Transmission Fluid Check
Many of today's automatic transmissions do not have a dipstick. They are sensitive, which discourages people from accidentally adding the wrong fluid. Some transmissions contain a fluid level check or overflow plug instead of a dipstick. Remove this plug to check the fluid level.
Check with the manufacturer's specifications for any special procedures before proceeding:
- Bring the transmission to operating temperature, safely raise the vehicle, and remove the plug.
- The transmission is overfilled if fluid pours from the check port. Allow the fluid to drain, and the level self-corrects.
- If a trickle or drip of transmission fluid comes from the port, the fluid level is correct.
- If no fluid drips from the port, the fluid level is low; add some ATF and recheck the level. It should be at the base of the fluid level check port with just a drip or trickle dripping out.
Automatic transmissions contain a dipstick with hot and cold level markings. Cold is room temperature of 60° to 80° and hot is 160° to 180°. The vehicle must be on a level surface, bringing the transmission to operating temperature.