A car's transmission is responsible for the speed-torque conversion when you shift or switch gears during driving. If you shift or change gears while driving, and your car revs up, it may be time for you to change your transmission filter. Here's how you can replace your old transmission filter with a new one.
- Let your car cool down. If you just used your car, let it cool down first. You don't want to suffer minor burns from the fluid inside the car transmission.
- Jack up your car. This will lift the car a bit and will help you to easily slide underneath it. It will also give you more space underneath the car to work with. Always remember to put in the jack stand before going underneath the car for your safety.
- Remove the transmission dip stick. Set it aside for now.
- Let the fluid out. Remove the drain plug from your transmission to let the fluid out. If yours doesn't have one, place a catch pan underneath your transmission pan. Then remove the bolts holding the transmission pan in place leaving two bolts in one side. This will let the fluid out into your catch pan.
- Draining the fluid. Once the fluid has been drained, remove the last two bolts holding the transmission pan in place.
- Remove the transmission filter. Check the transmission pan for any dirt you can find. Then remove the transmission filter using a scraper. Be careful in doing this, making sure you don't cause any dents or scratches in the transmission pan. If your transmission pan includes a magnet, clean this off as well, removing the collected steel dusts. Clean the transmission pan and let it dry.
- Change the old transmission filter. Now that your transmission pan is dry, you can change the old transmission filter with a new kit. Apply weatherstrip cement between the edges of the transmission pan and the transmission filter. After putting them together, clean the edges to make sure that there's no weather cement residue on the holes where the bolts should go. Then get the transmission pan, and bolt it back underneath your car.
- Put in the transmission fluid. Once you have placed the transmission pan back into place, pour in half of the recommended automatic transmission fluid. Check the cold level on the dip stick. If it hasn't reached the cold level yet, slowly pour back the remaining fluid in small increments, checking the cold level on the dip stick every now and then. Do this until you reach the cold level.
- Check the engine. Now that you have reached the cold level, lower down the car and check the engine. Let the vehicle run idle until it reaches the operating temperature. Shift into each of the gears and check for overdrive transmission. Make the necessary adjustments on the transmission fluid depending on the level.
- Check for leaks. Let the car cool down for a bit again, and then raise it up again using the transmission jack and the jack stand. Check if there are any transmission fluid leaks. If there are any leaks, you can remove the transmission pan again and make sure you properly put it into place, or you can have a mechanic check it for changing instead. If you can afford a new transmission, better do that than having a transmission flush. You can probably find it cheaper if you buy a new transmission from your car manufacturer like Honda, Toyota, Ford, Cadillac, or Mercedes-Benz.
Always remember to change your transmission filter every 60,000 miles that your car travels. And if you don't have the proper tools to have it changed, never hesitate to get a mechanic's help.