Reason 2 Faulty Oxygen Sensor. Your Service Engine Soon Light Should Not Cause You to Panic.
For your cars engine to operate efficiently it requires a particular ratio of oxygen to gasoline.
Causes for service engine soon light. Here are some of them. Minor engine issues like a loose fuel tank cap. Time for a scheduled service.
Low level of any fluids Low oil coolant brake fluid etc Minor exhaust emission issues. What Does Service Engine Soon light Mean. This is one of the most common causes of the service engine indicator light to go on.
Spark plugs are an essential part of the combustion process in your engine. Here are some of the other common reasons that will cause the Check Engine or Service Engine Soon light to come on. Reason 2 Faulty Oxygen Sensor.
For your cars engine to operate efficiently it requires a particular ratio of oxygen to gasoline. When there is too little oxygen your engine will be running rich from gasoline that is left over from the combustion process. The engine service light starts glowing and the driver is left confused scratching their head to try and make sense of whats wrong with the vehicle.
At its most basic a lit CEL means that one of your vehicles sensors has detected a problem with the vehicles engine or powertrain and stored a trouble code detailing the issue. For these vehicles the meaning of the Service Engine SoonCheck Engine Light will vary greatly and could be an indication of anything from a notification of required scheduled maintenance minor problems major mechanical problems emissions system issue or an on-board diagnostic fault regarding one of the engines many electronic sensors. Other Causes The yellow or orange service engine soon light may mean something is wrong with your anti-lock brake or safety restraint systems there is a computer problem in your car or something is wrong with your emission system.
A cap left off one of your fluid containers can cause the light to turn on as can an overdue oil change. The service engine soon light is often mistaken for the check engine light. The check engine light is a light to warn you to a possible issue with your exhaust system or emissions system.
The service engine soon light can come on for minor issues like a loose gas cap or for more major problems such as possible engine failure. Your Service Engine Soon Light Should Not Cause You to Panic. Another possible culprit triggering the service engine soon light is misfiring spark plugs.
Spark plugs on older vehicles before 1996 needed to be changed every 40000 to 50000 kilometers. On more modern vehicles spark plugs can go to 150000 km before needing to be changed. Faulty spark plugs can cause your engine to misfire.
In general five common malfunctions can cause the check engine light to come on and some of them are simple to fix yourself. Lets take a look at the most common issues. Your oxygen sensor needs.
The engine light can be triggered by a number of issues of varying degrees of severity. Whatever the cause failure to get your Chevy vehicle checked out when the check engine light goes on could lead to further damage meaning costlier and more invasive repairs. Below is a list of the top 10 reasons why your Chevy check engine light may come on.
The coolant stays at a low temperature and this will cause the ECM or PCM to stay in an open loop. This open loop creates a state of pre-programmed parameters in which no diagnostic tests can be executed. Ford Check Engine Light CEL also known as service engine soon SES warning will stay on if a problem has been detected by the On-Board Diagnostic System OBD-II.
Ford check engine light will turn on when you turn on the ignition under normal operation but should turn off and stay off once you start the engine. If your BMW check engine light or service engine soon light stays on it means that the Onboard Diagnostic System also known as Digital Motor Electronics DME has detected a problem with the emission system engine or transmission. The engine light is also linked to fuel injection systems spark plugs and wiring and oxygen sensors.
If any one of these issues is the cause of the light it must be taken to a trustworthy automotive service center immediately. If it is not addressed right away you will notice serious ramifications. A loose fuel cap is one of the most common reasons why the check engine light turns on.
The cap is a crucial part of a cars fuel delivery system. It notably prevents gasoline fumes from leaving. First we need to know the reasons behind the Service Engine Soon SES light.
Here are some of the signs to lookout for when trying to figure out why SES keeps flashing. A Loose or an Open Gas Cap. When the Service Engine Soon light comes on this is the on-board computers way of telling you it sees a problem in one of the monitored systems.
It is NOT OK to drive it when the service engine soon light is flashing. A flashing light is letting you know that something is so wrong that continued vehicle operation can lead to permanent damage. Make sure to check the oil brake fluid and transmission fluid levels.
Low oil can cause some trouble codes to flash related to VVT.