Updated: Oct 19
One of the most important things to prevent a truck breakdown is preventative maintenance. This is especially true right now with the higher costs and lower rates overall in the industry.
If your truck were to break down, you may not be able to cover the repair, the fixed costs when you are down, and your home bills while not generating revenue. By staying on top of preventative maintenance you can reduce the likelihood of a breakdown and the cost of a repair if it does happen.
Here are five tips that will help you avoid a truck breakdown, which will help to keep your truck — and your business — up and running for the long haul.
Check your tires
Tire problems account for 25% or more of all truck breakdowns. Prevent these problems with pre-trip inspections of your:
Underinflated tires (more prone to blowouts) and overinflated tires (poor handling) both undermine fuel economy and tire life. Your owner’s manual lists the correct pressure for your specific tires. Trucks made since 2003 display this information on a placard in the driver’s side doorjamb. Remember, truck tires lose about 1 psi of pressure each month. Seasonal temperature changes take an additional 1 psi for every 10 degrees in air temperature.
Damaged treads, cracks, and bald spots are major warning signs. The Federal Motor Carrier Safety Administration (FMCSA) says minimum tread depth for a steer tire is 4/32 of an inch. The Commercial Vehicle Safety Alliance (CVSA) goes further, saying that if tread depth is less than 2/32 of an inch, the truck is taken out of service pending tire replacement.
Make sure your brakes are in tip-top shape
The relentless heat, pressure, and friction absorbed by brakes make them the second culprit for a truck breakdown. Beware of these six brake system “enemies”:
Water and contamination in the air supply and control system
Oil passing from the compressor
External contamination and corrosion
Air pressure leakage
Brake system pressure and timing imbalance
Reduced foundation brake performance
Not comfortable or confident in monitoring brakes? Take it to a shop. Nobody’s expecting you to be a mechanic — if any maintenance task seems beyond your comfort level, always employ help.
Monitor your electrical system
Trucks draw serious power. A poorly performing electrical system kills performance and can harm other components, leading to costly repairs. Keep an eye on:
Make sure yours is in good condition, has the manufacturer’s recommended capacity, and is fully charged at all times. Defective batteries can damage vital engine parts, or just leave you stranded in the dark.
Wires and Cables
Keep battery cables and wiring connections securely fastened and corrosion-free, helping to prevent shorts, faulty lights, and even major system failures.
Maintain proper oil and engine coolant
There’s no better way to blow your truck’s engine than to slack on properly maintaining the oil and coolant systems. Keep your truck’s maintenance records handy to know when these fluids were checked and serviced. Then, stick to the Original Equipment Manufacturer (OEM) recommended maintenance intervals. A couple of things to keep in mind:
At major oil change intervals (every 10,000 miles), work with a service center, especially once your used truck has logged 300,000 miles. Pros can give you an analysis of how your particular engine may be burning oil, breaking down its viscosity, or operating outside of optimal OEM parameters.
Stick to OEM recommendations and go to the pros for major intervals. Take note of what coolant type your engine requires (for example, Extended Life Coolant or conventional coolant). It’s also fairly easy to do a visual inspection. Obtain a coolant sample and inspect it for clarity, color, and debris. Low-cost test strips can indicate antifreeze concentration and additive levels.
Know when it’s time to trade up
Even the best-maintained used truck will eventually break down. That’s when an owner-operator has to choose between preventive maintenance vs. replacement/upgrade.
Consider a new purchase when the principal, interest, maintenance, and operating costs of an old vehicle are higher than the comparable costs attached to a new vehicle. Detailed service records—including costs—are the best foundation for doing repair vs. upgrade math.
It's important to take the necessary steps to avoid or mitigate any maintenance issues that may arise. It cannot be stressed enough that being unable to operate right now due to maintenance issues is detrimental, not just because of the expense of repairs, but also because of the loss of income during a down market.