Why do car engine go off and on when driving?

Cars & Vehicles
Opel Corsa

its not turning off and on its just losing and gaining rpm`s

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Why do my headlights go off and on while I am driving?

Some cars have lights that turn on lights automatically due to outside brightness

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Why does the check engine light go on and off on a 2003 Harley?

Because there's an intermittent issue which needs to be addressed. You need to have the DTCs (fault codes) read to find out which codes you have, what your active codes are, what your inactive codes are, and how many counts of each fault you have.

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Why does check engine light go off when disconnect battery and come back on the next day?

The check engine light goes on because there is a problem with the engine control system. Until the problem is fixed it will continue to come back on even after you clear it by disconnecting the battery.

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Why a car won't turn on when the Dashboard Lights and Gauges go on and off quickly?

loose battery connection, or dead battery.

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Why does your dashboard light and clock light go on and off when breaks are applied?

Check the brake light bulbs, one may be incorrectly installed.

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Why does car shut off when putting it into drive and pressing on gas?

Check fuel filter for clogging, lines and fuel pump may be going on you. Good luck.

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Your headlights go on and off by self while driving?

I would check to see if the bulbs are loose or even if wires are loose. Check the grounds to see if they are good, and be sure that there are no exposed wires, this could cause a short if they touch anything. Next, check your fuse panels. If the fuse is bad the lights should stay off but I have b...

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Why do your car start when your trac light light is on im in park when you go to drive your car jerk and go dead?

Check TORQUE CONVERTER

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You just install a used engine on your Lexus sc 400 why when you put it on park or drive the car accelerate on and off?

could be many problems like vacuum or wiring you may want to spend some money on hooking up your computer for a diagnostic test should only be one hour labor time for this test

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How do you get your dash lights to go off when they stay on and the car is off?

So what is the problem with my stupid car with the lights on the dashlight problem?

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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 does your air conditioner go off when your car engine is under a load?

some cars are designed to turn off comp when kicked into passing gear to give you more power

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Why does speedometer hang at 45 when driving and goes to 0 when car cut off?

well when the car shutts off it will cut the power to your accessorie of the vehicle which runs the speedometer fuel guage water temp. ect. But if you are driving turn off the key and then turn it to accessories on that's 1 extra turn right before starting point then your accessories will work wh...

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Why do lights go off when switched to bright?

Bulbs burned out, possible headlight switch

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Why won't the tail lights go off when I park and turn off the headlights?

Is it the taillights or the brake lights? If taillights it may be a wiring problem, If brake lights check the switch on the brake pedal

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Why would your car engine cut off while driving downhill?

why does it matter if you're driving down a hill? At least it didn't cut off when you were driving up a hill? And I don't know why it would cut off I'm 13.

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Why do my headlights stay on when car is off?

In that case, you can try setting the parking brake to see if that shuts the headlights off, as setting the parking brake typically disables daytime running lights.If a bad headlight relay is a reason that your headlights won't turn off, then the fix there is also to just replace the relay.

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Why do my car lights keep blinking on and off?

It is important to keep an eye out for the dashboard lights flickering because if the only symptom is a dead battery, then it could simply be that the battery has outlived its usefulness.The above symptoms could also point toward a blown fuse, bad wiring or a loose belt.

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When idling and driving why does engine miss?

asuming its a blazer around the majority of the others on this site a pluged fuel injector or a spark plug wire is rubbed and touching a ground point

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Why when i Put car in gear to drive or reverse it jerks and turns off?

Depending on the year/make/model of your car,It may very well be that your locking Torque Converter is locking at the wrong time. If,for instance,it's a GM vehicle,there is a 4 prong plug on the side of the transmission. Un-plug this and if the problem goes away you knw you have a bad lock-up sol...

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1999 Nissan altima headlight will not come on and parking lights will not go off when car is turned off?

headlight switch is bad

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When regular driving do you put overdrive on or off?

If you are on the highway...or anywhere where speeds exceed 50-55 mph then you should have it on, otherwise it doesnt matter...even if it is on, it wont be used until you hit a high enough speed.

