What to know
- Use a ratchet or wrench to remove the drain plug from the bottom of the transmission pan.
- If the fluid level is high, drain some of the fluid until it reaches the fill line on the dipstick.
- However, if you are not comfortable working on your own vehicle, you can take it to a mechanic to have the ATF drained.
Automatic transmission fluid (ATF) is a vital component of your vehicle’s transmission system. It lubricates moving parts, helps cool the transmission, and transfers power from the engine to the wheels. Over time, ATF can become contaminated with dirt, metal shavings, and other debris. This can cause your transmission to slip, shudder, or even fail completely.
Draining and replacing ATF is a relatively simple maintenance task that can help extend the life of your transmission. Here’s a step-by-step guide on how to drain automatic transmission fluid completely:
Materials You’ll Need
- New ATF (check your owner’s manual for the correct type)
- Drain pan
- Funnel
- Ratchet or wrench
- Gloves
- Safety glasses
Safety Precautions
- Park your vehicle on a level surface and engage the parking brake.
- Allow the engine to cool down before starting work.
- Wear gloves and safety glasses to protect yourself from hot fluid and debris.
Step 1: Locate the Transmission Pan
The transmission pan is typically located at the bottom of the transmission. It is usually held in place by bolts or screws.
Step 2: Place the Drain Pan
Position the drain pan under the transmission pan. Make sure the pan is large enough to catch all of the fluid that will drain out.
Step 3: Remove the Drain Plug
Use a ratchet or wrench to remove the drain plug from the bottom of the transmission pan. Be careful not to drop the plug into the drain pan.
Step 4: Drain the Fluid
Allow the ATF to drain completely into the drain pan. This may take several minutes.
Step 5: Replace the Drain Plug
Once all of the fluid has drained out, replace the drain plug. Tighten the plug securely, but do not overtighten it.
Step 6: Add New ATF
Use a funnel to add new ATF to the transmission. Add the fluid until it reaches the fill line on the dipstick.
Step 7: Check the Fluid Level
Start the engine and allow it to idle for a few minutes. Then, check the fluid level on the dipstick. The fluid level should be between the “min” and “max” marks on the dipstick.
Troubleshooting
- If you cannot locate the transmission pan, consult your owner’s manual or a repair manual.
- If the drain plug is stuck, use a penetrating oil to loosen it.
- If the fluid is black or smells burnt, your transmission may need to be serviced by a mechanic.
- If the fluid level is low, add more ATF until it reaches the fill line on the dipstick.
- If the fluid level is high, drain some of the fluid until it reaches the fill line on the dipstick.
When to Drain ATF
The frequency with which you should drain ATF depends on your driving habits and the type of vehicle you drive. Most manufacturers recommend draining ATF every 30,000 to 60,000 miles. However, if you drive in severe conditions, such as stop-and-go traffic or towing heavy loads, you may need to drain ATF more frequently.
Benefits of Draining ATF
Draining ATF can provide a number of benefits, including:
- Improved transmission performance
- Reduced risk of transmission failure
- Extended transmission life
Wrap-Up
Draining automatic transmission fluid completely is a simple maintenance task that can help extend the life of your transmission. By following the steps outlined in this guide, you can drain ATF completely and ensure that your transmission is operating at its best.
Questions We Hear a Lot
Q: How often should I drain my ATF?
A: Most manufacturers recommend draining ATF every 30,000 to 60,000 miles. However, if you drive in severe conditions, such as stop-and-go traffic or towing heavy loads, you may need to drain ATF more frequently.
Q: What type of ATF should I use?
A: Check your owner’s manual for the correct type of ATF for your vehicle. Using the wrong type of ATF can damage your transmission.
Q: Can I drain ATF myself?
A: Yes, draining ATF is a relatively simple maintenance task that can be done at home with a few basic tools. However, if you are not comfortable working on your own vehicle, you can take it to a mechanic to have the ATF drained.