What are some reasons an engine light would come on?

Cars & Vehicles
Check Engine Light
Chevy Blazer
Toyota RAV4

my check engine light came on and would go off, come back on again. when i had it checked, it was my gas cap, it was leaking.

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What are the reasons the check engine light would come on in a 2002 Toyota Tacoma?

go to most modern parts stores and they will have the tool that they can read the codes in your car and tell you why it's on. it's typically free too. just call ahead to see if they do it.

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Can engine light come on for no reason?

It might just be your gas cap Many people don't know this, but a loose, cracked, or faulty gas cap can cause fuel to evaporate, thus cuing your check engine light.If this was indeed the trigger, your check engine light should go off within 10 or 20 miles once you're back on the road.

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What are the reasons a check transmission light would come o in a 1999 Isuzu trooper?

Low or burnt out transmission fluid, clogged transmission filter, detection of metal particlesfloating around, excess trans temperature, incorrect response from electronic components or sensors, vacuum issues (auto only).... I'd suggest you go to an auto parts store and have them hook up the OBDI...

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What would make an abs light come on?

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What causes an engine light to come on?

The check engine light warns of issues ranging from a gas cap that's not properly tightened to a more serious failure like a bad catalytic converter or a problem with one of the car's oxygen sensors.Here are the 10 most common problems that can trigger a check engine light.

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What are the reasons for the service engine soon warning light coming on in a 2001 Pontiac Grand Prix?

Usually indicative or a problem with the emission control system - have vehicle scanned to determine the problem

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Why would a reduced engine power light come on?

Common reasons for this to happen: Faulty Throttle Body: A throttle body is part of the of the air intake system which helps control the amount of air going into the engine.This can trigger the Reduced Power light as well as lead to a poor running engine.It can also trigger the Check Engine light.

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What causes an engine light to come on and then keep on flashing?

that usually means something is seriously wrong....i would take it to the shop

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What makes engine light come 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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What would cause the check engine light to come on in a 2002 Nissan sentre?

There are countless reasons why this could happen. You need the services of a professional mechanic in order to properly diagnose the reason.

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What could be the reason why the check engine light comes on I have a 2002 Honda Accord?

It has come on because the computer has detected something is wrong with the emissions system on the vehicle. A scan of the computer with an OBD2 scan tool, will provide a fault code. This code will help a knowledgeable professional to determine what component is being effected. This will help na...

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What makes check engine light come on?

For Cheverolet Aveo - the ignition coil is faulty and should be replaced togetherwith new spark plug cable. To start and run smoothly, recommends to change all spark plug to make it more healthy engine.

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What would cause the check engine light to not come on?

It might just be your gas cap Many people don't know this, but a loose, cracked, or faulty gas cap can cause fuel to evaporate, thus cuing your check engine light.If this was indeed the trigger, your check engine light should go off within 10 or 20 miles once you're back on the road.

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What would cause check engine light to come on and off?

When the sensor is faulty, the computer cannot properly adjust the air/gasoline ratio and the light comes on.A malfunctioning sensor can cause loss of engine power and will eventually foul your spark plugs and catalytic converter.

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What would cause my service engine soon light to come on?

Common causes of the Service engine soon light: Minor engine issues like a loose fuel tank cap.Time for a scheduled service.Low level of any fluids(Low oil, coolant, brake fluid, Minor exhaust emission issues.

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What would make the check engine soon light for a cadddy come on?

The Check Engine light comes on when the ECU detects a problem with the engine emissions system. Have the ECU scanned to retrieve the code that has been set. This code will tell you what part is being effected but not necessarily the defective part.

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What are some parts in an engine?

ask a person who works on them... you noobI get that you are a monkey grease?

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Why would a transmission light come on?

There are many, many reasons that the check engine light may come on in you car, truck or SUV.A malfunctioning sensor, low tire pressure, low transmission fluid and so much more will cause the light to come on.But some reasons the check engine light comes on are much more common.

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Why would my security light come on?

The security light is a visual indication that something in the car's antitheft system is failing.The car thinks its being stolen or hotwired because it is not getting that signal from YOUR specific key.This is why the security light turns on and shuts down your vehicle.

