Is It Normal for a Rebuilt Transmission to Shift Hard

Are you experiencing a jarring sensation when shifting gears in your newly rebuilt transmission? Or, perhaps, you’ve been driving for a while and have noticed that your transmission is now shifting harder than it did before. Either way, you’re likely wondering if this is normal or cause for concern.

The truth is, “hard shifting” can be a common issue with rebuilt transmissions. But what exactly causes it? And how can you tell if it’s something to worry about? In this article, we’ll delve into the world of transmission rebuilding and explore the reasons why hard shifting may occur. Whether you’re a mechanic or simply someone looking for answers about their vehicle’s performance, keep reading to find out more about this frustrating problem.

Understanding Rebuilt Transmissions: What You Need to Know

What is a rebuilt transmission?

A rebuilt transmission refers to a transmission that has been disassembled and reconditioned by replacing worn-out or faulty components with new ones. The process involves cleaning, inspecting, and replacing parts such as bearings, gaskets, and seals. Rebuilding a transmission can be done by the vehicle owner or a professional mechanic.

Benefits of a rebuilt transmission

There are several benefits of rebuilding your transmission instead of buying a new one. Firstly, it is cost-effective since it is cheaper than purchasing a new transmission. Secondly, you get to keep your original transmission which may have sentimental value or perform better than other options in the market. Lastly, when done correctly by an experienced mechanic, a rebuilt transmission can restore your vehicle’s performance.

How long does a rebuilt transmission last?

The lifespan of a rebuilt transmission depends on various factors such as driving habits and maintenance practices. Typically, a well-maintained and properly installed rebuilt transmission can last up to 100,000 miles or more.

Common Reasons Why Your Transmission Needs to be Rebuilt

Lack of maintenance

Lack of regular fluid changes and inspections can cause wear and tear on the internal components leading to failure. It is recommended that you change your transmission fluid every 30,000-50,000 miles depending on your vehicle’s make and model.

Overheating

Excessive heat generated during operation can damage the internal components of the transmission resulting in failure. This could be caused by towing heavy loads for extended periods without allowing the engine to cool down or driving in extreme weather conditions.

Damaged parts

Internal components such as gears, bearings or seals can become damaged due to wear and tear, leading to a need for replacement.

How to Tell If Your Rebuilt Transmission is Shifting Hard

If you notice that your vehicle’s gears are shifting harder than usual, this could be an indication of a problem with your rebuilt transmission. Signs of hard shifting include:

• Loud clunking noise when changing gears
• Vibration or shaking during gear changes
• Delayed engagement when shifting from park to drive or reverse
• Slipping or jerking between gears

Is It Normal for a Rebuilt Transmission to Shift Hard During Break-In Period?

After rebuilding your transmission, it is normal for it to shift harder during the break-in period. This period typically lasts for the first few hundred miles after installation. During this time, the new components are settling into place and adapting to each other, which may cause rough shifting.

When Should You Worry About a Rebuilt Transmission That Continues to Shift Hard?

If you have completed the break-in period and your transmission continues to shift hard, it may indicate an underlying problem that requires attention. Some possible causes of continued hard shifting include:

• Faulty sensors or solenoids
• Damaged internal components
• Inadequate fluid levels or dirty transmission fluid
• Incorrect installation or adjustment of parts

It is important to have your vehicle inspected by a qualified mechanic if you experience any persistent issues with hard shifting.

The Role of Installation and Maintenance in Preventing Hard Shifting in a Rebuilt Transmission

Proper installation and maintenance are essential for preventing hard shifting in rebuilt transmissions. During installation, all parts should be installed correctly and adjusted to the manufacturer’s specifications. Regular maintenance such as fluid changes and inspections can help identify and address any potential problems before they cause damage.

Adjustments That Can Be Made to Fix a Rebuilt Transmission That Shifts Hard

If your rebuilt transmission is shifting hard, there are several adjustments that can be made to correct the issue. Some possible solutions include:

• Adjusting the transmission shift cable or linkage
• Replacing damaged sensors or solenoids
• Flushing out old fluid and replacing it with new clean fluid
• Reprogramming the transmission control module

It is important to have these adjustments made by a qualified mechanic who has experience working with rebuilt transmissions.

Should You Consider Replacing Your Rebuilt Transmission if it Continues to Shift Hard?

If your rebuilt transmission continues to shift hard despite attempts at adjustment, it may need replacement. However, before making this decision, you should consult a qualified mechanic who can diagnose the problem and recommend appropriate solutions. In some cases, minor repairs may be sufficient to resolve the issue and prevent the need for replacement.

In conclusion, it is not normal for a rebuilt transmission to shift hard. If you experience this issue, it may indicate a problem with the transmission that should be addressed by a professional mechanic.