Can’t start the car

I can't start the car because when I push the break to start it the screen showing that the breaks aren't bushed yet….. my mechanic told me that the sensors which responsible for starting the car are lost … my question is what is the international name of these parts ??

My car has 40000 miles.
My car has an automatic transmission.

Experienced mechanics share their insights in answering this question :
There is a sensor mounted to the brake pedal assembly called a stop lamp switch, or brake lamp switch. It is mounted to the bracket that holds the brake pedal assembly to the firewall. There will be a three wire electrical connector that serves a couple of purposes. It signals for the taillights to come on when the brakes are pressed, plus it tells the computer that the brakes are pressed and that it is safe to start the vehicle. It is possible that when the sensor fails, the computer thinks that the brake pedal is not pressed, and therefore, does not allow the starting system to function, and possibly not shift out of the park position. If you need help with the replacement, or would like to have it diagnosed before replacement, YourMechanic has trained mechanics that can come to your home, or place of business, and perform the diagnosis and repairs for you.

How to Identify and Fix Common car Problems ?

Our sources include academic articles, blog posts, and personal essays from experienced mechanics :

The most common reasons a Dodge Journey won`t start are a dead battery, an alternator problem, or failed starter.
The most common causes for clicking noise and no crank in Dodge Journey are weak battery, corrosion on battery terminals, poor starter electrical connection, bad ground connection, and faulty starter motor.
Place your key in the driver`s side door lock—you might have to release the physical key from inside your key fob. Look for a release button to pop it out. Partially turn the key as if unlocking the door, but do not turn all the way; hold the key in this position for 30 seconds, but do not open the door.
If the car cranks when you turn the key, but the engine won`t start, it could be because fuel isn`t getting to the engine. One potential reason for this could be dirty fuel injectors. Over time, the fuel injector nozzles can become clogged with rust, corrosion or debris.
When your engine lacks sufficient lubrication, you`ll start to hear the moving parts—and often, they sound like clicking or ticking noises as they run. Low engine oil pressure could also be causing a lack of lubrication in your engine, resulting in the ticking noise you hear.
The most common reasons a Dodge Journey engine makes a ticking noise are low oil level or pressure, an issue with the ignition system, or an exhaust leak.
An immobiliser or immobilizer is an electronic security device fitted to a motor vehicle that prevents the engine from being started unless the correct key (transponder or smart key) is present. This prevents the vehicle from being “hot wired” after entry has been achieved and thus reduces motor vehicle theft.
Connected to the battery is the alternator, which works to generate power for your vehicle`s electrical components. When you have a brand-new battery but still can`t start the car, the alternator might be the issue. Cold and damp climates may increase wear on an alternator, causing it to fail.
If your car won`t start but the battery is good, the most common cause is a faulty starter – though it could also be to do with your fuel. You may have insufficient fuel to get the car going.
Hard start symptoms and starter failure may NOT be caused by the starter, but could actually be caused by the crankshaft position sensor. If your vehicle is experiencing one or more of these symptoms, the crankshaft sensor may be at fault.
Starting a vehicle with a bad crankshaft sensor can be risky and it`s unlikely to work. Disconnect the damaged sensor and try spraying a little starter fluid in the throttle body on your engine. Then, try cranking the engine to start the vehicle.
A dead battery is the most common reason why engines fail to start up. A common reason for batteries to fail is drain. Your car`s battery typically expends a small portion of its storage to start your car up, and then recharges from your alternator as you move.
A Bad Crankshaft Position Sensor

The crankshaft position sensor monitors the position and rotational speeds of the crankshaft. Without the crank sensor, the engine control module (ECM) wouldn`t know when to fire the fuel injectors and ignite the spark plugs.

The starter relay makes a clicking sound, but the engine does not rotate, which indicates that the starter motor is not receiving enough current from the relay. This may also be a sign of low or exhausted battery power. Only when it transmits enough current to the starter, the relay starts to work.
Low oil pressure might be the cause of those ticking sounds. When vital engine components don`t get adequate lubrication, it might cause other problems, and the engine starts to make these noises. A broken valve train component, such as lifters or cam followers, can also cause ticking, tapping, or clicking sounds.
A clicking sound when you start your car could suggest a problem with your car`s electrical system. A rapid clicking sound might hint at a battery- or alternator-related issue. A single loud click might mean problems with your starter motor.
Your car engine uses multiple valve lifters to open and close the engine valves. However, these valve lifters may wear out with constant use and time. And when they do, the lifter creates a metal-on-metal clicking noise, often known as a `lifter tick.
The most common Dodge problems include faulty electronic gear shifters, low mileage engine blow-outs, rusting, wobbly front ends, and dashboards that crack easily. Dodge has been around since the 1900s, making it an American classic with over one hundred years of experience in the industry.
If it takes longer than usual or your engine cranks slowly or hesitates, then this could be a sign that there is an electrical fault. A car`s engine needs electrical power to begin at the ignition switch. The battery provides this power, and if it`s failing or low on charge, then the engine will struggle to start.
If your ECU controls the anti-theft system, disconnecting the battery may lock you out of your car. Like desktop computers and most other electronics, disconnecting the battery cable for a short period will not fully reset your ECU due to the residual power remaining in the circuits.
Most modern immobilisers have a transponder embedded in the car`s key fob that transmits a code to the ECU whenever you insert the key into the ignition barrel.
on January 15, 2016

How do I activate the immobilizer system? The immobilizer system keeps your vehicle from being turned on with an invalid key. When the immobilizer system is activated, only a valid key can be used with the car. The system will automatically active when the ignition is turned off.

