I have a small white canister hanging in the front of my car under the hood. It appears to be hanging by wires

I have a small white canister (looks like a large shot gun shell) hanging in the front of my car under the hood. It appears to be hanging by wires. I recently git an oil change, could they have caused this? What do you think it is?

My car has 80000 miles.
My car has an automatic transmission.

Experienced mechanics share their insights in answering this question :
Hello, thank you for writing in. There are several electrical components that are cylindrical in shape. Is it hanging down under the vehicle, or is it only visible when looking into the engine compartment when the hood is up? At the front of the vehicle are solenoids, resistors, diodes, capacitors, and sensors that can all take forms similar to what you describe. You may want to try finding a part number or brand on the unit that will help identify it. If it looks as if it has fallen out of place, you may also want to try and find where it is supposed to be mounted. It is impossible to tell at this point in time.

How to Identify and Fix Common car Problems ?

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

What Does Chrysler Code P0456 Mean? Chrysler P0456 definition: Evaporative emission control system leak (small). Repair Urgency: Get this fixed within the next month to prevent drivability problems and excessive fuel consumption.
The EGR valve on this engine is located at the end of the cylinder head towards the transmission side. It is bolted to the rear cylinder head.
The most common reasons a Chrysler Sebring engine stalling are the fuel system, the air intake system, or the ignition system. Search our network of RepairPal Certified shops near you to speak with a technician about your issue.
1 Answer. mosieczanek104, it is located right next to your oil filter, toward the driver side.
A failure to maintain the correct fuel tank pressure results in trouble code P0456. This means that a leak is allowing vapors to escape, either directly from the fuel tank or from related hoses and parts.
The cause of code P0456 can be a small leak at any of the system components or hose connections. The two most common causes of the code is the gas cap vent and the purge vent valve will not seal completely.
The EGR solenoid valve is located in the bank of solenoids on the engine. It supplies intake manifold vacuum to the EGR valve. Locate the EGR valve in the engine solenoid valve bank, and disconnect the vacuum hose from the valve (see illustration).
It could be a dead alternator, a bad coolant sensor or lack of fuel, just to name a few. Is your car stalling while accelerating? If so, then it could be a major vacuum leak, clogged fuel filter or a bad fuel pump. If your vehicle is stalling when driving, seek professional help to track down and fix the issue.
Having a vehicle stall while you`re driving can be an alarming experience, so it`s a good idea to know what to expect and how to respond. When the engine loses power, you`ll lose power steering and brakes, so you need to act immediately. Push the brakes and steer it over to the side of the road.
Starting relay position

In most cars, it will be under the hood, in a large box with a black lid. This is where car fuses and relays are installed. It is also called a fuse box. This box is usually installed on the driver`s side of the vehicle.

Location of Starter Relays

It`ll be under the hood, inside the large box with the black cover, in most autos. This is where a vehicle`s fuses and relays are mounted, and it`s also known as the fuse box. The box is normally mounted on the driver`s side of the vehicle.

It`s generally positioned between your vehicle`s ignition module and the engine. Solenoids (also typically called starter solenoids or starter relays) operate by receiving both large electrical currents from your vehicle`s battery and smaller electrical currents from the ignition system when the car key is turned.
A permanent code is stored in non-volatile memory and the only way to erase it is for the car to run the same test that caused the code to set in the first place, but, of course, it needs to pass the test.
As we mentioned above, the most common cause of an EVAP system leak Diagnostic Trouble Codes (DTC) is a loose fuel cap. If you see the check engine light come on and have double-checked that the fuel cap is sealed, you should consider having your vehicle looked at by a technician.
Trouble Code: P0456 Evaporative Emissions System – Small Leak Detected. The EVAP system is a closed system that captures fuel tank vapors and prevents them from escaping into the atmosphere.
When your EGR valve isn`t working correctly more emissions will be emitted. As aforementioned if the valve is stuck open the temperature is lowered which prevents all the fuel from burning. This means an increased flow of unburned hydrocarbon gases coming out of the tailpipe.
EGR Fraction Based Control

Critical sensors are an exhaust manifold pressure sensor (P2), an intake manifold pressure sensor (P2) and a speed density estimate of total mass flow. Exhaust and intake manifold pressures are used to control the EGR valve and VGT vanes.

Technically you can drive without a working EGR valve.

It won`t affect the health of your engine, but it will hurt the environment. The role of your EGR valve is to reduce the number of toxic NOx gases in the air, so if it isn`t working quite right, more toxic gases will be released into the air.