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What to do when the car shuts off when driving?

my truck did that and i ( THANK GOD) was able to shift to neutral and then actually turn the car off ( it had seemed to go dead, the radio went of and i could not really steer ) and then I turned the car on again. hope this helps.

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Why does a 1993 Explorer engine cut out when first pressing on the gas and runs ruff in 1st gear and check engine will turn on but when on freeway check engine light turns off and runs fine?

sounds like a (tps) throttle position sensor. need to have it put on a scanner to check what trouble codes are stored in the ecm.

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Why car ac compressor on and off?

Some a/c compressors cycle on and off to maintain a set temperature.

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What causes headlights to go off and on when key switch is on?

its to conserve power to start veh. with full voltage to starter headlights will come on after starting car

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Why does your cooling fan still ran when the engine is switched off on your car?

The cooling fan is controlled by a temperature activated switch, usually installed in the radiator. When the coolant temp rises to a preset setting the switch closes and turns on the fan.The temperature of the coolant in the engine actually goes up immediately after shutdown as the coolant is no ...

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Why does my door ajar alarm keep coming on and going off when my driver's door is locked?

why does my door ajar alarm keep coming on and off while driving my car.

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Why on a 1992 town car interior lights stay on turned off on dimmer switch why won't they go off?

One of your door switches is probably malfunctioning. Find the switches usually on the hinge side attached to the body and use a little wd40 and move it in and out and it may start working. If not the bad one will have to be replaced.

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Why does the check engine oil level light stay on and the engine keeps cutting off?

Your oil compression is down probably... check the oil pan for rust and such.

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Why do cars turn off when stopped?

In automobiles, a start-stop system or stop-start system automatically shuts down and restarts the internal combustion engine to reduce the amount of time the engine spends idling, thereby reducing fuel consumption and emissions.The engine restarts when the clutch is pressed prior to selecting a ...

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Why does sometimes the ABS and brake lights go on and off while driving and now the fluid is low in the master cylinder of a 1994 Legend?

you should have you're brake pads checked for wear. though it may also be a leaking brake line

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Do airbags go off when rear ended?

Being rear ended isn't so likely to trip the front airbag sensors in the car that's rear ended.The car doing the rear ending, on the other hand, is more likely to have the front airbags deploy if the crash is severe enough.

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Why do headlights lights flicker and service light come on after driving and when putting car in park?

Have your alternator tested. They will sometimes do that when they are putting out low outputs at low rpm.

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Why is your Parking light blinking when car is on and off?

This is probably caused by leaving your Hazard Lights on, but may also be an electrical short. Have it checked by an automotive electrical technician if you have tried to turn off the Hazard Lights switch and they still stay on

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Why would rear parking and brake lights stay on when the car is shut off?

There are two or more faults at work here depending on the car.If your car has a relay that runs brake lights or Tail lights one or both could be bad.ORIf your car has these items controlled by a body control module it could be bad or with this system the computer grounds the bulbs to make them w...

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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 does the battery light come on and off when the car is running?

This could happen for different causes.1. Your battery is making contact with a surface (like the hood, seat frame or trunk battery holder.) in BMW 325 or Cadillac north-star cases.2. The positive cables from the alternation or starter are bad and making contact with the engine, manifolds or body...

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Why do the headlights on my 96 Geo Tracker stay on even when the engine is off?

They don't have automatic light features.

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Why is fluid leaking out on a corsa when engine is running but stops when engine is turned off?

what kind of fluid, and what's a corsa?

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Why is check engine light blinkling on and off on 1996 mercury cougar?

If the check engine light is blinking that means that an engine cylindermisfire has been detected . You can drive it in for repair , just avoid anyrapid acceleration or deceleration because you can damage the catalyticconverter

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Why does your car radio not turn off when you turn the engine off?

Some cars have a time delay before it turns off. I had a Buick Park Avenue that was like that. If you open the door the radio should go off. If not, you may have a wiring problem.

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Why does the alarm go off when opening the door?

my hand set wont unlock my doors with new batteries and when i unlock the door with the key and open it the alarm sounds and wont let me start the car

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Why does a 1995 Lincoln's engine cut off while driving?

is your check engine light on? and what kind of Lincoln is it? its probably becasue your car is NFG or POS

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Why do my headlights flicker on and off?

