The check engine light (service engine soon) comes on and stays on when a problem is detected by the self diagnosis system of your vehicle. Generally, the problem is in the emissions or something that is affecting the effectiveness of the emissions, but other causes can trigger the light to come on, too. To determine the cause, the vehicle will need to be taken to AutoZone or a shop that has an OBD2 scanner, or for 1995 and earlier models, an OBD1 scanner, While a scanner will not give you the magic answer, it will give you a code that narrows down the problem area.
this is for safety so engine does not get ruined,check oil level!!
You can buy the check engine computer and the book comes with it. I know, I bought one. When your check engine light comes on, you plug it in and check the engine and it will give you the code and you look in the book for that code and it gives you the answer.
If it is easy, your gas cap is not on correctly.
The check engine light would come on.
The light could come on for a number of reasons. The vehivle would have to be hooked up to a scanner to determine the engine code or codes. After you determine the codes you can isolate and fix the probelem. If the check engine light is on there will be a computer code that will appear on the scanner.
The engine coolant temp sensor can do that. If you have a check engine light on, have the codes read.
You need to connect a OBD-II Scanner to find out.....
I have a 2006 Chevrolet C4500 Duramax Diesel and I would like to know how to turn off or reset the check engine light on the truck.
If a knock sensor was bad, the check engine light would be illuminated and the code(s) set would indicate so.
Check gauge? Never heard of a check gauge light. If you are referring to the check engine light it is on because there is a problem with the emissions system. You need to have the ECU scanned by a professional.
If the check engine light is illuminated, start with scanning for codes.
Replacing the water pump will not cause the check engine light to come on. Either it is a coincidence or you have accidentally disconnected a wire or damaged a sensor somehow.