Do you experienced engine backfire when you are cruising along a busy highway and hears a loud bang from your exhaust? That’s what usually happens to older cars where an explosion can occur in the air intake or the exhaust system instead of the combustion chamber. But what are really the causes of an engine backfiring?
First of all, we need to determine if it is backfiring from the exhaust or just back up from the carburetor (also called carb by some mechanics). In automotive terms, an exhaust backfire is referred to as “backfiring” while backfiring from the carb are termed “coughing” or “spitting”. We will explain here some of the most well-known causes of engine backfire while you also learn more about “coughing”.
What is engine backfire?
As we have stated above, engine backfire is a loud annoying sound that you may hear from the exhaust system which occurs mainly when you are accelerating. This could also happen even when your engine is in idle and you suddenly step on the gas for revving up. Automobile experts believed that backfiring is most likely to happen to older car models any time with several hundred thousands of mileage.
The backfiring through the carburetor (the coughing or spitting), on the other hand, frequently happens in the morning when the carb’s air/fuel mixture is too thin. However, this may not last long, a good one blast on that moment is all that it takes when the engine is totally warmed up. Additionally, the coughing may also be because of the accelerator pump of the carburetor not providing enough fuel prior to the main stream of gas gets working.
The carb might also be choked up or out of adjustment which is not impossible. Considering that as part of the fuel injection system, the carb is also subjected to stress, heat, and another form of tear and wear.
Here are some causes of backfiring engines
An engine backfiring also has something to tell about the state of your car. This article will at least help you determine the causes of engine backfire so you may know what to do to fix it and save you some money repairing your car yourself. Although you may let your most trusted mechanic do the job if symptoms persist, you may be able to know what’s happening inside your car.
This could also be a wake-up call to have your car thoroughly maintained when its mileage is going further and further.
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