Diesel engines give trucks a lot of capabilities from a power and fuel-efficiency standpoint, but they can eventually run into issues. Here are some of the more common ones that would need to be addressed by an auto service shop.

Loud Noises

Even though diesel engines will make more noise than standard gasoline engines, you still don't want them making a bunch of noise. If this is happening on a regular basis, there's probably a fuel system issue that needs to be looked at by a professional shop with diesel repair experience.

They'll listen to your diesel engine run for a period of time and then make their diagnosis. It could be that the fuel injectors are dirty and thus need to be cleaned. Even if there's nothing wrong, there are still things a professional repair shop can do to lessen the noise like installing a dampening hood mat.

Glow Plugs with Excessive Wear

In order to effectively start the diesel engine in cold weather, it will rely on a component known as a glow plug. These plugs essentially provide heat for a proper startup, but they can eventually wear down over time. If you see that this has happened with your plugs, go ahead and get help from an auto service shop that accepts diesel-powered vehicles.

They can check this wear and make sure you need replacement glow plugs, as well as help you find a compatible set that fits and performs perfectly. That will ensure your diesel engine performs optimally, even in cold weather.

Black Exhaust Blowing Out Consistently

If you see that your diesel engine is creating a lot of black exhaust on a routine basis, there could be an air-fuel mixture issue. Trying to address this yourself can be quite challenging, so for the benefit of your diesel engine and the vehicle that relies on it, work with a qualified professional as soon as you can. They'll know how to properly calibrate the air-fuel mixture to where black exhaust isn't created going forward. For instance, the repair professional can put a special additive into your diesel engine to balance out these levels quickly. 

If you rely on a diesel engine to power a particular vehicle often, make sure you have serious problems addressed by those that know the inner workings of these engines. Not only will that help you get a fast repair, but it's going to increase the longevity of this important part. For more information on how to take care of your vehicle, contact a local auto shop with diesel engines such as a Cummins 6.7 engine.