Why is my engine light on but nothing seems wrong?

Normally, the appearance of a check engine light indicates a problem somewhere in your vehicle, but nothing seems amiss.

If you think this is the cause of your check engine light, simply twist the gas cap until you hear a clicking sound.

It doesn't have to take a mechanical issue in order for this light to appear.

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Why would the engine light stay on on a 1994 grand marquis when nothing seems to be wrong?

The computer has detected a problem and there is a code available for you to read. That is the purpose of the light.

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Why is my check engine light on but no codes?

One main reason that a check engine light comes on with no code being stored is that there is a software error.This is often the result of something being wrong with the OBD reader that the driver, parts store, or mechanic shop is using.Most frequently, the software errors stem from a low-level O...

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Why does the check engine light stay on on a 1999 subaerban when nothing is wrong with it?

the check engine light means you have something wrong with your emissions. it might be the two sensers on the exhaust pipe.

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Why on a 1996 Chevy Corsica would check engine light come on but car seems to run fine?

Because the computer has detected something that needs to be resolved. Use a code scanner to find out what problem code the computer has store.

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Why is my engine malfunction light on?

The light could be a minor issue, such as a faulty gas cap, or it could mean something more serious, such as a misfiring engine.The check engine light — more formally known as the malfunction indicator lamp — is a signal from the car's engine computer that something is wrong.

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Why is my check engine light on?

Your Check Engine Light may be indicating a simple problem that's easy to fix—such as a loose gas cap that needs to be replaced.A flashing Check Engine Light indicates that your vehicle's engine is in serious trouble, whereas a steadily lit one means less urgent service is needed.

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Why is my mini engine light on?

Mini coolant warning light This light will come on when coolant levels are running low and the engine is overheating.This could be due to a leak in the system or it could be a sign of a larger problem, like a head gasket failure.

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Why would the check engine light stay on on a 1999 suberban when it's been hooked up to a computer and shows nothing wrong?

There could always be a fault in the computer itself.

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What is wrong when I turn my ignition on it turns but the engine won't start?

that's hard to say it could be as easy as battery or something like your starter theres a couple things it hard to tell with out being there

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Why is my car shaking and engine light on?

Check engine light flashing car shaking is a clear sign of trouble.Vibration or shaking may be caused by misfires, poor fuel pressure, or faulty spark plugs.You should also know that a defective idle air control valve might make the engine idle drop significantly.

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Why is my traction control and check engine light on?

The Traction Control Light indicates your car's traction control system is active.Traction control is necessary to maintain grip in slick conditions.Common signs include the Check Engine Light coming on, car braking inconsistently, and the traction control switch not depressing.

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Why is my check engine light on Volkswagen?

VW Check Engine Light Flashing When your Volkswagen check engine light is flashing, means the onboard diagnostic system has detected a misfire.This is due to fuel not getting burned in the cylinder.This problem is typically caused by a bad spark plug or ignition coil.

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Why is my car shaking and check engine light on?

Check engine light flashing car shaking is a clear sign of trouble.Vibration or shaking may be caused by misfires, poor fuel pressure, or faulty spark plugs.You should also know that a defective idle air control valve might make the engine idle drop significantly.

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Why is my engine light on and car jerking?

When your car is jerking around, this means that the engine is having a misfire and causing the engine to stumble making the vehicle seem to jerk around.Check the camshaft position sensor for any damage and if the harness is secure to it.Check the spark plugs and wires to see if they have any bur...

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Why is my check engine light on and car shaking?

Check engine light flashing car shaking is a clear sign of trouble.Vibration or shaking may be caused by misfires, poor fuel pressure, or faulty spark plugs.You should also know that a defective idle air control valve might make the engine idle drop significantly.

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Why is my check engine and battery light on?

The battery light will come on if the charging system and battery voltage drops below a minimum set by the factory.The check engine light is letting you know that there is a problem that a code has been set in memory that can be diagnosed.Check the charging system and repair or replace the altern...

