When they see the check engine light on their car’s dashboard, most people immediately assume that something is wrong with the engine itself. This is not always right. Sometimes, that light is actually showing a problem with your transmission.
Below, this transmission repair specialist in Wayne, Illinois, is going to explain how the check engine light and transmission are connected. You will also learn what to do if you see that light turn on.
What’s your check engine light trying to tell you?
Your check engine light is part of your car’s built-in monitoring system. Newer cars have sensors everywhere…in the engine, exhaust, and even the transmission. If any of these sensors detect something unusual (like low pressure or a slipping gear), it activates the check engine light.
If you see the light, it does not automatically mean bad news. Sometimes the problem can be as minor as a loose gas cap. But if you ignore it, you could miss early signs of transmission failure.
Can the transmission make your check engine light turn on?
Your transmission has its own control system called the Transmission Control Module (TCM). It constantly communicates with the Engine Control Module (ECM) to make sure your car shifts gears smoothly.
If the TCM notices slipping gears, delayed shifts, overheating, or low fluid pressure, it sends an alert to the ECM. That is when your check engine light can turn on.
Two of the most common reasons for this are low transmission fluid or a failing torque converter. Even something like a worn speed or temperature sensor can throw off the TCM and make that light appear.
When that happens, a professional transmission repair specialist in Wayne, Illinois will use a diagnostic scanner to read the error codes. Those codes point directly to the problem, making it easier for the mechanic to fix.
How can you tell if the transmission is the real problem?
A check engine light on its own does not always tell the full story. Your car usually shows you other signs when the transmission is involved. You’ll just have to be cognizant of them.
For example, if the gears slip when you accelerate or the car hesitates before shifting. Some drivers also feel vibrations when driving, while others smell burnt transmission fluid.
If you see any of these signs along with the check engine light, take your car to your local transmission repair specialist immediately.
How do mechanics diagnose the reason behind the check engine light?
When you bring your car in, the first thing a mechanic will do is connect it with a diagnostic scanner to read the trouble codes. If the problem is transmission-related, the codes usually start with “P07” or “P08.” Each code points to a specific component, like a solenoid, pressure sensor, or internal clutch.
Then the specialist will check the transmission fluid. They will also test sensors and wiring to make sure everything is communicating properly.
Is it bad to drive with the check engine light on?
Don’t keep driving when the check engine light comes on. Even a minor problem, like low fluid or a faulty sensor, can cause clutch damage or even total transmission failure if you continue to ignore it.
A visit to a transmission repair specialist in Wayne, Illinois can help you avoid a hefty repair bill.
Looking for a transmission repair specialist in Wayne, Illinois?
As the top-rated transmission repair specialist in Wayne, Illinois, King Transmission Company can diagnose if your check engine light is related to the transmission. If any transmission issues are found, we can then make the necessary repairs so you can drive safely. Contact us today to schedule a service.
