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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.
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Check light is on why?
check engine light means a problem with the emission system
Will the check engine light come on if a wheel bearing is bad?
No - usually the Check engine light is for the emission control system
Why is the check engine light is on?
Problem with emission system have vehicle scanned to determine problem
Does check engine light come on with a bad u-joint on a ford f150?
No - check engine light is related to emission control system
What needs to be done when check engine light on?
Have vehicle scanned to determine the problem - usually in the emission system Have vehicle scanned to determine the problem - usually in the emission system
Does the check engine light mean low oil?
No it does not. It means there is a problem in the emission system. Need to have engine scanned with a engine scanner.
Why is the check engine light on in your cavalier?
A problem with the emission system. Need to have trouble codes checked.
Why is your Nissan largo check engine light flashing?
The check engine light is flashing due to a problem with the emission system. I flashing check engine light usually indicates a random engine misfire.
What does the check engine warning light mean on a Mitsubishi Pajero 2002?
Check engine light refers to the emission system - have vehicle scanned to determine problem
Why is my check engine light is on?
Usually a problem with the emission control system- have vehicle scanned to determine the problem
What is check engine light code p0453 on a 2001 blazer?
evaporator emission system pressure senser
What does the check engine light mean on a 2000 Honda Accord?
Computer has detected a problem with the emission's system.