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Why is my service engine soon light on?

The intended purpose of the "service engine soon" light is to warn the operator of the vehicle that a malfunction has been detected by sensors in the emissions system of the vehicle.There may be a major problem with the engine or one of its components, but it's usually a minor issue.

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Why is my Mini Cooper check engine light on?

When you see the check engine light illuminated in your dash, it means your Mini Cooper has detected a problem within its OBD system.If the Mini engine light is flashing yellow or red, it is in your best interest to take it to an Independent Service Center for diagnosis right away.

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Does check engine light mean nothing?

If the check engine light comes on, here are some tips on what you should do: Look for a serious problem that requires immediate attention.On some cars, a yellow check engine light means investigate the problem and a red one means stop right now.Try tightening your gas cap.

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What is wrong with your car if nothing works including the lights and start?

Dead battery? Loose or corroded battery cable? Blown fusable link?

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Whats wrong when my 2002 ford focus wagon se engine light is on car sputeringwhen i push on the gas?

have vehicle scanned to determine the problem

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Why do the 406hdi executive ABS warning light comes on after about 10 miles but brakes seem ok?

Could be a tire low on air or a different size tire than the rest.

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The car won't start I turn the key nothing but the dash light come on?

this could one of two things u have a cracked engine or your starter went out

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Why does the abs light stay on and my brakes seem to drag on a 1998 Caravan?

most likely you need new brake pads

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Why does my engine light keep coming on?

The mass airflow sensor, or MAF sensor, calculates the amount of air that's coming into the engine so that the computer can add the right amount of fuel.A faulty MAF sensor could trigger the check engine light.It can also cause a car to experience impaired gas mileage, increased emissions or freq...

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My engine light came on after replace valve cover gasket in my 1992 Honda accord but oil is not leaking?

Check your crankcase ventilation, the hose or pcv may be blocked or disconnected.

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Why is my check engine light on after my battery died?

A dying car battery means low voltage.That means your car's computer, which is responsible for reporting error codes, is also receiving low voltage.As a result, an error code will be generated which will in turn trigger the Check Engine Light or even the Battery Charge Warning Light.

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Why is my engine smoking but not overheating?

The Oil Filler Cap White smoke coming from hood of car not overheating is a common issue in older engines.Older engines produce more hot spots, which make the car smoking under hood but not overheating.Worn out piston rings and clogged PCV tube or valve are the culprits that cause this smoking i...

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Why is my engine hot but not overheating?

Thermostat: Another possible issue could be a problem with the thermostat.A vehicle's thermostat is responsible for regulating the amount of coolant flowing through the engine.A broken or malfunctioning one can easily cause your car to overheat.If your vehicle has low oil, it might be causing you...

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Why would a car start and run then out of no where stop running and wont start but after awhile start like nothing is wrong?

Could be that the coil (or coil packs) is breaking down and fails when it gets hot and then works again when it has cooled slightly after a few minutes. A good garage would check this easily and quickly especially a main dealer for the car.

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Why does my running lights work but my head lights don't for a cadillac deville?

Bulbs, switch or wiring

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Why do my brake lights work but my tail lights dont?

Check the Wiring The wiring from the fuse panel to the brake light switch and from the switch to the bulb sockets and lights could be loose or frayed.The connection and the bulb housing could be corroded.You have to change these parts if found any such problem.

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Why wont your car start even though there is nothing wrong with it?

Obviously if it will not start, there IS something wrong with it.

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Why do my brake lights work but my tail lights don t?

Check the Wiring The wiring from the fuse panel to the brake light switch and from the switch to the bulb sockets and lights could be loose or frayed.The connection and the bulb housing could be corroded.You have to change these parts if found any such problem.

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Why do my tail lights work but not my brake lights?

Check the Wiring The wiring from the fuse panel to the brake light switch and from the switch to the bulb sockets and lights could be loose or frayed.The connection and the bulb housing could be corroded.You have to change these parts if found any such problem.

