changing transmission fluid?

2012 HYUNDAI TUCSON
140,000 MILES • 4 CYL • 2WD • AUTOMATIC
Avatar
BHAMDOC1973
  • MEMBER
  • 2,007 POSTS
I have seen several videos some check the level with engine running others with it off, the check level plug is on side of the transmission pan. I would think car should be running but can you please check and let me know, please.
Apr 7, 2025 at 3:06 PM
Advertisement
Avatar
STEVE W.
  • ✓ASE Certified Mechanic
  • 15,200 POSTS
  • ASE Certified Mechanic
The instructions are sort of vague. It says to start the engine, run it through the gears, then lift it and check the level. If oil runs out it's over filled, if none comes out its low. I would say you leave it running for the check.
Images (Click to enlarge)
Professional Diagram for 2CarPros Members
Click here to log in and view diagram.
Professional Diagram for 2CarPros Members
Click here to log in and view diagram.
Professional Diagram for 2CarPros Members
Click here to log in and view diagram.
Apr 7, 2025 at 5:26 PM
Avatar
BHAMDOC1973
  • MEMBER
  • 2,007 POSTS
Yes, that's what I am thinking, because when it's off of course there will be fluid and maybe a lot in the pan. Since they didn't state to shut it off, I would assume that.
Apr 7, 2025 at 5:58 PM
Avatar
STEVE W.
  • ✓ASE Certified Mechanic
  • 15,200 POSTS
  • ASE Certified Mechanic
I would say the same.
Apr 8, 2025 at 10:21 AM
Join 2CarPros for free, one of the most advanced car repair communities on the internet. From first-time drivers to seasoned mechanics, everyone is welcome to reply, share details, and get better answers. You can add a temporary image or video first; uploads are limited to 20 MB.
Ask a Free Question
Repair Safety Notice: This information is for general instructional purposes only. Vehicle repair can be dangerous. Verify all information, follow manufacturer service procedures, use proper tools and safety equipment, and consult a qualified repair shop when needed.