Diesel engines remain well-known for being powerful workhorses. According to the EIA, January 6, 1930, marks the date the first trip by a diesel engine vehicle was completed. These vehicles remain potent machines to this day, but like everything else, run into occasional problems. An easy way to tell what the problem is with your diesel vehicle is by looking at the smoke.

Black Smoke

Black smoke indicates a problem with the fuel system. Either there's too much fuel or there needs to be more air in the system. Standard fuel system issues, like clogged fuel filters or injectors, can cause black smoke from a diesel engine. Other problems, like an EGR system failure, can also cause this. It's best to head to a mechanic, who can help you determine what the problem is.

Light Gray or White

Light gray or white smoke indicates water vapor or unburned fuel in the system. Several things can cause this problem, such as a cold engine. If this is the case, the problem will disappear as it warms up. An injection system issue or the engine overheating can also cause this. Both situations call for taking the vehicle straight to a diesel repair shop.

Blue Smoke

The blue smoke will not be cyan blue. Instead, it will appear to be more of a blue-gray color or a gray color with a bluish tint. This color of smoke indicates that oil is burning on the engine. If you recently put oil in your car and spilled some, this could be the reason. Other common causes include worn-out piston rings, worn-out seals, or accidentally putting too much oil in the engine.

What to Do

After you see these colors of smoke coming from your diesel engine, take a deep breath and consider minor causes. For example, if the engine is cold, give it plenty of time to warm up. Then, check to see if there is still white smoke. Consider whether you just had an oil change if there is blue smoke. However, if no minor issues could be the culprit, it's time to head to a diesel repair shop.

.We are an experienced diesel repair shop, and we can help you find out what's wrong with the engine. At Twin Points Diesel & Auto, we are proud to offer discounts for first responders and military to go along with our great warranties and customer service for everyone. Contact us for more information today.