When the EGR control solenoid is activated, a passage is opened up that allows exhaust gases into the intake manifold. The EGR solenoid is controlled by the engine computer, and activated at very specific times in order to achieve the best performance, efficiency, and emissions from the engine.
The most common sensor which can lead to your car stalling is the manifold absolute pressure sensor (MAP) or the mass air flow sensor (MAF). Most cars typically have one or the other.
Bad solenoid may be causing vehicle to stall.
If the engine stalls while idling or driving, the engine may be running out of fuel or not receiving enough fuel pressure to keep it running. The most likely cause of this kind of stalling would be a fuel pump that is not spinning fast enough or is intermittently cutting out.
Stalling the engine in a manual car is NOT bad for the vehicle, so long as it`s not done 8 or 10 times every day.
When the idle air control valve fails, it inhibits the flow of air through the engine. When the car can`t receive air, it leads to engine stalling. The severity of this symptom can range from occasional stalling at first, to stalling immediately after ignition.

Relevant Questions and Answers :

the most relevant questions and answers related to your specific issue

I have a small white canister hanging in the front of my car under the hood. It appears to be hanging by wires
ANSWER : Hello, thank you for writing in. There are several electrical components that are cylindrical in shape. Is it hanging down under the vehicle, or is it only visible when looking into the engine compartment when the hood is up? At the front of the vehicle are solenoids, resistors, diodes, capacitors, and sensors that can all take forms similar to what you describe. You may want to try finding a part number or brand on the unit that will help identify it. If it looks as if it has fallen out of place, you may also want to try and find where it is supposed to be mounted. It is impossible to tell at this point in time.

I have a small oil leak in my car. Is it safe to drive it to work? I only see small puddles in the front area of my car.
ANSWER : Hey there. An oil leak can vary from anything very minor to very major depending on the location and the volume of oil being leaked. Often times, a small oil leak may be present surrounding a major gasket such as a valve cover, timing chain, or oil pan gasket. The key is to be sure your car has the proper amount of oil in it at all times when you have a leak. I would recommend having an expert from YourMechanic come to your location to diagnose the oil leak and follow through with repairs.

Car will crank but no start… Fuel pump not coming on. New pump, relay, etc. Will start when hot wire runs from pump wires to bat
ANSWER : There are a couple of approaches to take here – either start from the battery and work "towards" the fuel pump, fuse box, ignition switch, fuel pump relay, and wiring connections in between. Or, as you have done, start at the pump with 12v, and move backwards towards the battery. This will require a GM service manual, or wiring diagram at least, with connection locations as well.

I would recommend having a certified technician from YourMechanic diagnose this starting issue, get an accurate assessment of damage and cost estimate for repairs. YourMechanic.com can dispatch a mobile, professional mechanic to your location for this repair.

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

Power steering loss, no belts are turning but the car is running fine. I also have a soft pedal. Whats wrong with my car?
ANSWER : I have only seen this situation once in my 30+ years and it turned out to be a broken crankshaft pulley. Belts are driven by the engine. The crankshaft pulley spins the belts, which in turn spin the air conditioner compressor, power steering and water pumps, and the alternator. The vehicle should be towed to your local repair shop and not driven. Without the water pump spinning to circulate the coolant, the engine will quickly overheat and result in more extensive damage.

Will a missing air box resonator stop my car from going over 10mph?
ANSWER : Hi There,
The air box resonator missing should not impact the running condition of your vehicle at all. If the air box had cracks in it, this may have caused excess air to be injected into the intake system which may affect the reading of something called the mass air flow sensor which meters the air intake into the engine. When this is producing faulty readings or detects abnormal air intake, this may cause the jerking reactions you describe. The mass air flow sensor monitors air intake as it is mixed with fuel prior to being injected into the motor. This sensor relays vital information to the ECM which uses this to make adjustments to fuel supply to the motor. A dirty or faulty sensor can cause an imbalanced air/fuel load to be supplied to the motor which results in an over fueling or under fueling situation depending on the conditions. This type of inconsistent fuel supply to the motor may cause a hesitation, loss of power, a jerking reaction, potentially a bit of black exhaust smoke and typically a strong smell of fuel when this sensor is malfunctioning. I would suggest having a professional from Your Mechanic come to your home to diagnose and inspect your vehicle.

After changing my struts on 2010 Focus my front end had dropped I can’t see my hood when driving.
ANSWER : The struts that were installed in the car may have been the wrong style or the wrong design for your vehicle causing the front end to drop down more. Usually the front end would rise more as the springs would be new and not sag. I recommend checking to see what parts were installed and verify the make and model it was used for. Some of the struts are universal and can be used on different vehicles. You may have to have a different set installed to make the ride height correct for your driving conditions. If you need further assistance with your struts being too low, then seek out a professional, such as one from Your Mechanic, to help you.

Car crash and SRS light
ANSWER : Hey there. It is likely that your front impact sensor was damaged during the frontal collision but not with enough force to deploy the air bags. There is a threshold for how hard a vehicle must be hit in order to deploy the airbags that is set by the manufacturer that may not have been met. When the SRS light is illuminated, this means that the air bags will not deploy in the event of an accident, even if it is hit hard enough. I would recommend having the frontal collision sensor inspected and replaced if necessary by the dealer or a professional who is proficient in air bag repair.