Cars can seem to be a bit finicky when it comes to how they operate. This is especially true for newer car models that depend more today on advanced microcomputers and processors than ever before. There are many reasons for a stalling car, but let’s take a look at the seven most common.
- Your fuel selection is important. Looking for the least expensive form of fuel for your car can sometimes lead to problems with both fuel and air sensors in your automobile. Lower-octane fuels may not perform to the standard at which some luxury cars have been produced.
- The fuel filter needs attention. Practically all cars on the road today have at least one, and sometimes two, fuel filters. These are necessary in order to keep inert matter such as dirt and other debris from entering the fuel pump. This filter needs to be replaced occasionally in order to maintain proper fuel flow.
- The spark plugs are fouled. Most spark plugs are designed to last many years and for great distances, but check with your car owner’s manual to determine when you should inspect and replace those plugs. A worn or dirty spark plug will misfire, causing rough idling of the engine and occasional stalling.
- Don’t forget the air filter. When you have the oil changed in your car, ask the mechanic to inspect the air filter. If it is too dirty, it should be replaced immediately. A clogged filter will block airflow to the engine and in some cases will cause stalling.
- Check the oxygen sensor. It is often the most-overlooked part of the car and yet it should be replaced after many years of continued use. This sensor is responsible for determining the air mixture in your engine. This helps the computer determine if the fuel mixture is too rich or too lean. Having the mixture out of range will cause the car to stall while idling and occasionally while driving.
- The battery is not charging. If there is an issue with your alternator, the battery will not charge. The fuel injectors and many other components of modern cars require electricity in which to operate. Without this essential power supply, the car will stall.
- What about all the “bells and whistles”? Your car, like many others on the road, is equipped with safety devices and many of the comforts other drivers expect while on the road. If some part of these systems sends a diagnostic warning to the computer, the car may shut off to avoid a catastrophic failure of the system later.