Why is my vehicle turning off when i drive it or when i first try turn it on in the mornings it turns off itself
When I first turn it on in the mornings it turns off on its own after a few times that i started when it finally stays on it is having trouble staying on the RPM is going up and down the whole time and then after a while it turns off or when i drive it in the streets it turns off. What could it be ?
My car has 215000 miles.
My car has an automatic transmission.
Experienced mechanics share their insights in answering this question :
Hello there. There could be multiple mechanical components or sensors that might be faulty that cause this issue on your Expedition. Initially, you should have a professional mechanic download any existing error codes and inspect a few possible components including the O2, crank sensor, mass air flow sensor or the idle air control actuator. It might be a good idea for you to contact one of our local professional mechanics to complete an engine shuts off while driving inspection; which will allow them to pinpoint the source of your engine shutting off problems.
How to Identify and Fix Common car Problems ?
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Common reasons for this to happen:
Low fuel pressure, dirty or defective fuel injectors, or broken fuel pump: The fuel pump is responsible for transferring fuel from the tank to the engine.
Most commonly when the car stalls while driving, but starts right up after, the cause is an intermittently failing crankshaft position sensor or camshaft position sensor. The first step to diagnosing this problem however, would be to scan the engine control module to check for fault codes.
Engines usually stop suddenly only if they suffer from a lack of fuel or sparks . An engine that stops dead without prior warning has probably had a sudden ignition failure – although if it locks solid it`s more likely to have seized.
Specially tuned for truck customers, Auto Start-Stop shuts off the engine when the vehicle is at a stop – except when towing or in four-wheel-drive mode – to give drivers power on demand when they need it most. When the brake is released, the engine restarts quickly.
Malfunctioning spark plugs can make an engine stop for a while and resume its normal functioning. It can happen when you are driving. The engine can also sound rough when idle. The misfires affect the proper functioning of your car`s engine due to failing spark plugs that have no power to ignite the fuel-air mixture.
But if the alternator isn`t functioning properly and the battery dies, your car may eventually lose power and stall or completely shut off. So, can your battery die while the car is running? Absolutely. And oftentimes, this issue is caused by a combination of alternator and battery problems.
Your vehicle may be equipped with an engine idle shutdown system. This system automatically shuts down your engine when it has been idling in P (Park) or N (Neutral) for five minutes (parking brake set) or 15 minutes (parking brake not set).
The most common reason your car starts then dies immediately is because of a lack of fuel in the engine. This often happens because there is a small amount of fuel in the fuel rail, which helps to start the engine. However, there is no fuel pressure to keep the engine running.
When your engine shuts off when you slow the car down its often as a result of a: Malfunctioning transmission. Low fuel pressure, dirty or defective fuel injectors, or broken fuel pump. Bad oxygen sensor or mass flow sensor.
Many modern vehicles are designed with several fail-safes to help protect the engine in adverse conditions. One of this is an automatic shutoff when the oil pressure drops to a certain level, or the oil level drops too low (note that this is not true for all cars). This causes the engine to stall and die.
Sometimes when idling, the engine will misfire caused by the engine sensors that will receive defective values and the air-fuel mixture is messed up. These issues can lead to a very uneven idle which will jump up and down causing a rough idle and in some cases, the engine may literally shut off.
Common reasons for this to happen:
Low fuel pressure, dirty or defective fuel injectors, or broken fuel pump: The fuel pump is responsible for transferring fuel from the tank to the engine.
The most common reasons a Ford Expedition 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.
Relevant Questions and Answers :
the most relevant questions and answers related to your specific issue
Why is my vehicle turning off when i drive it or when i first try turn it on in the mornings it turns off itself
ANSWER : Hello there. There could be multiple mechanical components or sensors that might be faulty that cause this issue on your Expedition. Initially, you should have a professional mechanic download any existing error codes and inspect a few possible components including the O2, crank sensor, mass air flow sensor or the idle air control actuator. It might be a good idea for you to contact one of our local professional mechanics to complete an engine shuts off while driving inspection; which will allow them to pinpoint the source of your engine shutting off problems.
Car turns off. First it would turn off in reverse and when I would stop at a red light or slow down to make a turn.
ANSWER : Hi there. For the reverse stalling condition, check the Idle Air Control Valve and see if its plugged up. If a IAC valve is plugged up, an engine will stall out when going into gear and could cause issues when slowing down. For the steering and stalling issue, check the power steering fluid and see if its low. If the fluid is full, then the pressure control valve in the power steering is not releasing causing the pump to load up making the engine stall. Try turning the vehicle with the engine running and at a stopped location.