There are several factors that can cause headlights to flicker while driving.The more common problems could be related to the headlight bulbs themselves, a weak battery, or even the alternator starting to fail.

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Why do my LED lights stay on when switched off?

This may be due to the type of light switch or dimmer or an incorrectly connected switch.Even an unfavorable cable routing can be responsible for the glow.The afterglow issue is usually only visible after switching from old light bulbs to LEDs.

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Why won't the front lights go out when everything is turned off on Renault Modus?

If the front lights go out when everything is turned off on a Renault Modus, this may be due to grounded wiring. Check all wiring that lead to the front lights and the connectors to the battery.

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Why does my 50cc starway scooter cut out when i try and drive off?

Sounds like a fuel system problem. You may need to clean and/or rebuild the carburetor.

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Why would my engine shut off while driving?

The battery can only run for so long before it's completely drained.Malfunctioning ignition switch.When the ignition switch is worn down, there can be a loss of power to the engine because of vibration like hitting a rough patch of road.This loss of power causes the engine of the car to die while...

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Can a check engine light go off on its own?

This light displays itself when the onboard computer system recognizes an electrical or mechanical problem with your vehicle.When the problem is fixed, the engine light does not always turn off.If it does not go off, then your engine has a problem.

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Why do engines lose power and rev high after turning off and billow black smoke everywhere?

Most likely your idle control solenoid is acting up making your engine run at too high of an Idle, the solenoid is stuck in hi instead of idling down when the gnition is turned off.

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Why does my 96 explorer say i have a charging problem when my lights go on and while driving?

The warning light comes on because the charging system is failing. Have your local auto parts store test the charging system to determine the cause. They will perform the test at no cost.

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How do you start a car and drive off?

Part 2 Beginning to Drive Press down fully on the clutch. Once the car is running, you will need to put the car into gear before you can start moving. Move the gear shift into first gear. Slowly lift your foot off the clutch. Begin pressing down on the accelerator. Beware of stalling. Mo...

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The engine management light flashes on and off when i start the car up on a peugeot 306?

If your engine management light comes on and off then you should have your car checked. Most cars' gauges flash when the car is initially started.First make sure that it is indeed rust on your door and not something else. Once you've determined what it is on the door it can be treated. If it is r...

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Why is engine control indicator coming on when driving then car wants to cut out?

The light is telling you something is wrong with the car. It cuts out because of the problem the warning light was trying to tell you was present. Take it to a mechanic and have them check to see what trouble codes the cars computer has then you know what needs repaired.

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Why does your ignition remain running when the demister is on and why does the engine cut out when you turn the demister off?

subaru turbos do that to

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Why does my car jerk when I stop and go?

It's actually one of the most common reasons why a car jerks when accelerating.Your car's engine needs both fuel and air to do its work.A block in the fuel line or air intake can make the car jerk during acceleration as it loses one, or even both of the essential factors in keeping the engine run...

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Why does your oil gauge alarm keep going off and on Oil recently changed?

Physically check the engine oil level with the dipstick to confirm the engine is full of oil. If the engine is full, the oil level sensor or wiring to it may be at fault. If the level is low, go back to where the oil was changed and complain.

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Why do cars not have to get faster and faster when it sets off?

A car has a variable power setting called a throttle.So you can vary the power and thus the acceleration and maximum speed you reach.Then there is friction resisting the movement of the car, so if the faster it goes the more power is required to to make it go faster or even maintain the speed you...

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Why does the rpms go up and down when the engine is in indle?

This is often the result , in fuel injected cars, when there is an intake manifold vacuum leak ( i.e. loose or disconnected vacuum line, intake gasket leak , injector seal leak or many other possible leaks in the air intake system ). It is also a symptom of a faulty or maladjusted throttle positi...

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Why do we park on driveways and drive on parkways?

The people park in driveways because a drive way is a place to park and parkways is a place were people go to work.

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Why do you park on driveways and drive on parkways?

Parkways earned their name because they traditionally have greenery similar to that of a park. You do drive on driveways on the way to your house (especially if you have a long driveway).

