealer is blowing smoke. Probably because he want you to buy it from him. Who did you talk to at the dealership?
  • KCRam@EdmundsKCRam@Edmunds Mt. Arlington NJPosts: 3,496
    The TPMS can still be affected by different wheel/tire combos because it's expecting the factory installed tire, and thus the pressure for that tire.

    kcram - Pickups Host

    KCRam - Pickups/Wagons/Vans+Minivans Moderator

  • Hi, this is my first time posting on this forum. It seems like there are lot of knowledgeable people on this site so I hope you can help me identify my problem. I just bought a 96 Silverado. It has a harmonic vibration that occurs around 1700 RPMs and is most noticeable under heavier loads although it can be detected in neutral. I assume it is either the harmonic balancer or flywheel. Both the engine and transmission were rebuilt, but I don't have any information on those repairs. Any guess as to which or is there something else I'm not considering.

    Thanks in advance,

  • Experiencing a "trombone" noise from exhaust on cold acceleration load.

    The noise lasts until the exhaust system has a chance to warm up. After driving for about ten minutes or so the noise will quit. I notice that barometric pressure and humidity variations tend to change the attitude of the noise as well.

    I had it checked out at one time and was told it is caused by a ceramic ball that is caught in the muffler. My questions are these:

    For warranty purposes (catalytic is covered and muffler is not,) could this ball have come from the catalytic converter or are there ceramic balls within the make up of the muffler itself?

    The muffler is the 3" dual inlet - dual outlet and have been told a new one is not available for it but if they could find it it would cost about $500 ?

    Any help here appreciated!

  • My 2000 Silverado does the same humming noise from the tank. I was real nervous first time I heard it. Been doing it for about 2 years now, and I have 150,000 miles. It is definitely the fuel pump when the fuel level gets low. As long as I have about 5 gallons in my tank I don't hear it, but it gets louder as the fuel level gets lower. Sounds AWFUL when I've only got a couple of gallons! Good way to know you need fuel if you aren't paying attention to the gauge I guess!
  • citizen

    It is my understanding that the catalytic is filled with ceramic balls/beads that are coated in platinum (???). That is why they are expensive. The exhaust emissions are reduced by a chemcial reaction that takes place on the surface of those little balls.

    Mufflers do not have those balls inside them. Mufflers are just a way to reduce the sound, and are filled with various chambers and baffles to accomplish that. Maybe it is possible that one of the little balls escaped the cat and got into the muffler. The balls are not very big, it seems odd that such a tiny thing could cause a big noise. Call around to some muffler shops and see what they say.

  • offroader,

    Thanks, unbelievably enough the trombone noise goes away completely during times of dry weather and low humidity but immediately returns after a good rain or in times of high humidity. I think this may help attribute to the loud noise as condensation is in there with the pebble, plus it's probably rolling around in there as well, changing the attitude .........definitely a strange aberration indeed.

    The fact that the muffler contains no ceramic balls is huge ammunition in getting this thing fixed within my 80,000mi exhaust emissions warranty.

    BTW it was dealer that told me that it was a ceramic ball originally .

    May be a battle but will keep the board apprised


  • Hello also my first post in this forum. I have a 1997 gmc suburban with a 5.7 (122,000miles) with what sounds like the same problem. During light acceleration, or anytime that the engine would be under load. . . vehicle traveling around 40 or so MPH . . ..hear a light growling kinda sound, and feel a light vibration. The problem just started out if the blue, it seems to be worst when its colder. I've found several posts in several different forums but no solutions yet.

