As temperatures drop, your truck should be fully prepared to handle seasonal weather conditions without missing a beat. Fall is the most opportune time to get ahead of winter’s harsh demands and make sure your truck’s systems are in their best running shape. From late autumn through the coldest months, preventative cold weather truck maintenance is essential to avoiding costly breakdowns and keeping you safe on the road.
At Coopersburg & Liberty Kenworth, we help keep your Kenworth, Peterbilt, Mack, or any commercial truck, running strong year-round. From inspections to full-service maintenance, we’ve got everything you need to keep your truck ready for fall and winter. Servicing your truck includes the Cooling, Heating, and Air Systems.
Cooling System Tips
Your truck’s cooling system works harder in colder temperatures, so it’s important to thoroughly inspect its key components. Check that the fan assembly, shroud and pulley are providing proper airflow and cooling. Test the engine block heater with a continuity test to make sure it’s ready for any cold starts. Inspect the radiator for any visible damage or leaks, and make sure it’s mounted securely. Examine all hoses, especially around the surge tank and water pump, for cracks, bulges, loose or weak connections. Any signs of leaks should be addressed immediately. Coolant condition is critical this time of year. Test the coolant level, color, and freeze point. You’re aiming for protection between -25°F and -50°F. If the coolant is outside that range, it’s time for a flush and replacement. Make sure your coolant still offers solid corrosion protection. Check the supplemental coolant additive (SCA) and extended life coolant (ELC) levels to manufacturer’s specifications, depending on what type you’re using. Also, perform a pressure test to catch any hidden leaks before they become a bigger problem.
Heating System Tips
A well-functioning heating system isn’t just about staying comfortable in your cab — it’s also the key to driver safety and alertness on the road. Start by cleaning the heater screens to make sure nothing blocks or restricts airflow. Then, check that all heater and fan controls work properly in both the cab and bunk areas. Any signs of weak airflow or slow fan speeds should be addressed. Inspect the cab floor grommets and door weather-stripping for gaps or worn seals. Air leaks can let in cold drafts and make your HVAC system work harder.
Air System Tips
A reliable air system is a must during winter. Moisture can freeze inside the lines and lead to major brake issues. Begin by regularly draining your air tanks to remove any built-up condensation. If you haven’t serviced your air dryer in a while, now is the time to check or replace it. Change the cartridge at the beginning of winter and inspect the system to make sure it isn’t leaking or corroded. An underperforming air dryer is one of the top causes of frozen brake valves, so don’t skip this step.
Cold Weather Trucking Tips
As winter approaches, it’s essential to pay attention to your truck’s cooling system. Antifreeze is a key winter chemical, helping your engine maintain a safe operating temperature in extreme conditions. It also prevents the water in your engine’s cooling system from freezing, expanding, and causing costly damage. The radiator cap is just as important. It keeps the antifreeze where it belongs and maintains proper system pressure. A leaking or old cap can lead to overheating and coolant loss, so it is best to replace it if it’s a few years old.
Final Checkpoints
Finally, there are a few final items that deserve attention to ensure your truck runs trouble-free throughout the fall and winter. Replace your engine coolant if it’s out of spec or not suited for cooler weather. Inspect the air compressor, pulley, and mounting brackets for any signs of wear, leaks, or loose bolts. Cold temperatures can interfere with the electrical systems, so check all of your starter and alternator connections. Examine the drive belts for any cracks, fraying, or poor tension. Your steering gear and reservoir should be leak-free and topped off with the correct fluid. Keep an eye on the vibration damper for any signs of wobbling or wear. Lastly, clean and inspect the hood grille, bug screens, and hood brackets. These small components help with improved airflow and make a big difference when winter conditions are at their worst.
Fall and Winter Truck Maintenance
Don’t wait for cold weather to remind you about maintenance. Fall is the best time to begin preparing your truck for winter. From cooling and heating systems to air systems and key mechanical checks, proper seasonal maintenance keeps your truck running reliably and safely all season long. At Coopersburg & Liberty Kenworth, our team is ready to help you tackle every part of your cold weather truck maintenance checklist.
Schedule your Fall and Winter maintenance today at our Coopersburg Kenworth, Liberty Kenworth of South Jersey, and Liberty Kenworth of Bristol locations. For all-makes parts, service, body shop services, financing, and more, contact us today.