Onsite Truck & Equipment Repair Blog

Top Freightliner Truck Problems & How To Avoid Them - Complete Guide


Heavy-duty Freightliner trucks seem to be enormous and vital. And while this is true, they are neither indestructible nor flawless, which is why there continue to be Freightliner truck issues. Even though maintenance and inspections considerably minimize the likelihood of the problems, they nevertheless have the potential to arise.

You've gone through a lot as a Freightliner owner to get your company off the ground. It is in your best interest to be aware of potential difficulties and to be prepared  to come up with solutions when they occur. By being aware of potential issues, you may better avoid them from happening. Here are some of the most typical issues that heavy-duty Freightliner trucks might have:

Brake problems

Brake problems may be caused by the brake pedal or the braking system. A heavy-duty Freightliner truck already weighs a lot, and when it's fully loaded with freight, the brakes are put under much more strain. Although the Freightliner truck's brakes are designed to manage heavy loads, they may cause wear and tear over time. Fluid leaks are a possibility, and the worst-case situation is brake failure.

Thanks to the independent braking system of Freightliner trucks, if one of the brakes fails, the heavy-duty truck may still be stopped by the remaining brakes. Brake issues may be prevented with adequate maintenance. Every heavy-duty Freightliner truck should have a well-thought-out brake maintenance plan.

Modern Freightliner trucks commonly encounter troubles with brake pedals or the braking system, most likely due to the strain from such heavy cargo loads and transport requirements.. If Freightliner trucks are not properly maintained, brake fluid leakage and even complete braking failure may occur. 

Problems with tires and wheels 

Wheel bearings allow the wheels to move, and if they are worn out, a powerful sound may be heard when the wheel travels. It can also cause a jerking movement at times. These are both red flags indicating the wheel bearings need to be inspected.

In all sorts of trucks, tire issues are widespread. Various circumstances might cause them to be blown out or damaged, even if they are properly inflated. Tire problems may be avoided by just examining the tires before the journey. Make sure to replace them as soon as they get worn out and have extra tires on hand. 

Engine issues

When your Freightliner truck's engine fails, it's one of the worst things that can happen. Overheating is the most prevalent engine issue, and this may be caused by a burst gasket, a fuel leak, or something as easy as not changing the oil or checking the coolant levels. Engine issues may develop over time if necessary maintenance is omitted or ignored, even if they are not immediately apparent.

Working with a diesel truck specialist and adhering to preventative maintenance schedules is the best option. Maintenance is less expensive than repairing or replacing an engine due to damage or failure.

Starter problems 

Many drivers discover that their Freightliner trucks are more prone to have trouble starting as the winter season approaches. Be sure to inspect the starting mechanism even before the cold weather arrives. Because of the cooler temperature, any problems with the ignition are likely to intensify. As a result, it must be addressed as soon as possible before it worsens.

As the weather becomes colder, it's good to check your starter mechanisms more often. During the winter, starter failure is a typical occurrence. The operator will most likely notice clear indicators of a starting problem initially, and the ignition will only grow worse as the temperature outside drops. To identify the issue, non-essential components (such as radios) should be switched off during the motor start phase.

Clutch issues

The clutch is very significant in manual transmission Freightliner trucks, and it is prone to wear and tear and should be examined regularly. Clutch difficulties may be caused by various factors, including hard driving, overloading the clutch, or oil leaks. Dumping the clutch is a bad habit because it causes the clutch to overheat and put more stress and strain on the clutch disk and driveshaft.

Apart from correcting driving habits, clutch difficulties may also be avoided by inspecting the clutch disc for leaks that might taint it. Furthermore, leaks may impact more than just the clutch; they might also affect other elements of the Freightliner truck. Eliminating any leaks can assist several aspects of your Freightliner truck.

U-joint failures 

U-joints are required for power transfer from the transmission to the differentiator. The U-joints must be greased to prevent wear and strain, and a driver may hear a clicking sound if the U-joint is deteriorating. Vibrations at more incredible speeds might also be a symptom of impending U-joint failure. If an operator notices one of these symptoms, the U-joint should be replaced as soon as possible.

Final words 

Federal safety standards require all Freightliner trucks to undergo a thorough annual examination by a licensed inspector. The inspection must follow federal requirements and be carried out by someone who has the necessary training, certificates, and experience. Make sure that you keep your eyes open to these problems and take appropriate steps to overcome them. 

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