Clunking noise when accelerating from a stop

Tiny
HAP
  • MEMBER
  • 2005 CHEVROLET UPLANDER
  • 3.7L
  • V6
  • 2WD
  • AUTOMATIC
  • 110,000 MILES
The van sometimes makes a mild clunking noise (in what sounds to be the rear end or tranny) when I go forward from a stop.
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Friday, October 2nd, 2020 AT 6:07 AM

9 Replies

Tiny
ROY B
  • EXPERT
Good afternoon,

This sounds like a possible motor mount that is worn out and allowing the powertrain to move under load.

https://www.2carpros.com/articles/how-a-motor-mount-works

I attached pictures of the mounts for you to check. Look for cracks and breaks in the rubbers which would indicate they are bad.

https://www.2carpros.com/articles/replace-motor-mounts

Roy
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Friday, October 2nd, 2020 AT 9:31 AM
Tiny
HAP
  • MEMBER
Thank you very much. How can I tell for sure if that's the real problem or not?
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Friday, October 2nd, 2020 AT 10:40 AM
Tiny
ROY B
  • EXPERT
You will need a second person in the car to put it in reverse with there foot on the brake and parking brake set and give it gas. The motor will likely move and you need to see which mount is allowing the movement.

You are welcome.

Roy
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Friday, October 2nd, 2020 AT 10:41 AM
Tiny
HAP
  • MEMBER
Also, (I don't if it's related or not) the ABS (and sometimes the traction control) light comes on when I'm driving on bare pavement. And according to a plug-in scanner, all the wheels are spinning at the same speed.
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Friday, October 2nd, 2020 AT 12:46 PM
Tiny
ROY B
  • EXPERT
Not related at all.

If you want to work with the ABS issue, you will need to start a new question.

We can only answer questions on one issue at a time.

Roy
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Friday, October 2nd, 2020 AT 12:57 PM
Tiny
HAP
  • MEMBER
Okay.
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Friday, October 2nd, 2020 AT 1:50 PM
Tiny
ROY B
  • EXPERT
Keep me updated.

Roy
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Friday, October 2nd, 2020 AT 1:51 PM
Tiny
HAP
  • MEMBER
I will. Thanks Roy.
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Friday, October 2nd, 2020 AT 1:58 PM
Tiny
ROY B
  • EXPERT
You are welcome.

Always glad to help.

Roy
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Friday, October 2nd, 2020 AT 2:03 PM

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