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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
What is Chrysler check engine code P0134?
That is a code for 'Front O2 sensor open or short.' This could be as simple as a loose or bad wiring connection at the front O2 wire harness, a problem with one of the fuel injectors, an intake air leak or even low fuel pressure. If you are having higher than normal fuel consumption and smoke at exhaust, possibly the O2 sensor is dead. The front heated oxygen sensor (or O2 sensor 1) is placed into the exhaust manifold. It detects the amount of oxygen in the exhaust gas compared to the outside air. If you're confident with working on your engine, change this sensor, if not -best take it to a reliable place and have an engine analysis.
How long after the thermostat is replaced will the check engine light turn off?
IF that was the problem it will turn off within 3 starts of the engine.
It always helps to state car type, make and year with these problems
What does it mean when a check the engine light turns on a 2004 Chevy aveo?
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 or something that is affecting the effectiveness of the emissions.
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 or something that is affecting the effectiveness of the emissions.
What does the orange warning light in the shape of a engine mean?
Check engine light. it could be as simple as a faulty O2 sensor or as complicated as something more serious. have it put on a tester, sometimes shops provide this service for free.
What does the check engine fuel filter light look like?
The tank cover has to be psuhed manually from outside.So much "intelligence" for German design !!
Could a dirty air filter be the reason your check engine light is on in your 2007 Chevy aveo?
possible, but not likely.
see related question below.
possible, but not likely.
see related question below.
How do you correct the code P1682 on a 2009 cobalt and what does it mean?
Powertrain Control Module Fault. It can also be a problem with the cooling system. I recommend you seek professional help at a GM dealership as there are TSBs on this code on your Cobalt.
Removing the catalytic converter is illegal. It will also not improve fuel mileage. The engine will not run properly with the converter removed and the check engine light will not go off and cannot be turned off as it will just come back on. The ECU will try to adjust the fuel/air mixture to compensate for the missing converter which will hurt economy not help it. The fine is $2,500 if you are caught. Install a converter back on your car ASAP.
Defective alternator, short in battery, or loose or corroded connections.
Can a blown intake gasket cause the check engine light to come on?
Yes, it sure can. Have the ECU scanned to retrieve the code which will tell you, not necessarily the defective part but what part is being effected.
What does the Chevy Trailblazer dashboard light mean under carriage and wrench?
Problem with the 4 wheel drive
Is the engine check light supposed to turn on after changing radiator?
No, the check engine light comes on when the computer detects a malfunction and sets a code.
No, the check engine light comes on when the computer detects a malfunction and sets a code.
Why your truck 2000 5.9 cummins has the engine protection light on?
The check engine light comes on when the computer detects a malfunction and sets a code.
The check engine light comes on when the computer detects a malfunction and sets a code.
Would a hole in radiator cause the emishion light to come on?
No. If your vehicle can pass an emissions test, chances are that it's just a bad sensor.
What does you mean when check engine light goes on and then goes off?
When I start the vehicle it will come on and stay on. Sometimes when I fillup with fuel it will go out and stay out for a day or two and come back on particularly when the fuel level reaches 3/4 tank or below. It will be on when I run the car for an hour or two and when I shut it down for a few minutes and restart it will be out until I stop and when I restart it will be on again.
Answer: You will need to have a scanner hooked up and the codes read to determine exactly what is going on. It sounds like there may be a problem with the vapor recovery system on the fuel tank, but this is just a guess. A scanner will determine exactly what is going on.
How do you replace the check engine light bulb on a 1996 ford e150 van?
Remove the instrument cluster.
Is there an easy way to change the check engine light bulb for a 2002 KIA Sportage?
No sorry. you gotta pull the whole instrument panel out to get to it.
Is there a separate fuse for the check engine light on a 2000 Ford Explorer?
According to the 2000 Ford Explorer Owner Guide :
No , a separate fuse for the check engine light is not listed
What are the signs of a bad catalytic converter on a 2005 Tahoe?
A couple of things could be wrong. number one you could have a check engine light on saying low deficiency out of parameter's. this means that the catalytic converter does not meet the right heat range. If it is to high this could mean that your catalytic converter is plugged. you Will have no power, very sluggish. If it is low you could have no back pressure, the inside of the catalytic converter is empty, this is to cold. it will cause the check engine light to illuminate. This an open loop condition. your computer goes to base settings and you will get very bad fuel economy. To high and to low will cause the check engine light to come on. you will need to replace the catalytic converter.
What may cause engine light on 2003 Toyota matrix to come on?
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 a parts store 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.
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 a parts store 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.
Why does your check engine soon light comes on in your 2003 grand prix?
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 a parts store 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.
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 a parts store 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.