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Why do my tail lights not work but my brake lights do?

Blown out light bulbs are the most common reason for why the brake lights not working but the tail lights are.Remove the screws from the bulb lens (which you can access through the trunk or see your vehicle repair manual to get the exact location).

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Why does my tail light work but not my brake light?

Malfunctioning Light Bulbs A blown or fused bulb is the most basic reason behind a faulty brake light.If the bulb used in the brake light has gone faulty it will not work when you depress the brakes.This way your taillight will work but when you brake, your brake lights won't work.

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Driver side Headlight went off on your Equinox but it lights up when full lights on whats wrong?

headlights are either sealed beams or bulbs both have 2 elements. one for bright and one for low the low is burned out replace the bulb or sealed beam

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Why would car lights work but the engine wont start?

Assuming the starter does not crank over the engine. Bad starter, starter solenoid or relay.Bad battery.Loose/dirty connections between battery and starter.Bad or out of adjustment neutral safety switch.

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Why is my cruise control light on?

Most cruise control lights use 2 different colors to let you know what state the system is in.Some common faults that cause this light to stay illuminated include a blown fuse, faulty brake switch, or malfunctioning speed sensor.

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Why is my air suspension light on?

The most common reason for the Check Air Suspension light is a faulty or non-functioning air compressor.When the air compressor doesn't work, the air springs don't fill and the light comes on.

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Why is my service 4wd light on?

If it stays on, or the "Service 4WD System" message is displayed, there is a problem with the 4WD system.The "Service 4WD System" message does not mean it is time for routine maintenance of the 4WD system; rather, it indicates a problem with the 4WD system that should be properly diagnosed and re...

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Why is my windshield wiper light on?

The “Windshield Washer Fluid Level” Warning Light indicates that the level of windshield washer fluid is low and should be added to the windshield washer fluid tank as soon as possible.Windshield washer fluid is a mixture that contains both soap and antifreeze.Antifreeze is an important part of t...

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Why is my red brake light on?

The second most common reason for causing a brake light on your dash is if your brake fluid is low.There is a sensor that is inside the brake master cylinder that can tell when the fluid gets low.This sensor will illuminate the brake warning light to let the driver know that the brake system need...

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Why is my airbag sensor light on?

It might mean nothing much, or it could mean that in the event of an accident, your airbags will not deploy.Your airbag or SRS light might also come on if your vehicle was in an accident that activated the crash sensors in your car, but not to the point where the airbag deployed.

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Why is my maintenance required light on?

However, a Maintenance Required light is a light that comes on after a set amount of miles.It's there to remind you every so often to check and change things like your oil and such.It can usually be reset, which will turn it off until the car has recorded that set amount of miles again.

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Why is my transmission light on?

A problem with a transmission temperature sender may be the culprit if the light comes on or flashes only before the vehicle has warmed up to operating temperature.A light that flickers or comes on only when hitting bumps on the roadway may indicate a loose transmission wiring connection or a bar...

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Why is my check engine light flashing and car shaking?

Vibration or shaking may be caused by misfires, poor fuel pressure, or faulty spark plugs.A misfire always develops a disproportion in the motor, causing vibration or shaking.Another issue that may cause check engine light blinking car shaking is a broken engine mount.

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Why is my anti lock light on?

Your car is equipped with both a normal braking system, as well as anti-lock brakes.The anti-lock Brake System (ABS) Light should come on in the dash when you start the car, but it should go out within a few seconds.If the light stays on, or comes on when you're driving, it means that there is a ...

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If Your 1986 190E wont start engine turns on but it seems like there is no fuel getting to it you hope a fuel line or the filter is clogged have checked the coil OVPR still nothing what's next?

If you had to use jumper cables recently you mat have blown the 10amp fuse on the Overload Protection Relay. It should be located behind the battery with a red cover for the fuse. It regulates the fuel at start up by controling the rpm's. It would take me for ever to start my Mercedes 190e but on...