Turn the key backward two places to the Lock position, then wait three more minutes. When that has elapsed, try to start the car. There`s often a fuse associated with the immobilizer, and like all fuses, it can blow. Check the owner`s manual to locate the fuse and assess its condition.

Relevant Questions and Answers :

the most relevant questions and answers related to your specific issue

My car will not start Intermittently. I purchased a new battery 2 weeks ago and yesterday the car wouldn’t start. Got a jump and
ANSWER : The issue you are having is probably due to an intermittent fault in the starter motor itself or a deficiency in the starter electrical circuit, for example a large voltage drop due to a poor ground or a high resistance connection. These issues can be readily diagnosed and resolved on a mobile basis if you request a hard starting diagnostic. If you request that diagnostic, the responding certified mechanic will get this resolved for you promptly. Based on Toyota’s Factory Service Manual, the battery should not be disconnected if the vehicle engine is running. The battery acts as a large resistive voltage sink and consequently taking the battery out of the circuit, while the alternator is still running, can create a voltage spike on the car’s electrical system which is not good for voltage sensitive components such as the engine computer. If you have further questions or concerns, do not hesitate to re-contact YourMechanic as we are always here to help you.

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Map sensor car won’t start up good ?
ANSWER : Your MAP sensor is an important input for your computer. It helps determine the load on the engine to calculate the correct amount of fuel to inject. It sometimes takes a few seconds for the vehicle to realize that the sensor is not producing a good signal.

At that point, it will use other methods to determine the fuel rate, such as pre-programmed fuel maps, throttle position, etc. I would suggest replacing the MAP sensor and retesting. If you would like to have it checked first, a certified technician from YourMechanic will be able to scan your vehicle and test components to determine the root cause of your starting issue before making a repair.

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car hesitates when trying to start the car ,but when started then i shut car off and start again it will start right up
ANSWER : Hi there:

Sometimes when you have problems starting an engine initially it is caused by a restriction in fuel flow; caused either by clogged fuel injectors or the throttle body that needs to be cleaned. Once the fuel starts to flow and engine warms up, it’s much easier to start. However, it could also be an air filter, EGR valve or other components that causes this issue as well, which is why it’s best to have a professional mobile mechanic complete a car is hard to start inspection so they can pinpoint the source of this issue.

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My car will be starting perfect and when the gas tank gets lower it will start having problems .
ANSWER : Based on the information you gave, it sounds like a possible fuel starvation issue, caused by a partially blocked, in-tank fuel filter or a crack in the fuel pump housing. The remedy would be to replace the fuel pump assembly and filter. The overheating may be caused by several things, including a stuck thermostat, faulty water pump, or even a cracked head gasket. I suggest having a certified technician, like one from YourMechanic, inspect the relevant systems to pinpoint the cause of your vehicle’s hard starting issue and overheating problem.

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I put the wrong key in my car and a few weeks later my car just shut down and it will not start I believe it’s the computer but…
ANSWER : Hi there. What had happened is the wrong key set the security to the vehicle. This is to prevent the vehicle from starting with the wrong keys. Try removing the battery cables (+) and (-) for 13 minutes. During that time, put the original key in the ignition and turn it on. Activate everything in the car even though there is no power. Then remove the key and hook up the battery cables. The computer should have reset and reset the security. If the security is still being tripped, then I recommend seeking out a professional, such as one from Your Mechanic, to help you

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My car stutter starts, but only after driving it for a few minutes.
ANSWER : Hey there. This may also be caused by what is called the fuel pressure regulator. This is a unit that helps to maintain the fuel pressure at the proper level. When this is not working properly, the fuel pump may be pumping properly, but the fuel may not arrive at the fuel injectors at the proper psi. When this happens, this can cause a lean fuel condition which may cause the car to hesitate, misfire, or stall. If you would like to have an expert pinpoint the issue, a certified professional from YourMechanic can come to your car’s location to inspect the hard start problem and confirm which repairs are needed.

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Charging warning light comes on when i turn the key and try to start the car and the car want start but when someone tried to give
ANSWER : Hi there:

If you recently replaced your battery, the issue may be caused by a malfunctioning alternator or other electrical component that comprises the charging system on your Nissan Sentra. The best way to find out which item specifically is faulty, is to have a professional mobile mechanic complete a car is hard to start inspection. This will allow the mechanic to determine the precise source of what’s going on with your Sentra and recommend or complete the right repairs.

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After you sit with the car running, the car starts smoking and eventually starts shaking
ANSWER : Hi, thanks for writing in. It all depends where the smoke is coming from. If it is from the exhaust then your engine be running rich and starting to foul out the spark plugs. Have the computer tested to see if any codes are present that could indicate what is causing the smoke. If you see smoke from the engine compartment then you may be running the engine hot due to low airflow over the radiator. Have the cooling fan checked to make sure it is running. If it is running and the vehicle has the AC running and the blower is on or near high then you may be using more energy than the alternator can keep up with. This can cause the radiator fan to not turn as fast as it should and let the temperature to rise if idled for long periods. If you would like help, consider having an expert automotive technician from YourMechanic come to your home or office to inspect and diagnose this issue for you, and make or suggest any repairs as needed.

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