For vehicles with an automatic transmission, you want to ensure the valve body will work, especially since this important equipment serves as the main control center of the vehicle. The process works by directing the pressurized transmission fluid to a network of valves that will assemble the right clutch packs. The valves will then draw on the pressure from the various hydraulic signals to determine the gear set to use. When it stops working, there can be some issues with your vehicle.
Modern automatic transmission valve bodies will come with their own sensors. This helps to measure the different aspects of the transmission, including the engine load, throttle position, pedal position, brakes, and speed. It will then send this information to the onboard engine management computer, which helps the rest of the vehicle perform properly and alerts you when there is a significant problem with the transmission.
It is essential to know the signs that your transmission is going bad. Recognizing some of the main signs of a bad transmission allows you to get it to a mechanic to fix it long before you are stuck on the side of the road. With the proper fix, your vehicle will shift gears, which can lead to a stall-out when on the road.
What Are The Signs Of A Bad Transmission?
The first items to explore are common indicators that your transmission is not working correctly for you. These signs are often noticeable, even if you do not realize that the transmission is the main problem that is causing them. Some of the common signs of a bad transmission include:
- You hear banging or knocking noises in the vehicle, especially when applying pressure to the brakes.
- The car slows down when you put it into reverse or try to drive backward.
- The shifting stick will often slip when you try to change the gears.
- When you downshift the vehicle, you may notice that the transition is not smooth.
- You face problems when it is time to change the gears to drive or go in reverse.
- The vehicle’s transmission tends to get stuck when you put it into neutral.
When you notice any of the signs above, getting the transmission checked out immediately is important. Ignoring the problem can make it worse and result in an expensive vehicle repair.
Diagnosing And Replacing Your Transmission
When you notice some of the signs above, it is time to look at diagnosing the problem and then getting the transmission replaced as soon as possible. Your local automotive mechanic will have the necessary diagnostic tools to check whether the transmission is the problem.
You can take it to the body shop and have them run a test to see whether the transmission is the issue or not. They can also see whether it is an electronic or a mechanical failure and provide the right solution for your vehicle.
The average cost for a transmission valve body piece is between $200 to $1000, depending on the type of vehicle. This can make the total cost of valve body work to range from $400 to $1500 for most vehicles. You will need to add in the labor cost of having the mechanic do the work, which can range from two to four hours, depending on their tools and experience. While this is an expensive vehicle component, keeping you safe is worth the investment.
While it is possible to do the work on your transmission by yourself, this can take time, and many car owners worry they need to gain the skills to get it done. Working with a certified mechanic may be expensive. Still, it can help complete the work quickly and prevent further vehicle problems.
How To Replace The Transmission?
A few steps are necessary to help replace the transmission and ensure it continues working well in your vehicle afterward.
The steps include:
- The vehicle is raised up and supported well. After you have positioned the jack stands to ensure proper safety and support, lower them so the vehicle rests securely.
- Remove the vacuum hose leading from the intake manifold to the transmission modulator valve.
- Pull the hose off here and check whether any transmission fluid is inside. If you find some in there, this is a significant indication that the manifold is defective.
- Remove your modulator valve. You can do this by carefully removing the bolts from the bracket that is holding them into place.
- Install the new transmission modulator valve. You can do this by placing the actuating rod into the hole of your new valve. Then take your time to insert the valve into the receptacle hole too.
- Reinstall the bracket on the modulator, taking the time to secure it with bolts.
- Reconnect your vacuum hose to the transmission modulator valve and the intake manifold.
- When you feel confident that everything is in the right place, remove the jack stands — you are free to once more enjoy your vehicle.
Replacing this part can help ensure the transmission is in good working order, and you will have no further problems. If you do not feel comfortable doing the work on your own, you can take it to an auto body shop, and they can help you replace your transmission too.
The Bottom Line
Your transmission is responsible for many functions within the vehicle. When it works well, you can enjoy a smooth ride that will take you anywhere. But when something is wrong with the transmission, you need to fix it immediately.
The cost of fixing this issue will depend on the cost of the broken part and how much the mechanic you choose will require as a labor fee to get the work done. Getting the transmission fixed quickly will help your car last longer and can stop some of the harmful side effects of driving with a faulty transmission. Whether you do it yourself or trust the professionals, fixing the transmission can extend the life of your vehicle.
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