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Why do engine coolant fan keeping running after engine is turn off on 1999 intrigue?

The engine coolant fan can keep running after the engine is turned off in any car because the temperature gauge is in the radiator. As long as the radiator is still hot, the fan will keep running until the temperature gauge says it has cooled enough.

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Why do you have to avoid turning off the engine immediately after long drives?

After parking your car, let the engine cool down with all the accessories turned off (lights, A/C, stereo), but with the engine still running for a few minutes.This allows the engine's cooling system to pump water and coolant in and around the engine, giving it ample time to cool down, and thus h...

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Why will your car start and when you drive it for a while it just shuts off?

What kind of car? More than likely a bad alternator, could also be a bad distributor or other spark related parts.

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Why does my Car radio turn off and on?

The wires are proboly came loose or something.

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Why does ac commpresser kick on and off in car?

its completely normal..if by shutting off you mean the pulley quits its normal all that's happening is your compressor is cycling the freon through and charging it up

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When in a traffic jam on a hill can you switch off engine and roll down?

Probably not a good idea, your power steering and power brakes will not be functioning.

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Will check engine light go off after I drive awhile since it came on after the battery was changed?

Replacing the battery should not have triggered the check engine light. The check engine light comes on when there is a problem with the emission system. Saying that, I would drive it for a while to see if the light does go out. If the light does not go out have the ECU scanned to retrieve the tr...

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Why does car turn off when I turn on AC?

It may be from low power to the computer, a faulty fuel pump due to bad connection, or a low battery.The blower fan draws a lot of current, perhaps that is dropping the voltage suddenly and causing some electrical component in the ignition system or the anti theft system to shut down the car.The ...

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When you start engine alarm starts and wont turn off?

You can take the "radio" fuse out and put it back in. This should work to reset eveverything.

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Why wont your car turn off when you turn off key and remove it?

That means you need to check the head lights. Suprisingly enough head lights on cars cause most problems. Especially on Fords.

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I just got subs an amp and a deck installed in my car. When I drive about every 5-10 minutes my subs shut off and later come back on. Why is it doing this Its driving me crazy?

Overloaded circuit breaker. If you didn't beef up the electrical wiring from the battery to the new amp and subs, the original wiring is trying to supply the additional current and it just can't stand up to the load, so it "pops" the breaker ... after it cools off sufficiently, it turns itself ba...

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Why coolant leaks when engine is off but heat wont work when engine running?

The heat is not working because you are very low on coolant, probably because of the leak.Seems to me that it should leak worse when it is running, so I am going to assume you are talking about the coolant overflowing the reservoir, in which case goes back to you being low on coolant and the engi...

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Why are your headlights flashing on and off randomly while driving?

Loose connection somewhere. Bad switch maybe.

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Why does Peugeot 205 diesel engine run on when ignition turned off?

you need to replace the stop solenoid on the top of the fuel pump if it is a lucas pump. I had the same problem, but they are are fantastic price, ie £72 plus vat from main dealer, so shop around or get one from a breakers. mine started without having to bleed the system, but you might have to. d...

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What does it mean when your service engine light blinks on and off?

When the Check Engine or Service Engine Soon light starts blinking (as opposed to staying steadily illuminated), this means that a catalytic converter-damaging condition is occurring.When this Check Engine or Service Engine Soon light flashes, you should pull over safely and shut the vehicle off ...

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Why does my car radio keep turning off and on?

When a car stereo cuts out and then turns back on: The problem is usually in the wiring.If the display shuts off at the same time the music cuts out, then the unit is probably losing power.Tracking down the fault can be difficult when the radio is functioning, since it actually has power at that ...

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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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What does it mean when the engine and oil light won't go off even when they say they fixed the car?

IT MEANS YOU SHOULD NOT PAY the bill or Call the BBB to report THEM. IF the car was REALLY fixed - The Lights would NOT be ON.The Lights are there 4 a REASON+BUTT+I would have manual GUAGES if it was I-I would have 2 see the Manual Guage READINGS 2 believe the people-Manual is always better than ...