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What are some reasons why people work?

so they have the money to do things. so they can can save up for something like a car.

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What are some reasons someone would need to find a car history report?

Everyone should get a car history when buying a vehicle. They will show if there are any title issues, serious accidents involved, or if the vehicle was in fact totaled at some point. Carfax provides these.

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Engine warning light comes on some times in your vs commodoreis this a bad thing?

Maybe. Get the error code checked at Autozone It may be a future problem you can prevent right now.

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What would cause my traction control light to come on?

But if the wheel speed sensors are not working, the traction control system will not be notified.Then your vehicle will lose traction, causing the traction control light to come on.If the traction gets to be too difficult, then your traction control light may illuminate on the dashboard.

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What would cause the brake warning light to come on?

When the brake fluid is low in the reservoir, it will bring the brake warning light on.There are many reasons why your brake fluid level could be low.It may be that your brake pads are worn down.Your brake fluid could also be low if you have a fluid leak.

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What would cause the TLC light to come on?

Never heard of a TLC light on a car.

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What would cause the SRS light to come on?

A common reason air bag lights come on is because something is interfering with the seat belt switch — the sensor that detects if the belt is properly fastened — which could trigger a false warning light related to the air bags, says Robert Foster, owner of Foster's Master Tech in Bozeman, Montana.

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What would cause the transmission light to come 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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What would cause my abs light to come on?

This in turn makes it one of the more common causes of the ABS light coming on.When the wheel speed sensor alerts the ABS that the wheels are moving at different speeds, a hydraulic valve is responsible for releasing, or increasing, the brake fluid pressure to prevent the wheels from losing tract...

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Why would a check engine light come on in a 1993 Isuzu trooper?

There is a problem with the emissions system. Make sure you gas cap is tight. If that is not the problem, I suggest you seek out professional help. It takes a progfessional to diagnois the problem.

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Why would the check engine light come on in a 1999 Nissan Altima?

Bad sensor have it checked. Depending on the sensor you won't have any real problems for a while

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Why would the check engine light come on because of the condenser?

The check engine light only comes on if the problem is emissions related, there is probable another problem. Find out what the code is, some parts stores check it for free.

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What are some safety features one would want on an infant car seat?

There are many safety features one would want on an infant car seat. Examples of safety features one would want on an infant car seat includes a high-tech safety belt and a safety harness.

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At what temperature does an auto warning light come on?

es depending on the vehicle, but usually over 220 degrees f

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What are some reasons why the engine is over heating in a very fast speed?

some reasons under powered engine for car and speed you are doing insuffient coolant in engine bad water pump bad fan hot weather and speed clogged radiator either outside or inside

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What can cause an emissions light to come on?

Possibly an O2 sensor malfunction. A majority of the "Emissions" or "Check Engine" light indications are from these sensors, especially if the car still runs well. Newer cars may have two O2 sensors - one before the catalytic converter and one after. It can also be triggered by a loose or missing...

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What can cause an airbag light to come on?

If your airbag light is on, it could also indicate a problem with your seat belts.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.In this case, you need to have your airbag ...

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Whats causing check engine light to come on?

The check engine light usually comes on for an fuel/air emissions problem There are many sensors and devices in the system so there can be many causes - open gas cap, bad oxygen sensors, bad egr valve, bad mass airflow sensor, bad fuel pump, injector, etc, etc, etc. The airbag light goes on when ...

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What causes engine warning light to come on?

Your spark plugs ignite the fuel in your engine's combustion chamber.If a spark plug or its wiring fails, you will notice a decrease in your engine's power, as well as it stalling from time to time.It will also cause your engine management light to become illuminated on the dashboard.

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What can cause the engine management light to come on?

Faulty spark plugs/wires/ignition system If a spark plug or its wiring fails, you will notice a decrease in your engine's power, as well as it stalling from time to time.It will also cause your engine management light to become illuminated on the dashboard.

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Engine and over drive lights comes on an car being to stall?

need to know year make and model

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Will an exhaust leak cause my check engine light to come on?