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Why is my coolant light on?

Your Coolant Pressure Light comes on when your engine is overheating due to insufficient coolant.If you remove the radiator cap or open the coolant reservoir before the engine has had a chance to cool sufficiently, the buildup of steam inside the cooling system could give you a very nasty burn.

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Why is my brake warning light on?

If the brake warning light comes on when you apply the brakes, or is on continuously, it means that hydraulic pressure has been lost in one side of the brake system or that the fluid level in the master cylinder is dangerously low (due to a leak somewhere in the brake system).

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Why is my ABS light and traction control light on?

Main reasons that cause the light to come on If the ABS is kicking in, the light will also illuminate.Another of the fluid-related problems that can trigger the light is low brake fluid.Because traction control monitors braking so closely, anything that seems off with the braking system may trig...

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Why is my car shaking and engine light flashing?

Check engine light flashing car shaking is a clear sign of trouble.Vibration or shaking may be caused by misfires, poor fuel pressure, or faulty spark plugs.A misfire always develops a disproportion in the motor, causing vibration or shaking.

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Why does the check engine light come on but the car still runs?

This condition is a "limp in" mode programed into your cars computer so that it still can be driven even thou a problem has been detected. In this mode the engine runs on preset program that does not require feedback from sensors on the engine to run. This "OPEN LOOP" mode does not update the com...

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Why is my gas gauge reading wrong?

In a fuel tank, as the fuel level rises, the fuel sending unit float rises, and a variable resistor changes the resistance in the electrical current running to the gauge so it reads full.When the gauge is stuck at full, or always on zero, or some erratic and random reading, there's a fuel instrum...

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The lights and radio come on but the car won't start. What's wrong?

-- battery-- battery cable-- connection between battery cable and batteryA fault in any of these would still supply the small current used by thelights and radio, but not the huge battery current required for starting.

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Why is my brake light on after changing my brakes?

Low brake fluid/Worn brake pads Roberson says in most cases, a brake warning light indicates low brake fluid, which is often a result of worn brake pads.“As the pad wears, the brake caliper piston extends further to keep the pad in contact with the rotor,” he says.No fluid, no brakes.

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What could be wrong if the engine management light is always on after changing motors?

I would be sure to check all the sensors , one is unpluged or broken off.I have also seen this happen when an engine form a different model year is installed.More info on the car would be helpfulTrue, if the motor is from a different year the computer may need to be reprogrammed to accept the var...

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Why is my security light staying on in my car?

On your particular vehicle the security light staying on as the vehicle is running is an indication that the security system has failed and is disabled.It is common for a security light to come on after battery dies because the computer may lose its programming to the key.

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Why is my car getting hot were my shifts are od light is on but my od is off what does that mean?

od light is the overdrive unit on the transmission. If you drive on the freeway you should have the overdrive unit on, on the streets the unit should be off. The light usually doesn't have anything to do with overheating. I would look for some other issue.

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The dash lights come on but the engine won't start?

If the dash lights come on, but the engine won't start, check the starter. There could also be a problem with the fuel line or the spark plugs. If the engine turns over, but won't start, check all of the fuel sensors. If the motor has a clicking or buzzing sound, check the alternator.

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My ignition lights come on but car wont turn over?

Starter, battery, battery connections, neutral switch,

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Why did my check engine light and cruise control light come on after having my oil changed?

You might need to change your O2 sensor.If the check engine light came on there will be a code set in the ecm. Have your local auto parts store read the codes for you. The codes will help you find what is wrong. Something may have gotten disconnected when the oil change was done.

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My mini cooper engine symbol light is staying on?

If it's red you'd better not be driving it. If it's amber have your mechanic check it out ASAP.

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Why does my check engine light comes on and off on 1991 Honda Accord?

You check engine light is signaling to you that there is something wrong with you car. You should have your car looked at by a professional.