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Is it damaging to an car engine to leave the airconditioning on when turning engine off?

No it is not. But I have heard it could be damaging over time to the A/C compressor to turn off the engine with the A/C on.

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Recently my amp in my car messed up it keeps going on and off when you hook it up and the protection light is on any one have any idea why it would do this?

The amp is damaged internally, the power is loose, the ground is loose, the control wire from the deck is loose.

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Why doe brake pedal get hard when turn off engine?

On modern vehicles the brake system is enhanced by a vacuum operated "booster". This makes the brake pedal softer and more responsive. When the engine is turned off the engine no longer produces vacuum to supply the booster so the pedal gets hard.

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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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Why do cars go on roads?

cars are made to run on roads not on the ,the side of peopleBecause there are laws saying you can't drive on the sidewalk!!

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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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How do you fix a car electrical problem like the wipers and blinker go off when you use the horn?

Need more info like the year, make and model.I would suspect you have a loose or bad ground connection.

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Why would your 1998 new beetle while turned off hours after driving have a fan sound coming on and off?

Your coolant temperature sensor could be malfunctioning and signaling the fans cool the engine. It is normal, especially, in hot whether for the cooling fans to come on randomly as the engine cools, but if the engine is already cold then there is an issue that needs to be addressed.

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Why do my rear lights stay on when the car is off?

Brake & tail lights stay on after car is off and lights are not turned on.The brake light switch is probably out of adjustment, missing, or bad.When you press the brakes, the brake pedal moves away from the brake light switch, causing the brake lights to illuminate.If the switch is bad, they ...

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Do all 1989 Camaros have a fan switch in the car that has to be turned on and off every time you drive and if so why?

umm i don't know of any car that has a manual fan switch the only reason someone would put one in is if the fan didn't come on by itself

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Why does your car jerk when going on the road?

Idiot 16 year old drivers who don't know what they are doingAdded:It also could be a problem with the fuel injection or fuel filter not letting enough fuel in the chamber for the combustion process.

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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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Why would the car alarm go off when you jump start a 1998 VW Cabriolet?

I do not know, but it is not unusual to your vehicle. Mine does the same. Bring your spare key outside with you and when it goes off, get out, close the door and lock & unlock it to disable the alarm. If you don't have the spare key, then remove the key from the ignition while the battery is ...

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Why does my car alarm keep going off when I lock it?

Poor Connection of the Hood Latch If the car alarm keeps going off even after cleaning the hood latch sensor, the problem could be a defective hood latch connection.It can also set off false alarms because the sensor cannot respond properly to the given commands.The sensor is located near the he...

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Why does the car shut off when you let go of the gas?

The most common reasons would be either the idle is not set properly or there is a vacuum leak. There can be other problems that can cause this also but, with the limited information in this question the problems listed above are the highest chance of what is wrong.

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Why do your lights inside your car keep coming on and off?

Do you mean the dome light, or, dash lites?In either case, there is an intermittent. Might be the light switch. or a bad fuse connection. Or, poor connection at fuse box. Or, pinched wire in the harness(This usually blows fuse, though.) If it is only the dome light, flickerring when a door is ope...

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Why do the car feels like it want to cut off when pressing on the brakes?

hi u could hav a leak on u vacuum pipe from u engine to the brake servo or u brake servo is faulty

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Why do my tail lights stay on when the car is off?

You need to disconnect your battery while the car is off or until you resolve this issue.The most likely cause for the brake lights staying on is the brake light switch sticking closed.You can disconnect the plug from the brake light switch at the brake light pedal to see if the lights turn off.

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Why do the tail lights remain on if the car and lights are off?

Check itOn top of the brake pedal there is the shaft that connects the brake pedal to the brake switch.There could be of two problems with your tail lights being constantly on.1: The spacer between the the brake pedal switch and the shaft of the brake pedal is broke ( The brake pedal switch which...

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Why do my car lights turn on and off by themselves?

Hello, thank you for writing in.The vehicle may be having issues with the headlight circuitry.This may mean that the sensor, photocell, body control module, replacement headlight, or a fuse/relay has failed.Something is allowing power to be sent to the headlights when the vehicle should be off.

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