How to Fix Automatic Transmission in Car

Introduction

An automatic transmission is a complex piece of machinery that can be difficult to fix. However, with the right tools and knowledge, it is possible to repair an automatic transmission yourself. This guide will provide you with the steps necessary to fix an automatic transmission in a car.

Tools and Materials

• Automatic transmission fluid
• Transmission filter
• Transmission pan gasket
• Ratchet and socket set
• Wrench
• Screwdriver
• Funnel

Procedure

1. Drain the Automatic Transmission Fluid

The first step is to drain the automatic transmission fluid. To do this, locate the transmission pan and remove the drain plug. Allow the fluid to drain into a drain pan.

2. Remove the Transmission Pan

Once the fluid has drained, remove the transmission pan. Be careful not to spill any fluid. Clean the pan and the gasket surface on the transmission.

3. Inspect the Transmission Filter

Inspect the transmission filter for any signs of damage or wear. If the filter is damaged, it will need to be replaced.

4. Replace the Transmission Filter

To replace the transmission filter, simply remove the old filter and install the new filter. Be sure to tighten the filter securely.

5. Replace the Transmission Pan Gasket

Replace the transmission pan gasket. Be sure to clean the gasket surface on the transmission and the pan before installing the new gasket.

6. Reinstall the Transmission Pan

Reinstall the transmission pan and tighten the bolts securely. Be careful not to overtighten the bolts.

7. Add Automatic Transmission Fluid

Add automatic transmission fluid to the transmission. Be sure to check the fluid level regularly and add fluid as needed.

8. Test the Transmission

Start the car and test the transmission. Make sure that the transmission shifts smoothly and correctly.

Troubleshooting

If you are having trouble fixing an automatic transmission, there are a few things you can do. First, check the fluid level. If the fluid level is low, add fluid and bleed the system.

If the fluid level is correct, the next step is to check the transmission filter. If the filter is clogged, it will need to be replaced.

If the filter is not clogged, the next step is to check the transmission solenoid. The solenoid is a small electrical device that controls the transmission. If the solenoid is faulty, it will need to be replaced.

If the solenoid is not faulty, the next step is to check the transmission valve body. The valve body is a complex mechanical device that controls the flow of fluid in the transmission. If the valve body is faulty, it will need to be repaired or replaced.

Conclusion

Fixing an automatic transmission can be a complex task. However, with the right tools and knowledge, it is possible to repair an automatic transmission yourself. If you are having trouble fixing an automatic transmission, consult a qualified mechanic.