Car cuts out 2004 Ford Fiesta

Hiya, I have a 04 Ford fiesta 1.2 and it's started cutting out when I start up. If I keep my foot on the pedal it's fine until I try to drive then the revs just drop and it cuts out. Sometimes it drops, struggles then starts again. Once warmed up it seems to run better but not much. Could it be the air flow meter? I did let it run really low on fuel, could it be that I've dragged muck through the engine? If I get it plugged in will these faults show? Any help very much appreciated, thanks.

My car has 105000 miles.
My car has a manual transmission.

Experienced mechanics share their insights in answering this question :
Hello – there are several possible sources of your stalling issue – bad idle air control valve, dirty throttle body, leaking injectors, etc. Yes, it would also be a good first step to check for problem codes, even if the Check Engine light is not illuminated. I would recommend an engine inspection by a mobile, professional mechanic, such as one from YourMechanic, who will come to your location, diagnose this problem, give you an accurate assessment of damage and cost estimate for repairs.

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.

Common reasons for this to happen:

An issue with the mass airflow sensor may manifest itself when a car starts and then stalls soon after starting. Fuel Pump Relay: The fuel pump relay functions much like a fuse for an electric fuel pump. The fuel pump relay engages as the vehicle is started and starts the fuel pump.

If the engine cranks over but won`t start, it`s possible that fuel is not getting to the engine. There are a few culprits that could be causing this problem in your fuel system – but mainly you`ll be looking at the fuel injectors and the fuel pump.
There are three major causes for a stalled engine: A lack of fuel, a lack of air flow and improper ignition. Running out of fuel is one of the most common causes of engine stalling, but dirty fuel injectors or a plugged fuel filter can also be the culprit. Your engine needs air to run properly as well.
Problem: Clutches are renowned as a part prone to wear and tear regardless of the make or model. Ford Fiesta`s, including Zetec models, are far from immune to clutch problems. A particularly common problem with Ford Fiesta hydraulic clutches is caused by the cylinder rod becoming disconnected from the clutch pedal.
When your vehicle splutters and eventually stalls it could be a sign that your car needs new spark plugs. The spark plugs, while small, are a critical part of your engine and are what “spark” air and fuel mixture in the engine sending power through your vehicle.
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.
The most common reasons a Ford F-150 won`t start are a dead battery, an alternator problem, or failed starter.
Small and easy to maneuver. The Fiesta is a really fun car to drive because it`s so small and easy to maneuver. There`s a reason it`s a really popular learner car, and you`ll very often see a Ford Fiesta with L plates on the front and rear.
Some of the most common sensors that lead to engine stalling include the mass airflow sensor (MAF), engine coolant temperature sensor (ECT) and manifold absolute pressure sesnsor (MAP). The idle air control valve (IAC) and exhaust gas recirculation valve (EGR) are also well known for causing engine stalling.
Number 1 – Bad Battery

A bad battery is one of the most common reasons that cars stall. Most people think that if a battery is dead, the car won`t start. Truth is, if your battery is going bad,your car will run but you`re at risk of stalling 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.
Faulty spark plugs can cause the car to exhibit starting troubles. Worn out plugs does not produce sufficient sparks, which is needed for starting the engine. This results in the engine to stall and fail to start quickly.
If your car`s transmission has an internal pressure problem, it can cause the torque converter to lock up, causing your car to stall. Though not as often the culprit of engine stalling than others, the transmission shouldn`t be overlooked when searching for the root cause.
The Fiesta is a very good car. Highlights are that it is superb to drive, has a great driving position and comes with plenty of standard kit. There`s also numerous trim levels to choose from.
As of February 2023, the Ford Fiesta holds an Expert Rating of 77% based on 49 published reviews.
If the torque converter is broken, or if there is a low fluid level in the transmission, the converter will not do its job, and the car will be unable to maintain power at low speeds, which causes the engine to shut off.
It may have been damaged by overheating or by dirty automatic transmission fluid. They can also be damaged if the engine`s computers fail and attempt to engage the transmission at too low or too high an RPM level. This RPM level is known as the engine`s “stall speed” and can be tested by any certified mechanic.
Why won`t my car start but the battery is good? 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.
The crankshaft position sensor monitors the position and speed of the crankshaft and other parameters that play an important role when starting the engine. If the crankshaft position sensor is having a problem, the vehicle may have intermittent starting issues or not start at all.
It may have been damaged by overheating or by dirty automatic transmission fluid. They can also be damaged if the engine`s computers fail and attempt to engage the transmission at too low or too high an RPM level. This RPM level is known as the engine`s “stall speed” and can be tested by any certified mechanic.
Manual cars stall when taking off because the drivers releases the clutch too fast (dumping the clutch) and the engine cannot meet the demand and stalls. 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.
Stalling can be dangerous, especially in heavy traffic. A car fitted with an automatic transmission could also have its engine stalled when the vehicle is travelling in the opposite direction to the selected gear.

