Some people may have never heard of the transmission valve body, which can be a problem if you need to have it replaced or repaired. But what is the transmission valve body, and why does it matter? Read on to learn more about this vital car part, including determining whether you need to get it fixed or replaced!
The Basics of How the Transmission Valve Body Works
The transmission valve body is a complex network of valves and sensors that serves as the transmission’s brain. This component directs pressurized fluid to the correct gear or clutch pack to ensure that the transmission shifts when it is supposed to based on driving conditions. If these valves are faulty or malfunctioning, it could compromise your car’s performance or even render it inoperable.
What are Signs of a Failing Transmission Valve Body
A failing transmission valve body will cause your car to shift poorly from park to drive or from park to reverse. Typically you will notice a delay of 2 or more seconds before the transmission will shift. Another common sign of transmission valve body issues is incorrect shifting while driving. If these valves are misfunctioning, you may notice your car unexplainably upshifts or downshifts at the wrong time.
In addition, you may experience transmission slipping or loud knocking sounds when the transmission upshifts or downshifts. These sounds usually indicate an issue with the valve body or solenoid. Finally, problems with the transmission control valve will usually trigger the check engine light. While many issues can cause the check engine light to come on, be on the lookout for any signs of transmission valve body problems.
What to Do if the Transmission Valve Body Is Bad
Suppose your mechanic diagnoses the valve body as the cause of your transmission problems. In that case, he will typically recommend replacing or rebuilding the existing valve body. While a rebuild can save money in some cases, it may be better to replace the valve body on high-mileage vehicles. Consult with your trusted mechanic to determine which is best for your car. Transmission valve body repair is not a simple repair. It can take an experienced mechanic up to three hours to complete.
If you notice any signs of a failing transmission valve body, don’t ignore them because the transmission will eventually fail. Instead, see your car care specialist as soon as possible to get your transmission valve body repaired or replaced and your car back to running and shifting smooth.