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Check Engine Light
The check engine light comes on in a car when the engine is experiencing a problem. Ask questions here about your car's check engine light.
7,238 Questions
Why would your check engine light come?
your check engine light could come on for many different reasons, it could even be something as small as your gas cap isn't on tight enough but the best way to find out is to take it to autozone and use one of thier guns, it will show you everything that is wrong with the car to an extent and its free
it means that you have a problem with your car!
What does it mean when the check engine light is on in an 03 c240 Mercedes Benz?
The check engine light comes on and stays on when a problem is detected by the self diagnosis system of your vehicle. Generally, a check engine light is lit when there is a problem in the emissions
Why would the engine light blink?
A blinking Check Engine light indicates a serious problem with the emissions system. Have this repaired immediately.
Will the check engine light come on if the catalytic converter is removed?
If built 1996 or later, yes.
If built 1996 or later, yes.
Would the check engine light come on if the oxygen two sensor needed replacement?
The O2 sensor is one of many things that can turn on the check engine light. You need to have it checked for codes.
What would cause the emissions light to be on in a Kia Sedona?
I have a 2003 Kia Sedona. The light was on, but my code reader would not read the code. So, I brought the car to the dealer who found the gas cap was loose (actually the retaining strap had caught under the cap). I would like to know why my code reader that I bought from Harbor Freight could not read the code (it said error). The reader works fine on America cars and Hyundai's. You bought A CODE READER!!!!! Not a scantool/it's like night and day. If it is a Vehicle manufacturer specific code it will not show on a aftermarket code reader unless you buy the good stuff!
Where is the reset button for the check engine light on a 1996 BMW 328i?
If the problem was fixed, the check engine light should turn off after a certain amount of times of turning on and off the car.
On a 2000 Mercury Mystique V 6 the check engine light flashes?
If your check engine light is flashing that means an engine cylinder (s) misfire has
been detected what is a engine cylinder misfire and how much bdoes it cost to fix it
How do you reset service engine light on a 2001 f 150 ford pick up truck?
that is against the law but you can detatch your battery or go to a local autozone and they can reset it for you.
well you can go and have the car hooked to a computer it cost about sixty bucks and it will tell you all the stuff that is wrong (EDIT - Cost is FREE at Pep BOYS)
New AnswerYes-on these later model explorers, the chk. eng. lamp illuminates to advise you of an ERGONOMICS problem. That should narrow it down to half a million possibilities.Can your check engine light turn on if your oil low?
Low oil will trigger a different warning light, specifically the low oil light will come on.
Where is the oxygen sensor located on a 2004 Pontiac Sunfire?
In a 2004 Pontiac Sunfire, there are two oxygen sensors. One would be located in the exhaust before the catalytic converter. The other is located in the exhaust after the catalytic converter.
No oil in car oil light did not come on engine light did though?
If it was run without oil, the engine is most likely toast.
Does a snap-on scanner tell you what the trouble codes are?
It's a NexIQ scanner with Snap-On case.. yes, it'll read and display DTCs.
What does lest too light winning make the prize light mean?
If something is obtained too easily, then its worth could be underestimated. It's from Shakespeare's 'The Tempest'.
How do you reset the check light on a Maxima?
Unplug the negative battery cable for 24 hours. I tried 10 minutes and it didn't work but it may for you.
What does the check engine light mean for ml 430?
most the time it means you didnt tighten your gas cap properly. if its not that its probably a sensor that has gone bad.
How do you reset service light on ML350 with a 164 chassis number?
Need to do service confirmed:
1- Door closed key position 1 (make sure you have the temp. screen up before starting) immediatly after turning to posistion one, press the reset button 3 times. and the battery voltage should come up.
2- page down to serivce data menu. Use plus and minus to select service data and hit page down to select.
3- Use plus and minus to scroll down to "confirm overall service" , then hit page down. It should say service confirmed.
4- Take the key out ant put back at position 2, the service message should be gone
I had the same issues with trying to reset the service codes for my M/B ML350. After looking everywhere and getting no help from the Mercedes dealerships, it turns out, the directions for resetting my service codes were right in my owners manual! I tried it and it worked the first time........I just can't figure out why Mercedes wouldn't tell their owners such a simple solution to a very irritating problem!
Your check engine light is on and your speedometer is out of control?
You need to start by having your car checked for codes. You can then fix the cause. It will probably have to do with a speed sensor.
Check engine light on Nissan Maxima?
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.
2004 Jeep Cherokee Overland 4x4, HP 4.7 engine. auto trans. 40,000 miles Had the transmission flushed and oil R&R. The engine light came on shortly after and has stayed on. WHY?? I took it back to the service tech, he made the light go off for a short while but it is now on all the time. Checked fuel cap. and it's ok and tight.