If the engine stalls out, then its the pressure control valve, but if it does not stall out, then there could be an issue with the transmission.
If you need further assistance with your engine stalling, then seek out a professional, such as one from Your Mechanic, to help you.
Engine turned off but inside of car still on, now engine won’t turn back on.
ANSWER : Hi there. The symptoms you’re describing with your boyfriend’s 2002 Grand Cherokee appear to be related to a broken or worn out ignition switch or relay. The ignition switch on the inside of the steering column is attached to multiple electronic connections that send signals to a relay box; which in turn, sends the signal to the individual components. The issue could be related to the ignition switch, the relay, or any of the components in between. If you want to have the fault pinpointed in person, I would have this starting issue inspected by a trained professional to ensure that the correct repair is made.
car won’t start.
ANSWER : A possibility is a faulty ignition switch. If the switch opens after the car starts, the engine will shut off. But, that is just a possibility and a diagnostic would have to be performed to rule that in or out. Be sure you have a fully charged battery that passes a load test. Starters motors can display intermittent operation if they are faulty. With a fully charged battery, if the starter motor does not run that signifies an electrical problem in the starter circuit (includes the ignition switch) or a problem with the starter motor itself. If there is power to the starter motor and yet it doesn’t run, the starter is condemned and replaced. Alternatively, if there is no power to the starter, or there is a big voltage drop anywhere on the circuit to the starter, then the circuit has to be traced until the fault in the circuit is found. Notably, faults can include high resistances, due to corrosion, wire strand breaks, or loose terminals, which can only be diagnosed using a voltage drop test. Regardless of what the underlying cause of the no start condition is, if you desire that a certified mechanic resolve this promptly, please simply request a no start diagnostic and the responding mechanic will get it diagnosed and repaired for you. Please let us know if you have further concerns or questions as we are always here to help you.
When I turn my car on it barely runs for a few seconds then the engine turns off.
ANSWER : Check for diagnostic trouble codes. If no codes have been stored, you can consider the typical causes for immediate stalling which are a faulty mass airflow sensor, faulty engine coolant temperature switch/sensor (typically at cold start only), faulty camshaft or crankshaft position sensors, worn spark plugs, wires or defective ignition coil(s), inadequate fuel delivery or pressure (clogged fuel filter, injectors, faulty fuel pump or pump circuit), contaminated or old gasoline, defective throttle position sensor, faulty idle air control valve, leaks in the EGR system, intake vacuum leaks, and so forth. If you request an engine stalling diagnostic the responding certified mechanic will get this resolved for you promptly. If you have further questions or concerns, do not hesitate to re-contact YourMechanic as we are always here to help you.
steering wheel turned to the far right and locked in place while the wheel are straight. and I can’t turn the key.
ANSWER : Hi there. From the description you have provided, concerning your vehicle’s steering wheel is locked far right and key won’t turn with the front wheels in a forward default position, is somewhat confusing to me. It could be, undo pressure is being applied to the steering wheel lock. You could try, physically moving the left front tire side to side in either direction, to relieve the pressure on the steering wheel lock. It could be, the key you are using has a problem, try another key if available. It could be, the ignition lock cylinder is at fault. I recommend having your vehicle’s can’t turn the key be diagnosed and repaired by a certified technician, such as one from YourMechanic.
What would cause a creak/pop/snap type sound when turning the steering wheel at sharp turns?
ANSWER : Hello Kate. When dealing with power steering concerns always start by simply checking the level of power steering fluid. If it is not burned, low, or a bad color your issue is likely related to the suspension. The steering and suspension components both have an incredible effect on each other. You can often feel popping from the CV-joints, axle issues, ball joints, and worn bushings. You will want to raise the vehicle off of the ground to get a better look at some of these components. However, should do a visual inspection both on the ground and in the air however to compare the tires when they are under pressure and when they are "unsprung". If you do not see anything out of the normal, have someone turn the steering wheel clock to clock to attempt to recreate the popping while its raised off the ground. Only further testing will pin point the issue, but it may be suspension related instead of a power steering issue.
My headlights suddenly will not turn off
ANSWER : Hello. If the headlamps will not turn off then I check the obvious first just to make sure that the switch is not in the on position. If the switch is correct then most of the time this is caused by a failure in the control module for the lighting or a failure in the relay. i would need to check the circuit to know for sure. I have seen this vehicle need some reprogramming in the computer to be able to get the lights to work correctly, but most of the time this is a failure that requires replacement of the computer. If you want to have this looked at, consider YourMechanic, as a certified mechanic can come to you to [diagnose why the headlights will not turn off] https://www.yourmechanic.com/services/headlight-is-not-working-inspection
