Chassis rattle or knocking sound?
Grab our Forum Feed

+ Reply to Thread
Results 1 to 10 of 10

Thread: Chassis rattle or knocking sound?

  1. #1
    Join Date
    Jul 2013
    Location
    Metro Detroit
    Posts
    166

    Default Chassis rattle or knocking sound?

    I was wondering if anyone has experienced a chassis rattle or knocking in the gen 2 volts?

    We have a rattling or a knocking sound on occasion sometimes we hear it when we go over a rough road or bumps. It sounds like it is coming from the undercarriage or frame. Almost sounds like a big bolt knocking or rattling around.

    Maybe a shock or strut?

  2. #2
    Join Date
    Oct 2013
    Location
    Fighting Illini country surrounded by bean fields
    Posts
    10,027

    Default

    Are you certain it's not coming from the rear hatch? Many have reported rattling in the back end and that is often easily fixed by fiddling with and twisting the rubber stoppers to stop the rattle. But if you are convinced it is something in the suspension, take a careful visual look and quite possibly take it into the dealership as you don't want to ignore it. I had a broken front spring in my CTS once. It made a clunking noise until I replaced it. But a loose tie rod or control arm can be very dangerous.
    LLninja (greenback troll #1)
    2013 Volt G1 white diamond tricoat

    If I can get the guy in the mirror under control I can be skinny and rich.
    If you don't have the money, don't buy it. Debt is hazardous to your wealth
    Hidden Content Originally Posted by doctorq Hidden Content
    "what kind of mental problem do you have? you should really get yourself checked out, are you on any type of psychotropic medications?
    R:IQ $2.2M, at $1.7M proj $4.8M

  3. #3
    Join Date
    Apr 2014
    Location
    bc, canada
    Posts
    233

    Default

    Interesting because I came on these forums today looking for just the exact same issue. I have not taken it to the dealer yet because, for myself, it's quite actually hard to replicate and the sound is very faint. It only happens, or should I say I can only hear it, when I'm traveling less than 10km/hr and over somewhat bumpy road. Anything faster than that, I don't notice anything regardless of road surface condition.

    I've can sometimes hear it when I am going really slow and turn the steering back and forth really fast.

  4. Remove Advertisements
    GM-Volt.com
    Advertisements

  5. Advertisement

  6. #4
    Join Date
    Mar 2016
    Location
    Illinois
    Posts
    38

    Default

    Put the car on a lift or use ramps and check the under-body panels for rocks (or bolts?) by gently pounding with hand while listening. I had a rock which found it's way between the panel and the chassis and it drove me nuts until I finally crawled under and removed it.
    Or, do it the safe and easy way and take it to the dealer and ask them to check.
    Last edited by brad112358; 4 Weeks Ago at 04:01 PM.

  7. #5
    Join Date
    Apr 2017
    Location
    Maryland
    Posts
    157

    Default

    Unless it is super obvious and repeatable, they never seem to be able to find these things :-( They have a special code for it: NPF (no problem found).

  8. #6
    Join Date
    Dec 2015
    Location
    Virginia
    Posts
    1,636

    Default

    I picked up a rattle in the back on my Gen 1 that turned out to be some gravel in the rear bumper by where the reverse light is. I know the Gen 2 has a different arrangement but it could be something like that.
    A study in opposites
    1997 Jeep Cherokee
    2013 Chevy Volt "OHM-RIDE"

  9. #7
    Join Date
    Feb 2016
    Location
    GTA
    Posts
    55

    Default

    I had a rattle and knocking sound that I though was coming from my passenger seat or passenger door. I took it into my dealer for what I though would be warranty work, but it was actually my exhaust. There was a noticeable dent and bend in my exhaust pipe right under the passenger seat. I must have hit something or bottomed out (I don't actually remember though). When I drove over a rough road or bump, the exhaust would hit the undercarriage and create the rattle and knocking sound. Dealer wanted $1700 to replace the exhaust! Took it to my brother who is a mechanic and put the volt up on a hoist and he bent it back by pulling on it (didn't have to wait for the exhaust to cool down - because I never use it!). No more rattle or knocking.

  10. #8
    Join Date
    Oct 2013
    Location
    Fighting Illini country surrounded by bean fields
    Posts
    10,027

    Default

    Quote Originally Posted by dunhilldarts View Post
    I had a rattle and knocking sound that I though was coming from my passenger seat or passenger door. I took it into my dealer for what I though would be warranty work, but it was actually my exhaust. There was a noticeable dent and bend in my exhaust pipe right under the passenger seat. I must have hit something or bottomed out (I don't actually remember though). When I drove over a rough road or bump, the exhaust would hit the undercarriage and create the rattle and knocking sound. Dealer wanted $1700 to replace the exhaust! Took it to my brother who is a mechanic and put the volt up on a hoist and he bent it back by pulling on it (didn't have to wait for the exhaust to cool down - because I never use it!). No more rattle or knocking.
    I wish I had a brother with a lift. I'd be able to do so much with it.
    LLninja (greenback troll #1)
    2013 Volt G1 white diamond tricoat

    If I can get the guy in the mirror under control I can be skinny and rich.
    If you don't have the money, don't buy it. Debt is hazardous to your wealth
    Hidden Content Originally Posted by doctorq Hidden Content
    "what kind of mental problem do you have? you should really get yourself checked out, are you on any type of psychotropic medications?
    R:IQ $2.2M, at $1.7M proj $4.8M

  11. #9
    Join Date
    Nov 2010
    Location
    South East Michigan
    Posts
    84

    Default

    I suffered through a bad rattle that I thought at first was coming from the right rear door. I finally took it to the dealer. It was the air bag attachment above the door loose. Took three days to find and fix.
    2017 Premium Kenetic Blue
    2016 Chevy Traverse
    1964 Corvair Monza Convertible
    1921 Ford Model T Touring

  12. Advertisement

  13. #10
    Join Date
    Mar 2017
    Location
    Ottawa On
    Posts
    1

    Default

    I had a rattle on the 2017 Volt coming from the back, It was the battery separator/compartment . It's made of plastic which is hold by 3 bolts, 2 of those bolts are metal and the 3rd one on the right side of the battery is made of plastic , which was not holding much . I end up gluing 3M felt under the plastic compartment and replace the plastic screw by a metal one. That did fix my problem..

+ Reply to Thread

Quick Reply Quick Reply

  • Decrease Size
    Increase Size
  • Remove Text Formatting
  • Insert LinkInsert ImageInsert Video
  • Wrap [QUOTE] tags around selected text

Similar Threads

  1. Hard braking and now a rattle sound
    By bnaccs in forum Generation 1 Volt (2011-2015)
    Replies: 6
    Last Post: 12-21-2016, 06:22 PM
  2. 2014 Volt: Clicking or Knocking Sound on Slow Turns
    By Quiller in forum Generation 1 Volt (2011-2015)
    Replies: 13
    Last Post: 12-08-2016, 11:27 AM
  3. Knocking/rattle from front end when driving slow when running on gasoline.
    By viget in forum Generation 1 Volt (2011-2015)
    Replies: 24
    Last Post: 11-30-2016, 06:03 PM
  4. Random Knocking sound?
    By dukecola in forum Generation 1 Volt (2011-2015)
    Replies: 6
    Last Post: 09-09-2014, 01:08 PM
  5. Rattle sound from center console area
    By nomorec02 in forum Generation 1 Volt (2011-2015)
    Replies: 6
    Last Post: 02-24-2013, 02:21 AM

Bookmarks

Posting Permissions

  • You may post new threads
  • You may post replies
  • You may not post attachments
  • You may not edit your posts