How do you change the transmission fluid on a manual 1999 Honda Civic EX?

Answer 1

Just like the oil pan there is a drain bolt. Unscrew that bolt and drain the Transmission Fluid into a proper container. There should also be a filler bolt above the drain bolt. Put the drain bolt back in and take the filler bolt out. If accessible from the top, pour in the replacement fluid through a funnel and long hose. If you can wiggle the hose in from the top you may need a pump to get the fluid back in.

When you get enough fluid in it will start to run out of the filler bolt hole, that's normal. When the fluid stops running out you can put the filler bolt back in.

Start the car and let it run for a few minutes. You can drive it around slowly and carefully for a little while, but may want to check the fluid level after your drive and refill if needed.