Clunking noise when accelerating from a stop

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.

Friday, October 2nd, 2020 AT 6:07 AM

9 Replies

ASEMASTER6371

MECHANIC
52,797 POSTS

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

HAP

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37 POSTS

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

ASEMASTER6371

MECHANIC
52,797 POSTS

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

HAP

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37 POSTS

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

ASEMASTER6371

MECHANIC
52,797 POSTS

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