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A check engine light is relatively universal and can mean a variety of things. Sometimes they're detailed in your owner's manual, and for others, you may need a diagnostic. Whatever the case may be, do not just let it slide. A check engine light can mean a simple problem or something more serious; it's never worth the risk.
A check engine light is most often related to engine components, but that isn't always the case. They say you're better safe than sorry, and we agree. Always investigate the cause of a check engine light with the help of a trained Hino mechanic.
Connect it to a professional grade scan tool computer.
Sometimes the engine failsafe mode is triggered due to a sensor failure or an electrical glitch. It's also common for a security system fault to engage this warning light, which means it's not always a mechanical issue that's causing the failsafe.
Oct 31, 2018
Do you have black smoke or what looks like soot coming out of the tail pipe. The check engine light monitors fuel pressure through the computer and pressure regulator. It will come on if the pump pressure is too high or too low. If the pressure regulator is faulty it could cause excessive fuel consumption,
The CHECK engine light means Malfunction Indication Lamp (MIL). It is a yellow colored indicator which always keep the driver of the car informed about the performance of the engine sensors and the Electronic Control Module (ECM). It is always in the OFF state when the engine is running. If it becomes on while the engine is running it become necessary to get the car be checked and scanned for any one or more problems which have occurred in the Electronic Fuel Injection (EFI) system.
the check engine always goes keyon. that means the ECU THINKS, its happy, (not dead the ECU) it means nothing else, until running. what year, car, and what country.
if car engine cranks fast but will not start. then you always check for spark since you fail to state car model , cant help more.
you need to have the check engine light repaired first most likely related to heat and or gas issue and a check engine light is not a 1 issue thing code will need to be pulled if you have a autozone they can pull it for free and theres where we need to start .could be anything from o2 sensor to a thermostat ect...
The check engine light is because all check engine light codes are caused by components that affect emissions. It's not actually an engine problem, it's a problem with either your O2 sensor, MAF sensor, fuel/air ratio, pyrometer, or exhaust.
you can start with an OBDII code reader, which you can get for free at your local parts store. This will tell you what component is malfunctioning, and then you can decide if it's worth fixing or not. But rest assured, the oil leak has nothing to do with your check engine light.
A check enginelight doesn’t always mean
a big problem or an expensive repair is ahead. However, driving a car
with the check enginelight on could mean that
you are doing further damage to the engine,
depending on the problem. It’s always best to get the vehicle checked
at your earliest convenience.
Because there are so many possible reasons for
the check enginelight to come on, pulling
the codes for the event can be helpful when the problem is not
immediately evident. Even if the check enginelight is only on a short
time, a code will be stored in the ECU for later retrieval.
I suggest scannin your ECU to know which fault code there.
Your vehicle’s computer system has self-testing capability. When the computer senses that there is a problem with some of the components it stores the correspondent trouble code(s) in its memory and lights up the Check Engine or Service Engine Soon lights to tell you that there is a problem and you should have the car diagnosed and repaired. Not fluid related, but could be a small problem that's easy to fix now. Even a loose gas cap can turn the light on. Have a code scan, that's the starting point.
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