check engine light on but car runs fine reddit

When you put in the new tank of ethanol free fuel its possible you just reseated the gas cap gasket better so the evaporative leak was gone but then the gasket started leaking again. If it goes haywire poor fuel economy will result.

How To Reset A Check Engine Light 7 Steps With Pictures

If the light is just on its usually not harmful per se.

. Sometimes the check engine light comes on to let you know that theres a problem with the cars internal diagnostic mechanism. You should never ignore the code as it could lead to something major if you do not address it. The check engine light can sometimes go away on its own if the problem stops persisting.

Unfortunately many people assume that the appearance of a check engine light when everything seems fine with their vehicle is just a glitch that can be ignored. If the vehicle seems to be running good then it may be related to the evaporative emissions system or something else related to the emissions. Use your senses and listen for any unusual sounds watch for shaking or surging.

Put the keys in your ignition and turn your ignition on and off consecutively after a second in each step. The check engine light can come on for varies reasons and it could be a minor or major problem If it comes on while driving dont panic. A professional mechanic can connect a scan tool or code reader to your vehicles OBD port which is usually located in the steering column in order to retrieve this diagnostic code.

Switching the ignition on and off is also one method of hard reset without disconnecting batteries. Its possible its just your fuel cap thats a common trigger of check engine lights. If nothing seems to be acting strange then it is probably safe to.

This is related to the condition of the MAF sensor the oxygen sensor catalytic converter and spark plugs. Many think ignoring a check engine light will make one go away instead itll only make the underlying problem grow worse over time that could eventually result in a major breakdown that requires. The air intake of the engine is highly technical.

When the check engine light comes on your cars computer which is often referred to as a control module will store a corresponding diagnostic trouble code DTC in its memory. If my code is transmission-related often a flush-and-fill transmission service 150 to 200 will solve the problem. Pay attention to how your vehicle is behaving.

The most common cause of this is when you dont tighten the gas cap all the way if your car has one. That means the system could be finding a problem that doesnt exist or it could be that loose wire systems are creating a false positive in the system. Once it is done see if the engine check light is still coming on or not.

The check engine light will also turn on if your car is experiencing poor fuel economy. If it comes back then you can get it checked. There are many systems on the car and it still can right well even with a fault.

But if my tranny is shot figure on. Do a brake and steering check. What leads the check engine light on but car runs fine well in this video on the engine management light that comes on I will show everything on how to res.

There is a fault code stored for the light. YES you can continue to drive the vehicle. Turning the Ignition On and Off.

Now it may or may not be associated with a performance or rough running condition. Up to 25 cash back The check engine light comes on for emissions purposes ONLY.

Non Car Guys Worry To Much About A Check Engine Light R Xterra