Q: Check Engine light stays on

asked by on

I'm getting a "Check Engine" light. I've had the thermostat replaced, as well as the temperature sensor. The dealership says my engine is fine but the light is still On!! Can you tell me why this is happening?

A: Hello. Without knowing the code and the pro...

Hello. Without knowing the code and the problem that is occurring then it will be hard for me to give you good information. From what has been replaced though, I am assuming that this is an issue with the cooling system. Most of the time if you get a cooling system code and these parts have been replaced and it does not repair it, then you have a circuit issue. It may be a bad connection at one of the sensors or it can be a failing computer. If you need to have this looked at further, consider YourMechanic, as a certified mechanic can come to your home or office to diagnose the Check Engine Light and recommend a repair.

Need advice from certified mechanic? Get help now!

Over 1000 mechanics are ready to answer your question.
The statements expressed above are only for informational purposes and should be independently verified. Please see our terms of service for more details

Get an instant quote for your car

Our certified mechanics come to you ・Backed by 12-month, 12,000-mile guarantee・Save up to 30%

Get a quote

What others are asking

Q: Heat

The most common reason for this after a repair is an air bubble in the system. Most of the time, if you completely warm the car, which means you have confirmed the thermostat is open by feeling the upper radiator...

Q: Missing lurching no power

Hello there, many different faults can cause your 1996 Chevy C2500 to misfire and stall like this. In a case like this, the truck should be thoroughly inspected to find the fault so that no more parts are replaced until...

Q: Where's vehicle speed sensor B ?

Hello, thanks for writing in about your Hyundai Azera. There isn't a certain answer for the sensor B. Here is the basic diagnostic route of trouble code P2159 to help you better understand the issue. If you'd like assistance with...

Related articles

How Do Power Car Windows Increase Passenger Safety?
Power windows are responsible for approximately 2,000 emergency room visits every year. When a power window closes, it exerts enough force to bruise or break bones, crush fingers, or restrict an airway. Though...
What Causes Hoses to Leak?
While the largest part of your engine is mechanical, hydraulics plays a significant role. You’ll find fluids at work in a number of different areas. Your car's fluids include: Engine oil Transmission...
How Long Does a Heater Control Valve Last?
Keeping the right amount of coolant in a car is essential in keeping the engine at the right temperature. Failing to have the right amount of coolant or even bad elements...