Relevant Questions and Answers :

the most relevant questions and answers related to your specific issue

car surges when idle or in park. rpm bounce. car has cut off, but cuts back on.
ANSWER : It sounds like your idle air control valve could be failing. The idle air control valve is responsible for maintaining the proper amount of air into the intake while the vehicle is slowing down to a stop and resuming idle speed. When this valve fails, it can cause the exact symptoms that you described. I would recommend having the idle air control valve inspected by a qualified professional to determine if it is performing properly. If the IAC valve has failed, I would recommend having it replaced at your earliest opportunity.

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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

Read Full Q/A … : Car cuts out 2004 Ford Fiesta

Car cuts out 2004 Ford Fiesta
ANSWER : Hello – there are several possible sources of your stalling issue – bad idle air control valve, dirty throttle body, leaking injectors, etc. Yes, it would also be a good first step to check for problem codes, even if the Check Engine light is not illuminated. I would recommend an engine inspection by a mobile, professional mechanic, such as one from YourMechanic, who will come to your location, diagnose this problem, give you an accurate assessment of damage and cost estimate for repairs.

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Whilst driving the car will cut out. In the begining it would start immediatetly now if it cuts out it doesnt want to start
ANSWER : Hello. I would need to know the model of your Toyota to be able to give you the best information. From what you are telling me though it sounds like the crank sensor harness may be damaged or that one of the main grounds may not have been properly installed when the transmission was put back in. Both of these will cause this to occur.

I usually install a scan tool and watch the crank signal to see if it changes when the stalling occurs. If it does then either the sensor or the harness has a problem. If the reading is fine then the grounds need to be checked for a loose connections.

If you need to have this repaired, consider YourMechanic, as a certified mechanic can come to your home or office to diagnose your starting issue firsthand and repair this.

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Replaced alternator on car 2 times each time shows it’s charging 14v let car run for a little bit then test drive and car voltage
ANSWER : There are reports that the replacement alternators will not communicate with the engine computer and will not charge correctly. I recommend using only the manufacturer approved replacement part. It can be new or remanufactured but approved for use in the vehicle. Some lower cost alternators on the aftermarket will have charging problems since they will not communicate with the ECM on the vehicle and will stop charging.

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Oil leaking from under car and "remote control car" sound when car is first started for a few minutes until it warm up.
ANSWER : Hello,
There are a number of things that could make an engine noisy when starting up. Depending on the specific type of sound you are referring to, this will determine how to properly diagnose. If there is a bit of a hissing sound, this may be a sign of a vacuum leak. If this is more of a shrieking sound, this may be a sign of a worn out or out of adjustment serpentine belt. If there is a bit of a howling or growling sound, this may be a sign of a worn out or low on fluid power steering pump. A rattling or pinging sound may be caused by an ignition problem. An engine can ping (or knock) due to an improper combustion process. A "spark knock" is the result of combustion occurring too early. Early combustion can occur from carbon buildup inside the combustion chamber, a lean air/fuel mixture, and advanced ignition timing (spark plug firing too soon). A clattering type sound may be a result of improper lubrication in the valve train which could be a more serious problem and should be addressed as soon as possible. I would suggest having an expert from YourMechanic come to your location to diagnose and inspect your vehicle to ensure everything is in proper working order.

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My car cut off on the highway and wont start back up.
ANSWER : Trouble code P0443 is for an Evaporative Purge Control Circuit. This system is responsible for carrying fuel vapors from the fuel tank to be burned off during normal driving. This would not cause the vehicle to stall or not crank.

Also, if the vehicle was running then stalled out, the starter would not be at fault for that. The starter will not cause the vehicle to stall.

The most cost-effective way to start is to have a technician, like one from YourMechanic, diagnose the no start condition before replacing any parts. Most auto parts sources will not accept returns on electrical or electronic components.

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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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