Knocking or vibrating when the transmission is shifted into gear

Tiny
KAREN ROGERS
  • MEMBER
  • 2011 DODGE AVENGER
  • 1.4L
  • 4 CYL
  • 4WD
  • AUTOMATIC
  • 113,000 MILES
When I put the car in reverse it vibrates the car. When the car is in drive no issues and runs smooth. I thought it needed a transmission flush and fuel flush which I did but, it is still doing it and the engine light has now came one.
Saturday, June 19th, 2021 AT 2:42 PM

1 Reply

Tiny
KASEKENNY
  • MECHANIC
  • 18,907 POSTS
I am sorry for the delay. We need to start with checking the codes. I suspect that will help us figure this out but based on this info the most likely cause of this is a valve body issue but there are a number of other things that could cause this.

https://www.2carpros.com/articles/checking-a-service-engine-soon-or-check-engine-light-on-or-flashing

This could be a vacuum leak, torque converter issue, and a number of others as well. So it is important that we start with the codes and find out what they are and go from there.

https://www.2carpros.com/articles/how-to-use-an-engine-vacuum-gauge

Thanks
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Sunday, June 20th, 2021 AT 3:36 PM

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