Transmission Fluid Change Procedures

Traditional Drain and Fill

This is the most basic type of transmission fluid service:

1. Vehicle Preparation:Warm up transmission to operating temperature
2. Lift Vehicle:Raise vehicle on lift or secure with jack stands
3. Drain Fluid:Remove drain plug from transmission pan and allow fluid to drain completely
4. Pan Service (Optional):Remove pan, clean, and replace gasket if necessary
5. Replace Filter:Install new transmission filter if accessible
6. Refill:Add new transmission fluid to proper level
7. Check Level:Start engine, check fluid level, and inspect for leaks

Full Fluid Exchange (Machine Method)

This method replaces nearly all transmission fluid using specialized equipment:

1. Initial Check:Verify fluid condition and level
2. Machine Connection:Connect transmission fluid exchange machine to transmission cooler lines
3. Exchange Process:Run machine to pump out old fluid while simultaneously adding new fluid
4. System Flush:Clean transmission system with cleaning solution if needed
5. Quality Check:Verify fluid color and condition
6. Final Check:Test drive vehicle and check for proper operation

3x3 Method

This manual method replaces approximately 95% of the fluid through multiple drain and fills:

1. First Drain:Drain transmission and refill with new fluid
2. Drive Cycle:Drive vehicle to circulate fluid
3. Second Drain:Repeat drain and fill process
4. Second Drive:Drive vehicle again
5. Third Drain:Perform final drain and fill
6. Final Check:Verify fluid level and test vehicle operation

Important Notes:

• Always use manufacturer-specified transmission fluid
• Check service manual for specific capacity and procedures
• Some vehicles require special adaptation procedures after fluid change
• Transmission fluid should be changed according to manufacturer maintenance schedule

Note: Specific procedures may vary by vehicle make and model. Always consult your vehicle's service manual for exact specifications and procedures.