New battery installed runs very rough?

2015 TOYOTA VENZA
68,700 MILES • 3.5L • V6 • 2WD • AUTOMATIC
Avatar
BURDOCKK
  • MEMBER
  • 2 POSTS
Hello Support,

The new battery came from a Toyota dealership, and my car runs terribly, when i had the old battery, I could not charge all the way up. Even though it still made the car run great as always the Toyota guy said i just need to run car a few miles i have been over a 100 miles still runs terrible just because i changed the battery.

Need help badly thanks.
Apr 14, 2025 at 9:16 AM
Advertisement
Avatar
STRAILER
  • CERTIFIED EXPERT
  • 53,854 POSTS
I assume the car run good before the new battery, correct? Can I ask if you have a check engine light on while you drive? When you say it runs terribly do you mean the engine is firing or is it stalling at idle, or just idling rough? I need more information to help you, in the meantime please go over this guide:

https://www.2carpros.com/articles/repairing-engine-rough-idle-issues

Please upload a short video of the problem so I can see. Please go over this guide and get back to us.

Apr 14, 2025 at 12:49 PM
Avatar
BURDOCKK
  • MEMBER
  • 2 POSTS
Hello Support,
I took the video, but it did not come out on my phone.
so look for a video tomorrow, keep yor eyes open.

thanks,
robert

PS.
The car ran good before the new battery correct.
No check engine light on no time.
When i say it runs terribly, I mean the driving
dynamics, the more so bumpy ride think potholes

I really appreciate the information
I use to do a little mechanic work
enjoyed it.

thanks,
again





Apr 15, 2025 at 1:57 PM
Advertisement
Avatar
STRAILER
  • CERTIFIED EXPERT
  • 53,854 POSTS
It could be a tire has come apart internally, but I am not sure with the information I have, "driving dynamics, the more so bumpy ride think potholes"? Do you hear noises as well? Looking forward to the video.
Apr 17, 2025 at 8:45 AM