The check engine light turns on to inform the driver that the computer has detected a 'fault' and that the driver should address the problem. If the light is on constantly, it's considered a "minor" fault but something that needs attention as soon as you get a chance. If the light is flashing it means that something serious has been detected and you need to deal with it NOW!
You can either take the vehicle to a shop and have the mechanic connect a code reader to your vehicle
OR
you can take your vehicle to your local auto parts retailer and borrow, rent or buy a code reader that will tell you what's wrong.
---- Whichever you decide, you won't be able to guess what's wrong, and nobody can help you unless and until you connect the vehicle to a code scanner.
Often it's something relatively simple even though it may be a bit expensive. Oxygen sensors for example can be pricey and you should replace both sides at the same time. On the other hand it can sometimes be as simple as a loose gas cap. The code scanner is a great help and if you intend to do much of your own work it's good to have your own scanner. Scanners can be purchased for as low as $30
It will cause the check engine light to come on with no benefits.
no, door locks have nothing to do with check engine light.
If you have a "check engine" light on, start with having the codes read. A misfire code can tell you which cylinder or cylinders are having problems. A misfire could be the cause of your engine vibration.
it could be an issue related to your oxygen intake check oxy sensors if check engine light is on.
If you have a check engine light ON then you need to take it to a repair shop. A defective TPS can cause a hesitation or stall.
The only way you will know what is wrong ( there could be problems that do not affect the way it runs right now ) is to have the computer codes read. If the light is on there "is" a problem.
Yes, an unplugged sensor can cause a check engine light.
The key here is that each warning light is trying to tell you 2 different things. They are not likely to be related to each other.Research each light separately.NOTE: Fix the *cause* of the trouble codes and the lights will turn themselves off.See "Related Questions" below for more about check engine lights & Windstar ABS systems
No, oil level does not cause the check engine light.
no a burnt out headlight will not cause a check engine light but if you go to most of the part places they will check the check engine light for free
Yes, water can cause a misfire, which will cause the check engine light to flash.
If the engine runs smooth after the start up, check the choke system and egr valve first. If these are ok, run a computer code check to see if any codes show up.