Top Causes of Audi Engine Misfire & How to Fix Them from Certified Mechanics in Apex

Audi is one of the top-selling luxury cars in the world that is loved by millennials for its performance and features. Besides that, Audi has introduced many entry-level models like Audi A3 & A4 that are very popular. Moreover, the popularity of Audi can be gauged from the number of these cars that you get to see on the road of Apex, NC.

Nevertheless, Audi also encounters a fair share of issues like other luxury cars that affects its smooth running and performance. A common issue that most Audi drivers complain about is engine misfires which can be caused due to a host of factors.

If the misfiring of the engine is not addressed immediately, then it can take a toll on the engine. Here in this article, we will discuss the top causes of engine misfires in your Audi.

Ignition Coil Failure

The ignition coil in your high-end car provides the spark plugs with the much-required charge to ignite the air/fuel mixture in the vehicle. The ignition coil in your car is connected to the battery and converts the low voltage output of the battery into high-voltage that is used by the spark plugs.

The malfunctioning of the ignition coil is found to be the leading reason behind the misfiring engine in your luxury car. Moreover, there are certain models of Audi that come equipped with separate ignition coils on every spark plug and there are others that have a single ignition coil pack & a wire is connected to each spark plug.

Now, as the system is quite complex, you should get in touch with an Audi Specialist who can use advanced diagnostic tools to determine which coil has failed and then initiate remedial measures to address the misfiring issue.

Malfunctioning Intake Manifold Gasket

The intake manifold gasket in your high-end car located between the cylinder head and the intake manifold is responsible for preventing the engine gases from leaking out or coming in contact with the coolant. Now, issues with the functioning of the intake manifold gasket can affect your vehicle in many ways.

Most of the time the misfiring of the engine of your car is caused due to bad intake manifold gasket. The failure of the intake manifold gasket lets air into the combustion chamber & this disturbs the air-fuel mixture in your vehicle leading to engine misfire issues.

In addition to this, there are many vacuum lines that connect the intake manifold gasket to the engine and a leak in any of these vacuum lines can also lead to a misfiring engine in your vehicle. The malfunctioning of the intake manifold gasket is quite common in old model Audi & replacing the intake manifold gasket is going to solve your woes.

Faulty Fuel Injector

The fuel injector in your vehicle is responsible for delivering pressurized fuel to the combustion chamber so that an optimum combustion process can take place. There are separate fuel injectors for each cylinder and if there is any kind of anomaly in the delivery of pressurized fuel to the engine by the injectors then it leads to rich or lean running of the engine causing misfiring.

Identifying and diagnosing a faulty fuel injector is very difficult and you shouldn’t attempt it by watching DIY videos on the internet. You must take your Audi to an experienced repair shop where skilled mechanics will first inspect the whole car to rule out any other issues behind the engine misfire.

If everything is functioning optimally, then the fuel injectors are inspected for damages and replaced accordingly to fix the engine misfiring issues in your car.

Bad Spark Plugs

Most of the time it is found that issues with the functioning of the spark plugs can have an adverse effect on the engine. The spark plugs wear out with repeated usage and they need to be replaced with new ones as per the owner’s manual.

The engine misfire is mostly caused due to weak spark in the spark plugs that fails to ignite the fuel in all the cylinders leading to misfiring from some cylinders of your engine. Replacing the damaged spark plugs with ones will fix your misfiring trouble.

Finally

The above-discussed factors are some of the leading causes behind the misfiring of the engine in your Audi. Now, at times it is seen that people choose to ignore the misfiring of the engine in its initial stage. Well, you mustn’t commit this mistake because it can damage your engine permanently.