An exhaust leak can trigger a Check Engine Light due to the fact that depending on the location of the leak, the leak itself is introducing more oxygen into the exhaust gases.When too much oxygen is present due to the exhaust leak, this will cause Check Engine Light to come on.

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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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What can cause service engine soon light to come on?

Common causes of the Service engine soon light: Minor engine issues like a loose fuel tank cap.Time for a scheduled service.Low level of any fluids(Low oil, coolant, brake fluid, Minor exhaust emission issues.

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What could cause check engine light to come 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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What causes service engine soon light to come on?

Reason #1 – A Loose or Faulty Gas Cap – Yes, surprisingly this can cause the Check Engine or Service Engine Soon light to come on.Start by taking the gas cap off and putting it back on.You'll then need to drive the vehicle a few times to get the Onboard Diagnostic (OBD) system to reset and turn t...

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What can cause a check engine light to come 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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What could cause the check engine light to come 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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What are some common emission problems with a 1996 GEO Prism that would result in the check engine light illuminating?

every sensor in the system....a local auto parts store may have a LOANER scanner to see what code(sensor) it is..the replace...also you should be able to find a shop manual at the local library with the right information on this -- make copies of the pages, as they are usually for REFERENCE only....

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Why would your traction control come on for no reason when turn left or right?

telling you your car is using traction control to prevent tipping probably because you made a sharp turn going at high speeds

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What is the most common reason for check engine light?

Replacing a faulty oxygen sensor — a sensor used to optimize a vehicle's fuel-to-air mixture to increase gas mileage and reduce emissions — is the most common cause for a check engine light.

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What are some examples of an internal combustion engine?

Internal-combustion engines are the most broadly applied and widely used power-generating devices currently in existence.Examples include gasoline engines, diesel engines, gas-turbine engines, and rocket-propulsion systems.

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Why would the maintenance required light come on?

If this is a newer car it could be that the maintenance light comes on at a set mileage number that the manufacturer has determined.It could be the 50,000 mile or 75,000 mile on the odometer.This is set by the manufacturer so that you bring the car in for a check up.They simply reset something an...

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Why would battery warning light come on and off?

cause the tensen pulley could be going bad an my need to be replaced or even your alternater pulley can be getting ready to go bad

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What would cause the Check Engine light to come on and the Temp gage to never reach normal range?

I would suspect the thermostat is stuck open. Replace the thermostat.

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Would the antilock brake light come on if your rotors are bad?

no, its electrical fault i know it can make the anti lock come on if metal shavings are magnetically attracted to the anti lock sensor it will mess up the sensors reading and signal to the abs computer. so yes a grind-ed down rotor can affect abs not a warped rotor though also if the trigger whee...

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Why would the a t oil temp light come on?

a t oil light would be auto transmission oil if its getting hot could be slipping or just cloged or damaged oil cooler

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What would make a check engine light go 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.It could also be a warning of a serious problem that could damage your engine components.Your Check Engine Light blinks or glows depending on what's wrong with your vehi...

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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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What are some reasons to drive a truck?

safety, offroad, pull friends out when they get stuck, helps to pick up girls.

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What are some reasons to register a car?

If you live in NJ, avoiding jail time is good motivation.

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What are some reasons that the car will start smoking?

White smoke from the exhaust indicates coolant is entering the combustion chamber and normally is a symptom of a blown head gasket or cracked head. Blue smoke indicates the engine is burning oil, and can mean worn rings, or if it only smokes at startup, worn valve seals. Black smoke indicates an ...

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What are some of the reasons people draw?

10 Reasons Why Drawing Is Good For You Visualization. Drawing helps us to map out mental images of the world we see around us.Coordination. Drawing takes coordination between your hands, eyes, and brain. Cerebral benefits. Analytical Skills. Concentration. Understanding. Developing an “e...

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How do you fix an antitheft alarm that comes on for no apparent reason?

My 1998 Altima has been doing the very same thing for the past year. My temporary solution was to pull the fuse to the security alarm. That got rid of the annoying spontaneous alarms; however, when friends/family borrowed the car and tried to start it, they had no idea what was wrong. Unfortunate...

