Problems That Cause Audi Engines to Stallby admin June 2, 2020
Audi engines are a hallmark of advanced technology and high-end luxury. The brand itself is built on performance, speed, and beauty, all without compromising on its promises of comfort and class. Audi is 88 years old this year, but even through trial and error and experience, the brand has its issues from time to time. One of the hallmarks of an engine in need of some TLC, and possibly a replacement, is a stalled engine.
Stalled Engines: What to Watch For
Your engine is said to stall when it shuts off suddenly. Depending on the underlying issue, you may first notice other symptoms,such as rattling or vibrations, or there may be no warning whatsoever.
The root cause of your engine stalling will determine how your Audi reacts when you try to restart it. Sometimes, your vehicle may stall instantly after you start it again or it may not start at all. In these cases, you’ll need to have your vehicle towed to your mechanic. Other times, your vehicle may restart immediately and run just fine, although you should still make a point to have your vehicle checked as soon as possible.
There are 3 components vital to your engine’s ability to propel your vehicle forward: an acceptable fuel-to-air ratio in your combustion engine, sufficient idling speed, and a good spark. If one of the three fails, your engine will stall – but not knowing the issue can be a problem. For all but the mechanically-savvy, it’s important to bring your vehicle to a professional Audi repair shop who can properly diagnose your engine as quickly as possible.
Causes of a Stalled Engine
Stalling is frustrating, problematic, and potentially embarrassing, not to mention dangerous if it happens in the middle of traffic. There are myriad reasons why your Audi engine might stall with the severity of the underlying issue varying from a quick fix to a totaled engine.
There are several carburetor problems that can cause a stalled engine, such as a misadjusted, sticking, or broken choke. Additionally, your engine may be experiencing a vacuum leak around the carburetor or you may have a leaking EGR valve (exhaust gas recirculation valve).
Fuel Injection Issues
If you don’t have a carburetor in your engine that means your engine is fuel-injected. Potential injection issues include faulty airflow, vacuum leaks, or oxygen sensors. Additionally, your throttle position may be incorrect or your fuel injector may be dirty or just plain faulty. If none of these are the cause, your engine may be experiencing low fuel pressure.
Fuel Pump Issues
If you have a faulty or failing fuel pump, this will lead to insufficient fuel being fed into the engine. While this is a less common issue, a faulty fuel pump can easily stall your engine.
Certain ignition problems can cause an Audi’s engine to stall. Among these are faulty ignition switches, coils, or modules, or an issue with your crank position sensor.
How to Diagnose a Stalled Engine
If you experience repeated stalls or your engine refuses to turn over again, it’s important to bring your vehicle to a qualified Audi technician for an inspection as soon as possible. Depending on other symptoms and the suspected issue, your technician may utilize a scan tool plugged into your onboard diagnostic port to pinpoint problems or perform a visual inspection.
Diagnosis and Repair of a Stalled Engine in Your Audi
Stalled engines can be dangerous even in slow traffic, as if your vehicle stops suddenly in the middle of the road, it is a hazard for fast-driving or inattentive vehicle operators. As such, it’s important to bring your vehicle in to a certified mechanic as quickly as possible.
McIlvain Motors of Chandler, Mesa, Phoenix, Scottsdale, and Tempe, AZ is here to help! With over 100 years of expert auto service under our belt and a dedicated team of certified mechanics, we can get you back on the road in no time. We specialize in German cars, and all of our mechanics have been Porsche Factory Trained to keep up with the high expectations German brands deserve.
In addition to exemplary customer service and our 2-year, 24,000-mile warranty on all service and repairs, we offer free Uber pickup and drop off, so your day doesn’t have to be stalled just because your Audi’s engine is.