5 Common Heavy-Duty Truck Repairs And How To Prevent Them

National Fleet Management, headquartered in Charlotte, North Carolina, is an industry leader in heavy-duty truck maintenance and repair. We've built our reputation on years of experience, addressing common truck issues and providing solutions to keep these robust vehicles running smoothly. This article presents five common heavy-duty truck repairs we often encounter and offers preventive measures to help you avoid these issues.

Blown Head Gasket Repairs

A blown head gasket can lead to significant engine damage and expensive repairs. It's typically caused by engine overheating, which can stem from a problem with the coolant system.

  • Prevention: The best way to prevent head gasket issues is by maintaining your coolant system. Regularly check your coolant levels, look for leaks, and ensure the radiator is functioning optimally. Regular coolant flushes and replacements can help keep your engine at the correct temperature, reducing the risk of a blown head gasket. Keeping fan clutches, water pumps, and your coolant reservoir in good shape is very important. 

Overheating Transmission Repairs

Transmission problems are another common issue with heavy-duty trucks. These issues can range from difficulty shifting gears to complete transmission failure.

  • Prevention: Routine transmission fluid changes and flushes are crucial to prevent transmission problems. The transmission fluid serves as both a lubricant and coolant for your transmission system. Over time, the fluid can degrade, losing its effectiveness. Regularly replacing the transmission fluid can help keep your transmission running smoothly and extend its life.

Frozen Brake Air Line Repairs

A frozen airline can compromise the brake system, a crucial safety component in your heavy-duty truck.

  • Prevention: Maintaining your air dryer is key to preventing moisture build-up in the air system, which can freeze in cold weather. Regular checks and servicing of your air dryer can ensure it's effectively removing moisture and keeping your airlines dry.

Diesel Fuel Injection System Repairs

Issues with the fuel injection system, such as fuel rail and injector issues, can lead to decreased fuel efficiency and engine performance.

  • Prevention: Regularly changing your fuel filters during every oil change can help prevent fuel injection system problems. A clean fuel filter ensures that your engine is receiving clean fuel, free from dirt and debris that can clog the fuel injectors. It's a simple, cost-effective step that can save you from expensive repairs down the line.

Premature Tire Replacements

Frequent tire replacements can be costly and are often due to improper alignment, which causes uneven tire wear.

  • Prevention: Keeping your heavy-duty truck properly aligned can extend the life of your tires. Regular alignment checks and adjustments can ensure that your truck's weight is evenly distributed across all tires, reducing the risk of premature tire replacements.

The Importance of Preventive Maintenance 

At National Fleet Management, we believe in a proactive approach to vehicle maintenance. By addressing these common issues early and maintaining a regular servicing schedule, you can prevent costly repairs and downtime.

National Fleet Management’s Approach to Preventive Maintenance 

Our approach includes routine inspections and maintenance schedules tailored to your heavy-duty truck's unique requirements. We conduct regular coolant system checks, transmission fluid changes, air dryer maintenance, fuel filter replacements, and alignment adjustments as part of our comprehensive service package.

Schedule an Appointment Today 

By preventing common issues before they escalate, we not only save our clients money in repairs but also ensure their vehicles remain safe and efficient on the road. After all, a well-maintained truck is a more reliable and profitable truck. At National Fleet Management, we're committed to helping you keep your truck running smoothly, mile after mile.

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