The only way I can think of that the air compressor would be able to shut the engine down is if the pulley on the compressor locked up causing the belt to break. The belt breaking is what would cause the engine to eventually shut down. I would recommend having your vehicle inspected by a qualified professional to determine the exact cause of this issue. This may include a fuel pressure test, alternator/battery test, as well as a good visual inspection.
How to Identify and Fix Common car Problems ?
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If the engine stalls as you are driving, it can put you and your passengers in danger. Engine stalling can be unexpected and happen at any time if the warning signs of trouble are left unchecked. The reasons behind engine stalling include a bad battery, moisture in the gas, and other electrical issues.
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 an Audi A4 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.
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.
Immediately turn on the vehicle`s hazard warning lights. They`re the universal sign of distress. If you`re unable to pull completely over onto the shoulder, or if the car is stalled in a traffic lane, do not attempt to get out of the car! Similarly, never try to cross a highway on foot.
Common culprits include a faulty fuel pump or fuel pump relay. A clogged fuel filter or bad fuel pressure regulator is also common on return-type fuel systems. Another often overlooked problem is the vehicle simply being out of fuel. Sometimes the fuel gauge breaks or is inaccurate.
Auto Start/Stop Technology automatically shuts off the engine when the vehicle comes to a full stop and idles for more than a few seconds. Once the driver puts pressure on the accelerator, then the engine turns back on.
It is commonly applied to the phenomenon whereby an engine abruptly ceases operating and stops turning. It might be due to not getting enough air, energy, fuel, or electric spark, fuel starvation, a mechanical failure, or in response to a sudden increase in engine load.
3. Fuel System Problems. If you`ve ever run out of gas, you know from experience just how quickly a lack of fuel can cause your car to stall. An empty gas tank is certainly one way that your engine might fail to get fuel, especially if you have a gas leak that`s making you lose fuel faster than expected.
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.
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.
Select first gear. Gently put pressure on the accelerator until revs reach around 1500. Slowly lift pressure from the clutch pedal until you find the biting point. When you are ready to release the handbrake, continue slowly lifting the clutch pedal and putting pressure on the accelerator.
So the auto-start-stop system can be used without any concerns in modern turbo engines, the manufacturers wouldn`t have put it in if there was any.
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.
When the EGR valve is clogged or dirty, as they are prone to, it may not function properly causing the engine idle rough, stall at idle speeds, cause the car to get poor fuel mileage, or emit a strong smell of fuel due to excess hydrocarbons which also results in failing emissions tests.
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.
With the fuel pressure gauge attached, start the engine and let it idle. Disconnect the vacuum hose from the pressure regulator; the pressure should drop approximately 8 to 10 PSI. If it does not, suspect a problem with the regulator or its` vacuum supply.