Top 5 Heavy Duty Diesel Truck Engine Problems & How to Avoid Them

Heavy-duty diesel trucks are a vital part of our transportation infrastructure, but like any machine, they are prone to experiencing problems. One of the most common issues with these vehicles is engine failure, which can be costly to repair and disrupt the flow of goods and materials. In this article, we will explore some of the top heavy-duty truck engine problems and how to avoid them. By understanding the causes and preventative measures for these issues, truck owners and operators can extend the life of their engines and minimize downtime.

Forgetting to replace the fuel filter 

Any diesel engine's lifetime and effective operation depend heavily on regular fuel filter replacements. Diesel fuel must be thoroughly filtered and cleaned before being injected via the different systems in your engine. Your diesel engine's fuel filters will progressively accumulate dirt, sludge, and debris as you drive. Every time the fuel filter becomes clogged, it must be replaced to avoid engine damage. 

Ignoring air filter replacement 

Another element that must be replaced regularly is the air filter for your diesel engine. The air filter may clog up with various debris and deposits, much as the fuel filter can. Your diesel engine's turbo system, pistons, and valves will have problems operating properly without enough airflow. Your diesel engine technician will be able to quickly change your air filter and this can be checked during your regular preventive maintenance service. 

Waiting too long to change your oil 

It would help if you sat down with your technician to develop an oil change maintenance program for your truck when you first buy a commercial vehicle with a diesel engine. Adhering to this schedule may prevent your engine from overheating or suffering other damages. Severe engine damage may result if you put off getting your oil changed for too long. 

Servicing your differential

All trucks come with a rear differential as standard equipment. However, certain variants also provide front differentials as an option. It lets your vehicle go forward and backward by distributing the driveshaft's rotating force to the wheels. A differential overhaul might include anything from bearing repair to a brand-new carrier assembly or case. You should budget at least $1,000 for the repair with the chance of more expenses. 

Transmission difficulties 

The transmission is responsible for transferring the power generated by the engine to the wheels, allowing the truck to move. If the transmission is not functioning properly, the truck will not be able to move and will be useless for transporting goods.

A malfunctioning transmission can cause damage to other components of the truck, leading to further repairs and expenses. Proper maintenance of the transmission includes regularly checking and replacing the transmission fluid, as well as identifying and repairing any potential issues before they become major problems. Regular maintenance is essential for the truck to operate safely and efficiently, as well as to prevent costly repairs and downtime. 

Final words 

While diesel engines tend to be more cost-effective in terms of fuel efficiency, they may require more maintenance and repairs, which can be costly. It's important to properly care for your diesel vehicle to prevent any minor issues from turning into expensive problems. Even with newer trucks, which have seen a decrease in maintenance costs in recent years, owning a heavy-duty diesel truck can still be expensive. 

Semi Truck Repair & Diesel Services in Denver, CO & Kalispell, MT

At Iron Buffalo, we provide expert semi truck and equipment repair, fleet maintenance, and specialty diesel services to keep your vehicles performing at their best.From semi-truck repair and hydraulic cylinder services to DOT inspections, mobile truck repair, and truck-mounted crane maintenance, our certified technicians deliver reliable solutions tailored to your needs. Whether you need routine preventive maintenance or complex engine diagnostics, our Denver, CO, and Kalispell, MT locations are equipped to handle the job. Contact us to schedule service and keep your semi trucks, trailers, and heavy equipment running strong.

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At Iron Buffalo, we provide expert heavy-duty truck and equipment repair, fleet maintenance, and specialty diesel services to keep your vehicles performing at their best.From semi-truck repair and hydraulic cylinder services to DOT inspections, mobile truck repair, and truck-mounted crane maintenance, our certified technicians deliver reliable solutions tailored to your needs. Whether you need routine preventive maintenance or complex engine diagnostics, our Denver, CO, and Kalispell, MT locations are equipped to handle the job. Contact us to schedule service and keep your trucks, trailers, and heavy equipment running strong.

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"I highly recommend this shop. I had luke a technician there do some work on my truck after a ford dealership took 6 days and failed to acknowledge my warranty on 3 leaking oil spots on my truck.Once the dealership screwed me over I took my truck here. Luke was very impressive, fast and communicative. He provided me photos. He kept me updated on everything he did. I still have a warranty through ford but apparently it’s useless. I don’t think I’ll ever go back to them considering how they treated me. Luke is a solid technician who is very skilled. I can’t recommend him enough. Thank you."
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"Our truck broke down just as we were getting into Denver.  It was a major repair and they accomplished it quickly and we were back in our truck. Everyone there was very professional and nice to work with. The unhappy news of a major repair was actually a good experience. Definitely recommend Iron Buffalo."
Kelly
"I’m glad I went to this shop. I was so worried it would be another back door mechanic wanting to swindle me. It was anything but. Shannon was super kind and went way out of his way getting me in right away. And Steve was a professional from start to finish in assisting with the work being done. I’m really appreciative and would 100% use this shop again."
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"Steven Riddle is the best service writer if ever dealt with. He is very knowledgeable, I called with starting issues. With in 1hour try had my truck towed in. That day they had it diagnosed then next day they found the parts. Great job, I will be using in the future. Thanks a lot."
Mike
"Kanisha was great, I had been trying to get my small hydraulic cylinder repaired for quite some time and she was the first person that said "YES" she was honest about needing to look first.  She was willing to listen and explained the process.  When I came in she was polite and professional. She communicated like she said she would and got it taken car of!  I'll recommend Kanisha and Iron Buffalo!"
Lance
"I'm very happy with the service I received from Iron Buffalo Holdings I highly recommend this shop. I got an Inspection & a DYNO done on my Semi Truck.  Canesha was prompt and courteous."
Miko
"Had a break down with the ol’ Pete they picked up and were available l. They aren’t the cheapest but heck you get what you pay for. If you want your rig or RV fixed so you can head one down the road these guys are nice and they can almost always get done in a day if you need it."
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