Navigating tough terrains and long distances can cause wear and tear on your semitruck’s vital components. Especially in high temperatures and severe weather conditions, it’s important for trucks to have functioning air systems. Before setting off on your next delivery, be mindful of these signs your semitruck air system needs troubleshooting.
Reduced Braking Power
If you feel your brakes lack the usual stopping power or take more time to engage, your air system may need repairs. Since semitrucks rely on air systems for braking, any dysfunction can pose serious safety risks. Check for leaks in the air line or damaged brake chambers as you schedule maintenance on the vehicle.
Unusual Air Pressure Fluctuations
Your air gauge should consistently display normal operating pressures, usually between 100–120 PSI. If you notice frequent or sudden fluctuations, it could be due to air leaks, blockages, or an issue with the air compressor. Monitor your system routinely as diagnosing this early can prevent costly repairs.
Loud or Excessive Air Noises
Hissing, whistling, or other excessive noises during operation signal possible leaks in the line or fittings. These noises often mean your system is struggling to maintain pressure, reducing overall efficiency and performance. Inspect all connections and fittings for wear or damage before setting off on your next long journey.
Moisture in the Air System
Excessive moisture buildup within your air tanks is a possible sign that your semitruck’s air system needs troubleshooting. A faulty air dryer might allow water and oil vapor to mix, which can damage your brakes and other air system components. Regularly draining your tanks and maintaining the air dryer can prevent long-term issues.
Frequent Compressor Cycling
If your compressor is constantly cycling on and off, this could indicate pressure-related issues. This might be due to leaks or a misaligned governor setting. Check your solenoid valve to determine if the system has proper airflow regulation to prevent unnecessary strain on the compressor.
Decreased Vehicle Performance
Your semitruck’s performance will suffer when the air system isn’t working efficiently. Strain on the air system may result in overburdened engines and components. Regularly servicing your air system can improve fuel efficiency and maintain optimal performance during long hauls.
Spotting the signs your semitruck air system needs troubleshooting early will protect your safety and prevent costly breakdowns, but not all signs are clear. The best way to mitigate damage is by scheduling professional maintenance on your semitruck. Keep your air system in check, and prepare your rig to handle any road ahead.