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Your astra 03 got very sluggish and now an engine light has come on what does this mean?

The engine light is essentially a warning indicator that something is wrong with the vehicle. Each engine light has it's own meaning and severity.

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What are some red colored reasonably priced cars to give as a gift on Valentine's Day?

I'd give her a nice, red, sporty PINTO. They're always sure to please.maybe not a pinto i would say mini couper... like a used one maybe!any cars in the Mazda series. Mazda 6 is a great car.

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What would cause the alternator light to come on and off On a 1989 Buick Skyhawk?

A failing alternator with sticky or worn out brushes.

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What would cause the alternator light to come on and off. On a1989 Buick Park Avenue.?

Something can be taxing the work of the alternator, or the alternator can be weak and needs replaced.

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What are some of the common reasons a person would need to take their car to a repair shop?

Some of the most common reasons a person would need to take their car into a repair shop are engine misfire, emissions leak, catalytic converter failure and EGR failure. All of these can be prevented from happening often with regular preventative care.

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What are reasons a car would be impounded?

Default on loan payments, illegal parking, abandoned vehicle, unregistered vehicle on public property, violations of township ordinances requiring vehicles to remain intact and not be an "eye sore," and private property cluttered with junk cars with out proper authority to run a "junkyard" busine...

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Why do your check engine light keep coming on?

'Well I have a 95 Buick LeSabre, and the check engine light keeps coming on. So I asked a guy at car-x, and he said that usually occurs when you go really slow on the interstate.'

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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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Will engine light come on if transmission is bad?

Transmission problems can cause the check engine light to come on as well, however it's not always as apparent as other components within the vehicle.This can result in a lack of engine power, or the transmission will not respond because there is a problem with it.

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Will bad gas make your service engine light come on?

Sometimes a tank of bad gas can cause a "check engine" light to come on.If your indicator light is caused by bad gas, it will shut itself back off after you run a tank or two of good gas through the car.Many automotive parts stores and some repair places will hook your car up to a diagnostic read...

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Why does check engine light come on when electrical wires are hooked up for a trailer?

You need to have the wiring checked right away before you damage something in the computer control system. Someone has probably tapped into a wrong wire and until you know which wire was tapped into, you are risking damage to the vehicle's computer system. The check engine light is a computer t...

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What are reasons that one would need cargo racks?

Cargo racks allow you to transport items on the roof of your car safely. It will also protect your item from the weather. This will allow more room inside the vehicle for passengers or family pets.

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Why does Engine management light comes on VX commodore?

There are many reasons why the management light will come on, you will have to have the car scanned at a repair shop, the fault code that made the light come on will be stored in the engine control module, and this can be decoded by and any good shop with the correct equipment

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Why does check engine light keep coming on?

replace your gas cap first - cheepest try. i had a crack in a vacuum hose that made it keep coming on. You have an emssions problem of some sort. It may be the gas cap and could be many other things. Unless you are knowledgable, take it to a professional if a new gas cap does not fix it. BTW, a l...

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Can low transmission fluid make engine light come on?

A malfunctioning sensor, low tire pressure, low transmission fluid and so much more will cause the light to come on.But some reasons the check engine light comes on are much more common.Here are 4 common reasons the check engine light is on, and for proper diagnosis be sure to visit your local au...

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When stop engine oil pressure light comes on?

It means you have low oil pressure, the causes of which can be varied. Low oil due to a leak or burning off could be a possibility, a bad oil pump is another, and bad oil sending unit is another possibility. First, I'd check the oil level and check for leaks, then repair those as needed. If that ...

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Will check engine light come on if transmission is bad?

Transmission problems can cause the check engine light to come on as well, however it's not always as apparent as other components within the vehicle.This can result in a lack of engine power, or the transmission will not respond because there is a problem with it.

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Engine light coming on and car is hesitant when driving?

Engine Light usually has to do with emissions if you bring it to auto zone or advanced auto they will read the code for you as long as the light is still on they should be able to help you from there. It is possible it could be an 02 sensor but there are quite a few sensors on the engine, another...

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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 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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Can alternator cause check engine light to come on?