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Why wouldn't a 2001 eclipse start the lights and everything come on but when you push the clutch to start it nothing happens?

I had the same problem with my 2000 eclipse gt. You are probably still running the factory battery and after time, the battery losses its cold crank amps. It still holds a good charge, hence the reason all of your electronics work well, but the battery does not have enough amps to turn the engine...

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Will the wrong oil damage my engine?

Incorrect viscosity can also cause metal-on-metal friction, leading to the breakdown of engine components.Using the wrong motor oil can lead to serious damage that will require costly repairs.

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Why my tundra 07 turn on the engine light and 4 lo light and wont go on second shift?

If the check engine light is on, you have codes. Have the code(s) read by your local auto parts store. The codes will help you determine what's wrong.

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What is wrong with number plate lights on BMW 318 ive changed the bulbs but still not working?

Check your fuses. |If they're good, than there is probably a break in the wiring or corrosion in the socket or wiring connectors. If you have a circuit tester or volt-ohmmeter, turns the headlights on. Use the probes to check whehter there is voltage in the socket (between the side of the socket ...

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Will wrong oil damage my engine?

Incorrect viscosity can also cause metal-on-metal friction, leading to the breakdown of engine components.Using the wrong motor oil can lead to serious damage that will require costly repairs.

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Why does your engine idle high in Park and Neutral but seems to be O.K. in Drive?

This is almost always caused by the Idle Control Valve (IAC), which is located near the firewall, on the passenger side, next to the throttle body. They sell for about $50. On generation 1 cars (1993 to 1996) these are very difficult to remove and install, but it can be done-or you could try to '...

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Your car suddenly died while you were driving down the road but no lights came on what is wrong?

your alternator is dead.

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Why when I turn my key nothing happens?

If nothing happens when you turn the ignition key to the "Start" position, it means that the starter motor doesn't turn over the engine.Most commonly this could be caused by a dead battery; here is How to check the battery.The starter motor itself or a starter solenoid could be bad.

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2004 L200 Wrrior air con not cold but seems to work correctly light works on switch engine speed changes air con seems to engage even water drips out after a while been regassed too.?

Sure would be wonderful if you would write in complete sentences in English. What does "been regassed too.?" mean ( period, question mark)From what little I understand, your AC works, but not well, the AC clutch is engaging and the AC is removing moisture from the cabin air. You want to know why ...

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Why wont my 1984 Chevy S-10 automatic that will start up but not go into gear what is wrong?

The shift cable runs under the drivers side carpet. After many years of moisture and corrosion the cable seizes up and you can't move the shift into gear or it moves with great difficulty.

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Why when I am driving my car stopped at a street light the car turns off but it is still on Basically the needle was pointing at off but the engine was still on?

Many modern cards actually stop the engine if the car is stationary and restart it as you move to pull away. This saves fuel and reduces pollution.

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My 1996Yamaha xt250 starts but it wont click into gear there's just nothing there?

Maybe you should burn your car?

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What is wrong if your engine will turn on but your car will not stay in gear?

ur gear box or clutch has gone take it to ur local garage!!?

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Why is your check engine light on all the time?

There are pages and pages of things that can cause a check engine light. You need to have it checked with a scantool. Then the code can be diagnosed and repaired.

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Why is my Abs light on in a f150?

There are numerous reasons why the ABS light will come on in the Ford F150. The brakes could be bad or the wheel assemblies in the front or rear could also be bad.

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Why is the engine light coming on in your car?

It's not coming on in my car. I keep my car in good repair.---Update---It regularly means maintainence required.

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Why is the airbag and check engine light on?

There are a number of reasons why your airbag light has come on or is flashing. We will cover a few explanations that may help you identify where the problem may have originated from. First and foremost if the airbag light is on or flashing, the SRS system is inactive. Therefore, if you get into ...

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2001 Pontiac Sunfire why is the check engine light on?

