During a winter weather inspection, which system should receive extra attention?

• A. Exhaust
• B. Cooling system
• C. Brakes
• D. Electrical system

Answer: (A)

During winter, the exhaust system needs extra attention because cold weather and heater use raise the risk of carbon monoxide entering the cab if there’s a leak. A leak can occur in rusted or cracked pipes, faulty hangers, loose clamps, or where ice and snow block the tailpipe. Inspect all parts of the exhaust system—pipes, muffler, and hangers—for cracks, holes, or corrosion, and make sure the tailpipe is clear of snow, ice, or debris and that it vents away from the cab. If you find a leak or blockage, don’t operate until it’s repaired. While brakes, electrical, and cooling are always important, winter conditions heighten the danger from exhaust leaks and CO buildup.