A bad battery can cause problems in electrical and electronic parts, including the computer.It can even cause a "Check Engine" light.Next, test the alternator and pay close attention to the condition of its diodes.This can lead to rough shifting, performance problems, codes, and, yes, a "Check En...

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Will check engine light come on if gas is low?

yes.on some cars, refilling with the engine on (yes, people do that) is enough to set off an EVAP leak DTC which turns the check engine light on, because your fuel cap is off and engine is running.If you don't put your gas cap back on or you don't tighten it correctly or it fails, you can get a c...

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Does engine light come on for oil change?

Oil changes are essential maintenance for your car but it won't do anything that could trigger your check engine light to come on.If you notice the light after an oil change, something else is wrong.

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Can bad gas make check engine light come on?

Sometimes a tank of bad gas can cause a "check engine" light to come on.If your indicator light is caused by bad gas, it will shut itself back off after you run a tank or two of good gas through the car.Many automotive parts stores and some repair places will hook your car up to a diagnostic read...

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Will check engine light come on for transmission?

Transmission problems can cause the check engine light to come on as well, however it's not always as apparent as other components within the vehicle.This can result in a lack of engine power, or the transmission will not respond because there is a problem with it.

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What are the reasons a city would install speed bumps on roads?

The main purpose of a speed bump is to slow down traffic. A car going over a speed bump quickly risks damage to itself and its passengers. Speed bumps are best used in parking lots and other places where keeping traffic slow is important to avoid accidents with pedestrians and parked cars.

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What are the reasons a brake pedal would jam?

abs lol when the abs senses a skid it blocks the peddle preventing you from pushing it any further which would cause you to skid anymore

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Why would your check engine light come on after you had your torque converter changed in your 1999 300m Chrysler?

Something may not have been plugged in, have the system checked for codes to know possible causes.

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Why Ford Escape 2001 Engine Coolant light comes on?

If you are talking about the low coolant light then it is just low of coolant. If you are talking about the coolant temperature light, then the engine is overheating. This car is 7 years old. Have the cooling system serviced. Drain the coolant and flush the system. Install a new thermostat, and a...

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Why would my abs light and traction light come on a 2007 Saturn Vue?

The Anti-Lock Brake System and Traction Control System work together. The module detects a problem with the system. You need to have the system scanned and checked for codes to determine what's going on. Your friendly local auto parts store should provide that service for zip if you buy the parts...

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Why would battery light and brake light come on at same time?

The battery light will come on when the event that the battery is no longer being charged.The 'E' brake (parking brake) light comes on when the fluid is low in the master cylinder or there is a pressure difference in the brake system.Have the alternator checked and see if the battery cables are t...

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What are some good reasons to trade in a vehicle after it has been in an accident?

Who really wants a damaged car? If you can afford to unload the car and get another one that suits you, do it. All kinds of things can be wrong with a car that has been bashed. Unit body cars are commonly distorted all over. Sometimes one that has been crunched in a front corner shows warped meta...

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What are some of the key engine components in an engine?

Some very important engine components in modern automobile engines are engine block, flywheel, crankshaft, piston, etc.

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What might cause an tire maintenance light on a Nissan Altima to come on?

Low tire pressure, faulty TPMS sensor, faulty TPMS module, bad bearings overheating and causing excess tire pressure as a result.A tire with low air pressure will do that.

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What would cause the airbag light to come on in a 2004 Hyundai Accent?

Many things can cause the air bag light on. Could be the passenger seat weight sensing system needs to be recalibrated or fixed. Best would be to teake the vehicle to the HYUNDAI dealership and check the codes and then go from there.

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What would cause the ABS and brake light to come on?

A speed sensor is a device on the inside of your wheel that reads the speed at which the tires rotate and sends the information to the ABS control module.When the speed sensor isn't working properly, it will cause the ABS light to come on, and your anti-lock braking system will not work properly.

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What possible faults with the ABS braking system would make the warning light come on intermittently?

Could be a faulty sensor at the wheel. Also check for loose wires. A friend of mine had the same problem and after she had me pull the whole system apart it was just a loose connection at the sensor. She was due for a brake job anyhow so I did that too.

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