The Check Engine light is on because the computer has detected a problem with the emissions system. It may be nothing more than a loose gas cap or something more serious. You will need to get the computer scanned with an OBD2 scan tool. Some Auto Parts store will do this for free in some states. ...

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Why is check engine light on 2005 Hyundai elantra?

take it to autozone and they'll tell you fro free

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Why does my engine management light keep coming on and off?

If the fuel tank pressure sensor is unable to provide an accurate reading, it'll usually trigger an engine warning light.One common cause of an air leak into – or out of – the petrol tank, is through a fuel filler cap that doesn't properly seal.

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What could be wrong if check engine light comes on a XC90?

The check engine light comes on when the ECU detects a problem with the emission system. To determine what the problem is you need to have the ECU scanned with an OBD2 scan tool. The code you retrieve will tell you where to start looking for the problem.

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Why is your check engine light on your 2004 Avalon?

It is on because u did not put the cap back on tight enough.

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Why does my check engine light blink when I accelerate?

A blinking light usually indicates a severe engine misfire allowing unburned fuel to be dumped into the exhaust system.There it can quickly raise the temperature of the catalytic converter to a point where damage is likely, requiring an expensive repair.

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Why is my abs and parking brake light on?

Most commonly, this light is triggered by low brake fluid or an engaged parking brake.However on some vehicles, it can simply indicate a problem elsewhere in the system and can be illuminated immediately if there is an ABS fault.

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Why is my oil pressure light on after oil change?

The next common cause is low oil pressure.If the oil pressure is below 5 pounds per square inch, your oil light will illuminate.The oil pump may not be circulating enough oil to keep the engine's parts lubricated and functioning properly, which can in turn cause multiple engine issues.

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Why is my oil light on when its full?

If your oil light comes on while you're driving, it means there has been a drop in the oil pressure in your engine.Your engine requires a steady supply of oil to keep all of its moving parts lubricated, so it's important not to let the vehicle run for long with insufficient oil pressure.

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Why is my ABS light on after changing wheel bearing?

But once you start driving, you get another ABS light on after wheel bearing replaced.Or, it determines that the weak signal indicates a bad sensor, so it lights up the ABS light.You can try removing the sensor from the old wheel bearing hub and cleaning off the rust.

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Why does my Corsa roll back with engine running in drive on hills at traffic lights?

Because if it is front she'll drive the gravity pull brings the car backwards also if the car doesn't have a lot of horse power the wheels will tend to roll back but in most all wheel drive cars that doesn't happen

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Why does the engine light stay on in my Ford Transit van diesel 1999 model?

Sounds like the Check Engine Light (CEL), also known as the Malfunction Indicator Lamp (MIL). These engines have a number of sensors in them. When a sensor returns data the computer determines to be invalid or incorrect, it determines that there is a fault with how the engine is operating, assign...

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Why does my ABS trac off and service engine light stay on?

Could be a bad ABS sensor. Needs service/replacement.

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Why did my check engine light come on after an oil change?

These lights can signal something serious or something as simple as a loose gas cap.Regardless, diagnosing the problem is key.One thing that won't trigger a check engine light: a recent oil change that was done correctly.If you notice the light after an oil change, something else is wrong.

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Why is dash brake light on in my Acura CL?

Check the level of brake fluid in master cylinder - if low could be indicator that brake pads are worn and need replacement or leak in system and needs attention. Check to make sure that parking brake is fully released

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Why is my oil light on when it's full?

Since the light comes on at low engine speeds and then shuts off, the oil pump is probably fine; if the pump were dying, you'd see low pressure at high engine speeds as well.The most likely culprit is the sensor that operates the light.If it does, you might be due for a new oil pump after all.

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Why is my ABS and traction control light on?

When your ABS light comes on, it is referring to the antilock braking system in the vehicle.Traction control doesn't always refer to ABS, however.This can also be a control platform for driving, wheel-speed sensors, and sometimes wires and sensors relating to traction.Things like this can cause t...

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