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Why would a Check engine light goes on for no apparent reason?
Wiki User
∙ 18y ago
honestly i dont know but if you go to your local parts place EX:autozone or advance auto parts they can tell you Pull the codes from the computer, match the code to the troubleshooting procedure, follow the procedure to find the source. Repair the source, light will go out if that was the only problem. There are "monitors" or self tests the computer runs the car through a drive cycle, if a problem occurs, it may not run all of the self tests until that problem is taken care. Therefore, another problem may exist. It is emission related. OR hook up a scanner that is capable of clearing codes, and hope that none are still active.
Wiki User
∙ 18y ago
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Why is my check engine light coming on in my 97 legacy Brighton for no apparent reason...160k miles on it.?
The check engine light comes on and stays on when a problem is detected by the self diagnosis system of your vehicle. Generally, a check engine light is lit when there is a problem in the emissions or somthing that is affecting the effectiveness of the emissions.
Will your truck use more fuel if the check engine light is on?
That depends entirely on the reason why the check engine light is on.
Can a missing gas cap cause your check engine light come on?
Yes, this is often the reason why the check engine light comes on.
Your check engine light just came on and at the same time noticed your drl are off Is that the reason for the check engine light to be on?
There are pages and pages of things that can cause a check engine light. You need to have it checked with a scantool. Then the code can be diagnosed and repaired.
How can you disconnect the check engine light?
There is no reason why you would want to disconnect your check engine light, it is there to warn you that there is a problem. All you need to do is have a free test run on it at your local auto parts store, they will tell you whats wrong and then you can fix it. However, there are in fact plenty of reasons why you would want it disconnected. For example, when it lights up for no apparent reason frequently, and/or is aesthetically unappealing. Who wants to run to an "auto parts store" to have it serviced every time the light comes on, usually for no reason?
How do you reset the check engine light on a 1998 ford ranger and theres nothing wrong with the engine?
If the check engine light is on, there's something wrong with the engine. Or, the computer is bad. One or the other. They don't set a light for no reason.
How do you reset the check engine light on a 2003 dodge intrepid?
If you fix the reason the light came on in the first place the check engine light will reset itself after a few drive cycles.
My check engine restricted performance light comes on interminently is there a concern?
Yes, the check engine light is coming on for a reason. You need to take your vehicle into a service center.
Check engine range rover supercharged?
The check engine light can come on for a variety of reasons. You will have to have the vehicle connected to a code reader to determine the specific reason for the light to be on.
What is the reason for engine light to come on 1992 Honda Accord?
The Check Engine Light comes on when the ECU detects a problem with the emissions system.
Will having my ecm help with reset?
Resetting the ECM without fixing the reason why the check engine light came on will only lead to the check engine light coming back on soon.
Who do you Reset the check engine light in a 1999 Toyota Camry?
You have to find the reason why it came on.