  • Have a 2005 Silverado 1500 V6. Keep getting a steady chirping noise, seems to go away if vehicle is warm and idle. Once I accelerate the chirping noise comes back. I have changed out the serpentine belt, tensioner, and idle pulley. Got no clue, no engine lights are on, fluids all seem steady and no leaks that I’m aware of.
  • I have a 2005 Silverado dually with the 8.1 engine. It presently has 5400 miles on it. At 4600 miles it developed a drive train vibration that comes at 1200 rpm for a few seconds, back at 1800 rpm and back super bad at 2600 rpm. When I tow my camper it seems to hover at 2600 rpm just before shifting and at that point you can not see out of the mirrors. It tickles your ears and is very uncomfortable until it shifts, which at times is a few minutes. The dealer disconnected everything on the front of the engine as well as the torque convertor. The vibration was still present, so they replaced the harmonic balancer. When I got it back, it now is worse. Has anybody else ever had the same problem? GM now claims since nothing is broken, they can't fix it and it is "probably" a design flaw.
  • obyoneobyone Posts: 8,065
    Was it GM that claimed that it is a design flaw or the dealer?

    Personally, I'd go to another dealer.
  • It was the dealer that claimed it could be a design flaw. The closest dealer not associated with the local one is 65 miles away. Not convienent, and they want me to drop it off for a few days. When I called GM customer service, the person was nice and asked me what I wanted from GM. I said just to fix the vibration. Then she asked for me to hold on while she contacted the dealer that worked on it and when she returned to the phone, she transformed into a less than nice person, and ended it with words like, "I'll close this case and mark it that you aren't satisfied with the results." She is right, and my next call will be to BBB in Washington DC. Here we go!!! :mad:
  • obyoneobyone Posts: 8,065
    Once you file with the BBB and a buyback is initiated there will be another phone call from a GM rep. One that handles buyback and lemon law cases. They will offer you a free extended warranty to drop your claim. Course how you proceed after that is up to you. That warranty that they offer is the Major Guard bumper to bumper 100K/ 5 year no deductible worth around 2.5-3K.

    good luck on whichever you decide.
  • I also had an 04 gmc sierra 4x4 z71 5.3 that vibrated at 900 rpm. i tried to get the dealer to fix it for 2 yrs and they replaced a heat shield on the muffler once which didn't fix it and couldn't diagnose it the other two times. (i also had steering problems which they've finally fixed) finally i took it in this month again and they said the transmission dipstick tube was vibrating against the firewall. charged me 45 bucks to redirect it and its quiet now. I thought the noise was coming from the dash and it sounded metallic and would be louder when colder outside and upon first starting the vehicle at that rpm. can't believe that was all it was. now i have to try and get GM to pay for it because it should have been fixed under warranty. although i'm just so happy it went away that its worth the 45 bucks...
  • Hello, New to the forum, I just recently had step bars installed and now i am getting a creaking noise from what i believe is the frame body mounts could these step bars be causing the noise? Would appreciate any help advice.
  • I took my GMC (2001 extended 4x4) to the dealership about the clunking issue and it cost me $400 to get it fixed. I let it go for quite a while and it started sounding worse and the "bump" you feel started getting worse as well.

    Seems to me that GMC would have a recall about this problem as the last 2001 truck I had did this as well except I did not get it fixed then. Back then I don't think they really knew a lot about this issue but they sure did this time. Just as soon as I said what it was doing they knew exactly what it was doing. I did not even get out of the parking lot with the mechanic before he said for me to head back to the doors.

    Does anyone know if there was a recall and now it has expired or anything relating to this?

  • xbbusterxbbuster Posts: 145
    darkston, I have an '07 Classic Ext Cab W/T. I installed a pair of Westin tubes and noticed a vibration at 35MPH. I took it to the Chevy dealer and they said it was the tubes causing it. I have to keep the step tubes so the wife can get in the thing. creaking noise.
  • New to the forum and have a problem that I thought other may have experienced. I have a severe exhaust vibration that occurs when idling at a stop light (not during exceleration) and while maintaining a constant speed. Just finished my second visit to the dealer and still no improvements. Dealer is saying that GM is aware of the problem but are just considering this the "nature of the beast" with the V6 it comes equipped with. Dealer also stated that they are aware of this problem and have tried several different things (including flex hose) but have nothing. Any ideas??
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