5 tips to prepare your truck for winter

Cold weather can make a demanding job even tougher on your truck. Freezing temperatures, moisture, ice and deteriorating road conditions can affect components throughout the vehicle, from brakes and air systems to the driveline and suspension.

A winter maintenance plan can help fleets and drivers identify potential issues before they result in downtime. Start by reviewing service needs before severe weather arrives, then make thorough pre-trip inspections part of the daily routine.

Here are five areas to focus on when preparing your truck for winter:

1. Inspect brakes and air systems

Your truck’s braking system needs attention throughout the year, but winter brings added challenges. Moisture in air lines can freeze, while worn brake components may be exposed to snow, ice and road debris.

Before winter conditions arrive, have a qualified technician inspect the braking and air systems according to the vehicle and component manufacturers’ recommendations. Key areas include:

• Air disc brakes: Perform a wheels-on inspection to check brake pads, rotors and calipers for wear or damage. If the brake pads are 75% worn, have a qualified technician perform a wheels-off inspection to determine whether replacement is needed. Plan ahead for replacement parts that fit your equipment. 
• Brake shoes and drums: Inspect components for wear and other issues. Moisture can freeze and cause trailer brake shoes to stick to drums.
• Air systems: Watch for signs of freezing in air lines or excessive air purging. Check air dryer cartridge performance and replace the cartridge when required.
• Air brake components: Inspect components such as automatic slack adjusters, S-cams and associated hardware. Make sure components are properly lubricated and within the manufacturer’s specified tolerances.

If you suspect a frozen or malfunctioning brake, follow your fleet’s procedures and the manufacturer’s guidance before attempting to move the vehicle.

2. Check tires before hitting the road

Properly inflated tires are an important part of winter readiness. Cold temperatures can affect tire pressure, while ice and road debris can damage parts of a trailer tire inflation system.

Before each trip, inspect the tires and check inflation according to the vehicle and tire manufacturers’ recommendations. On trailers equipped with a tire inflation system, such as the Meritor Tire Inflation System (MTIS), also check for air leaks, damaged or disconnected air lines, hoses and related components.

What to check and look for:

• Tire inflation: Pressure appropriate for the tire, load and application
• Tire condition: Visible damage, excessive wear or other issues requiring attention
• Inflation system air lines and hoses: Damage or disconnections caused by ice or road debris
• Thru-tees and related components: Visible damage that may require repair

3. Watch for driveline, drive axle, and clutch warning signs

Winter roads can place major demands on drivetrain components. Extreme cold can create shock loads that contribute to damage such as twisted driveline tubing, broken welds or fractured splines. Changes in traction can also increase the risk of wheel spinouts.

When one or both wheels on an axle lose traction and spin while wheels on the other axle are stationary or moving slowly, a spinout can contribute to differential and carrier damage.

Drivers should pay attention to changes in how the truck sounds and feels, including:

• Clanking or squeaking
• Unusual vibration
• Jerkiness during operation
• Other new or abnormal noises

These symptoms can have several causes, including issues with U-joints, center bearings or yokes. Report them promptly so a qualified technician can inspect the vehicle and identify the cause. 

Potholes can also affect clutch adjustment and contribute to reduced clutch life or an inoperable clutch. Include the clutch in your inspection and maintenance plan and report changes in clutch operation for further evaluation.

4. Inspect steering and suspension components

Potholes and deteriorated winter roads can affect vehicle control and place added stress on steering and suspension components. An impact that seems minor from the cab may warrant a closer look during the next inspection.

Have a qualified technician check alignment and inspect components such as king pins, shocks and suspension parts, particularly after a significant pothole impact or when the truck’s handling changes. Proper maintenance helps keep the tires in contact with the road and supports vehicle control.

5. Make winter pre-trip inspections a habit

A consistent pre-trip routine helps drivers catch visible issues and report changes before a truck leaves the yard. Follow your fleet’s inspection procedures and applicable requirements, with added attention to winter conditions.

A practical routine includes:

• Walk around the truck and trailer. Look for visible damage, leaks, ice buildup or components that appear loose or out of place.
• Check tires and inflation components. Look for damage and verify tire pressure as required.
• Pay attention to the brake and air systems. Report signs of air leaks, freezing, unusual purging or brake concerns.
• Look and listen for changes. Note unusual driveline noises, vibration, jerkiness or changes in steering and clutch operation.
• Address concerns before departure. Have a qualified technician investigate issues and perform any needed lubrication, adjustment or repair using the appropriate service instructions.

Plan now to help protect uptime

Winter readiness starts before the first major storm. Understanding common cold-weather component issues, completing preventive maintenance and planning for replacement parts can help fleets prepare for changing conditions.

Combined with consistent pre-trip inspections and prompt attention to developing issues, that preparation can help keep trucks on the road throughout the winter season.