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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
How can to fix O2 sensors to pass emissions the fuse for O2 keeps blowing out?
The fuse is blowing out because the wire for the O2 sensor is shorting to ground. Replace the entire wire (trace it through the wiring harness) and the connector for the sensor.
What can be a problem when service engine light is on on a 2003 chevy trailblazer?
When service engine light is on on a 2003 Chevy Trailblazer, the problem could be a faulty thermostat, a circuit range performance problem, or any other problem.
How to turn off the check engine light on a 2002 Lincoln Continental?
Disconnect the negative battery cable and then hold the brake down for about a minute. Be careful when doing this, be sure you have the code to unlock the radio. I personally have not had problems with the radio when clearing codes. If the light doesn't reset try it for a longer period of time or take it to Autozone to see if they will clear it with their scantool.
2000 Mazda protege check engine light always on?
Have you checked the codes it is throwing? If your engine light is on, most likely there is a reason. Take the car to a local autozone. They can pull the codes for free and tell you what they mean. http://www.autozone.com/servlet/UiBroker?UseCase=S001&UserAction=viewSimpleDiagInfo&Parameters=info
How do you reset the check engine light on a 1994 Ford Probe?
For the 1994, you have to remove the negative battery cable, then depress the brake and hold it in for 5 seconds to reset the check engine light.
Where do you find check engine switch on a 1992 Geo Tracker?
Hi, The switch should be down on the left side of the console or to the right of the steering column. The other method of clearing all the codes is to disconnect the neg terminal of the battery for at least twenty (20 ) seconds, yes that means you need to reset your radio and clock but it is an easy way if you still can't locate the switch. You shoud have no trouble locating it unless someone dissabled it and threw it away or somethinmg like that though. Good luck and hope this helps. Steve H.
actaully the SES nag and CEL share the same lamp and are independent functions.
the Federal cars ( see hood sticker.)
have the SES nag light and goes on , with 50k,80k and so on.
the slide switch for the nag is hidden well.
http://www.kick-fix.com/CEL/CEL.HTML
Where is the evaporative emission control system vent solenoid located on a 2007 Chevy silverado?
It is mounted to the frame of the truck just in front of the fuel tank.
2001 ram 3500 engine maintenance light code p0601?
P0601 is Internal Controller Failure- Common repair is Install new PCM and program it
How do you clear the check engine light on a 1989 Dodge Caravan?
ONE thing that will do this is disconnect the battery , then reconnect the battery but if the check engine light comes back on then take the veh to the garage for more diagnosing of the systems
Don't bother replacing it. I have a 2000 Xterra V6 with 162,000 miles. The knock sensor has been bad for at least half those miles. Other than a code P0325 always stored in the ECM, it doesn't seem to impact performance or mileage. The P0325 error code doesn't even turn on the "check engine" light. Also, replacing the sensor is big job since so much has to be removed just to get to it (for the V6, it's attached to the engine block under the plenum and lower intake manifold). For those with the later years supercharged Xterra's, I would definitely change it if it were bad but not for the 2000 models.
I agree my supercharged 01 frontier is getting no better than 11mpg with the sensor out they charge a very steep price to get it fixed between 400$ and 500. I just changed a knock sensor on the 2000 xterra 3.3 v6 with 257000 miles on it. I put it all back together and it still read that the sensor was bad. The next morning after the car had sat I drove it and really got on it and now it runs like a charm. This was the problem i did not drain the radiator when i removed the lower intake manifold water got into the valve tubes. I dryed them out but some must of got in there,. so be carful when changing the knock sensor "drain the radiator or it will suck."
Why does the check gage light come on in your 1994 Chevy Silverdo truck?
you likely mean "check engine" which could be a multitude of reasons,you need to plug it into a reader to desipher the code Many parts stores will read the codes for you for free and depending on the fault you can get the parts there to do the job.
How do you reset the check engine light on a 2003 Kia Sorento?
Easiest way to reset the Check Engine Light, is to go to a car parts store(easiest), or even the dealership(wait in line, might charge you, etc.), Use the OBD2 reader, make sure your vehicle is turned off completely, hook up the OBD2 reader, turn your key to ignition, but DO NOT start it. The OBD2 reader has a power on button, turn it on, let the diagnosis complete itself, and there is an option of "resetting" the Check Engine Light, or "Erase". Hope this was helpfull -Danny(15 yr mechanic)
How do you reset the check engine light on a 1988 4.3 Chevy s10?
Disconnect the battery for 20 minutes. This should reset the light. Of course if you do not repair the problem that caused the light to come on in the first place, it will just come back on.
i'll go to AutoZone to get free pcm code and then post that code in this forum. i'd some what similar problem.it was EGR valve,pretty sure....anyway get pcm code when CEL come on and let us know.
What could cause the engine light to come on in a Vauxhall Cavilier?
Hi,if you trawl through the other posts you will find many questions similar to yours.The engine icon is for "engine electronics",it means there is a fault or fault with a sensor,that is monitoring your systems.I maintain that the cheapest cure is to run the vehicle to a garage,not necessarily vauxhall,as long as they have the diagnostic kit.Phone up and ask.I use a local private garage. Most times it is a sensor problem rather than a component.For instance,my daughter's corsa started throwing in large amounts of petrol,making black smoke and choking to a stop at junctions.I guessed it was the coolant sensor but still had it confirmed on the computer.The sensor was telling the ECU that the engine was cold so it put in the extra fuel.
When you turn your sterring wheel your engine shuts off?
when the sterring wheel is turned sharply to park, the engine shuts off
Sierra 2500 hd 2008 and the reduced power engine light is on any ideas?
I assume it has a diesel. Possibly the regeneration of the exhaust isn't working. It is going into the "limp home mode". Some name huh.
What would make the check engin light come on in an 1993 Mazda?
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.
What is Chrysler check engine code P0135?
This is a generic O2 Sensor code, usually used on right bank
Why would the check engine light in a 1997 F-150 go on and off?
if check engine light is flashing engine is misfiring It could be only a little hole on the gasoline pipe. cause the system must be pressurise and if is not the "check engine" will flash. the light only stays on if there is a drivibility problem it will flash if there is a slight problem and the computer in the truck will fix itself or at least try to goto a place to get the OBD II test ran on it and it should tell you whats wrong
