Car Won’t Start, Bad Transmission: Troubleshooting and Solutions

Introduction

A car that won’t start can be a major inconvenience. If your car’s transmission is suspected to be the culprit, it’s important to troubleshoot the problem and find a solution as soon as possible. In this article, we’ll discuss the most common causes of a car not starting due to a bad transmission and provide step-by-step instructions on how to fix the problem.

Troubleshooting a Car That Won’t Start Due to a Bad Transmission

1. Check the Transmission Fluid

Low or contaminated transmission fluid can cause a variety of problems, including difficulty shifting gears and starting the car. Check the transmission fluid level and condition by following these steps:

• Locate the transmission fluid dipstick. It is usually located near the engine oil dipstick.
• Pull out the dipstick and wipe it clean with a rag.
• Reinsert the dipstick fully into the transmission and pull it out again.
• Check the fluid level on the dipstick. It should be between the “full” and “add” marks.
• Inspect the fluid color and condition. It should be bright red and free of debris.

If the transmission fluid is low, add the recommended type of fluid until the level reaches the “full” mark. If the fluid is dark or contaminated, it should be replaced.

2. Inspect the Transmission Filter

A clogged transmission filter can restrict fluid flow and cause shifting problems. Inspect the transmission filter by following these steps:

• Locate the transmission filter. It is usually located on the side of the transmission.
• Remove the transmission filter bolts and pull out the filter.
• Inspect the filter for debris and blockages.
• Replace the filter with a new one if it is clogged.

3. Check the Transmission Solenoids

Transmission solenoids are electronic components that control the flow of transmission fluid. Faulty solenoids can cause shifting problems and prevent the car from starting. Check the transmission solenoids by following these steps:

• Locate the transmission solenoids. They are usually located on the side of the transmission.
• Disconnect the electrical connectors from the solenoids.
• Use a multimeter to test the solenoids for continuity. A solenoid that is not working will have no continuity.
• Replace any faulty solenoids with new ones.

4. Inspect the Transmission Torque Converter

The transmission torque converter is a hydraulic coupling that connects the engine to the transmission. A faulty torque converter can cause shifting problems and prevent the car from starting. Inspect the transmission torque converter by following these steps:

• Locate the transmission torque converter. It is located between the engine and the transmission.
• Remove the torque converter bolts and pull out the torque converter.
• Inspect the torque converter for damage or leaks.
• Replace the torque converter if it is damaged or leaking.

Solutions for a Car That Won’t Start Due to a Bad Transmission

Once you have identified the cause of the problem, you can begin to fix it. Here are some solutions for a car that won’t start due to a bad transmission:

1. Add or Replace Transmission Fluid

If the transmission fluid is low or contaminated, add or replace it as needed. Refer to your vehicle’s owner’s manual for the recommended type of transmission fluid.

2. Replace the Transmission Filter

If the transmission filter is clogged, replace it with a new one. Refer to your vehicle’s owner’s manual for the recommended replacement interval.

3. Replace the Transmission Solenoids

If any of the transmission solenoids are faulty, replace them with new ones. Refer to your vehicle’s owner’s manual for the recommended replacement procedure.

4. Replace the Transmission Torque Converter

If the transmission torque converter is damaged or leaking, replace it with a new one. This is a complex repair that should be performed by a qualified mechanic.

Conclusion

If your car won’t start due to a bad transmission, it’s important to troubleshoot the problem and find a solution as soon as possible. By following the steps outlined in this article, you can diagnose the cause of the problem and repair your car’s transmission. If you are not comfortable performing any of these repairs yourself, be sure to contact a qualified mechanic for assistance.