The two most important aspects to a truck are that it stops and it starts. When doing preventative maintenance it is particularly crucial to pay attention to the brake system and the electrical system. During preventative maintenance, if the technician spots water in the brake system, then the dryer is not working and can cause a multitude of other problems to ensue. This can cause freeze-ups during the winter which can cause costly repairs. To ensure that your electrical system is working properly have your technician look for loose or corroded connections. By allowing your technician to inspect your battery and electrical system, you can prevent the situation of not being able to crank your rig on a cold, winter morning.
Drivers aren’t dealing with diesel engines of the past. Today’s diesel engine has high pressures and tight tolerances which makes keeping the quality of fuel in your fuel system high. To keep your system in check, your technician should change your fuel filter any time a performance problem appears. Some fuels on the market have a tendency to grow microorganisms and if left untreated it can cause trouble in your fuel system. If you see something that looks black and slimy, make sure to get your fuel system checked so you can continue running properly.
If your wheel seal is leaking, it will not only cause your brakes shoes to be soaked in oil, but could also cause bearing failure. This could lead to your wheels being separated from your vehicle while on the road. When tire failures occur, it is likely due to a lack in air. During your preventative maintenance check, you should check air pressure, tread conditions, and wear patterns to avoid problems associated with tires.
It will only cost you $1 if your technician finds a problem during your routine maintenance check and is able to solve it right away. If you choose to defer the maintenance, it will cost you $10. But if you choose to wait for the problem to cause a breakdown while you are en route, it will cost you $100.
Source: Roadking