Car Won’t Start: Transmission Locked

Introduction

If your car won’t start and the transmission is locked, it can be a frustrating and inconvenient situation. There are several possible causes for this problem, and the solution will vary depending on the underlying issue. In this post, we will explore the most common causes of a locked transmission and provide step-by-step instructions on how to troubleshoot and resolve the problem.

Common Causes of a Locked Transmission

Here are some of the most common causes of a locked transmission:

• Low transmission fluid: If the transmission fluid is low, it can cause the transmission to slip and eventually become locked.
• Bad transmission filter: A dirty or clogged transmission filter can restrict the flow of fluid and cause the transmission to overheat and lock up.
• Faulty transmission solenoid: A solenoid is an electronic component that controls the flow of fluid within the transmission. If a solenoid fails, it can cause the transmission to lock up.
• Mechanical failure: In some cases, a mechanical failure within the transmission can cause it to lock up. This could be due to worn gears, damaged bearings, or a broken drive shaft.

Troubleshooting and Resolution

To troubleshoot and resolve a locked transmission, follow these steps:

1. Check the Transmission Fluid

Start by checking the transmission fluid level. If the fluid is low, add the correct type of fluid until it reaches the full mark on the dipstick.

2. Replace the Transmission Filter

If the transmission fluid is full but still locked, replace the transmission filter. This is a relatively simple task that can be performed at home with basic tools.

3. Test the Transmission Solenoids

If replacing the transmission filter does not resolve the problem, you can test the transmission solenoids. This requires a diagnostic tool and some electrical knowledge. If a solenoid is found to be faulty, it will need to be replaced.

4. Inspect for Mechanical Failure

If all of the above steps have been performed and the transmission is still locked, it is possible that there is a mechanical failure within the transmission. This will require a professional diagnosis and repair.

Conclusion

If your car won’t start and the transmission is locked, it is important to troubleshoot and resolve the problem as soon as possible. By following the steps outlined in this post, you can diagnose and fix the majority of locked transmission problems. However, it is important to note that some mechanical failures may require professional attention.