At times when I take off it seems to jump in gear/ not smooth at times?

T. JOHN

MEMBER
2005 TOYOTA 4RUNNER
V6
AUTOMATIC
220,000 MILES

I started to have transmission trouble with less than 160,000. Took it to a reliable shop and also got a second opinion. Both places could not believe it and said these are supposed to basically last forever. The shop had a hard time finding one. They did and had a remanufacture one put in. It is now 2023. I have not done a transmission fluid replacement and filter or a flush yet. About 2 months ago. I noticed that auto repair shops have to without me telling them. At times when I take off it seems to jump in gear/ not smooth at times. What do you think may be the problem and should I or a shop do the above? I know about 60,000 on the remanufactured transmission.
Thank you for your help.

1 Reply

KEN L

MASTER CERTIFIED MECHANIC
47,690 POSTS

The first thing I would do is check the transmission fluid level, it could be low, this guide can help:

https://www.2carpros.com/articles/how-to-check-and-add-transmission-fluid

Next, I would run the codes because I have seen the input shaft sensor go bad and cause this problem, but the scan should help confirm the issue.

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

Here is the location is the primary speed sensor. Check out the images (below). Please let us know how it goes.

Image (Click to make bigger)