Components

When and how to replace leaf springs

Leaf springs may often be overlooked in visual inspections, experts say. Here's how to know when you should be looking for a new one.

March 6, 2023

A leaf spring installed on a truck.

TMC takes up aftermarket brake linings

The panel says OEM brake linings go through rigorous tests before being spec'd into new equipment. Aftermarket products do not. "This is significant problem," Jim Clark says. "Something is wrong here that we need to -- and I think we can -- address."

March 1, 2023

A group of men on a stage talking about brake linings.

What causes brake imbalance and how can you prevent it?

A balanced brake system is when the entire brake system, from front to back, (including the tractor and trailer) react at the correct time to produce equal timing and brake pressure.

March 1, 2023

trailer tires rotating

Nontraditional truck parts-sourcing strategies on the rise

Need a DEF quality sensor and you can't find it? How's a DEF tank somebody decided to "delete" sound for a quick and inexpensive solution? In Part 2 of this parts-purchase series, find more unique approaches as owners have adapted to new realities.

February 8, 2023

Fleet repair shops can help improve fuel efficiency

A fleet's service shop can play a key role in improving fuel economy by focusing on tire pressure, proper engine parameter settings and oil drain intervals.

February 2, 2023

man changing a trailer tire

Troubleshooting brake imbalance

A balanced brake system is one in which all the vehicle’s brakes apply and release at about the same time, with each brake developing the appropriate braking force for its respective load.

February 1, 2023

blue semi-truck being flipped

Cummins offers update on Meritor integration

During Meritor’s annual press luncheon at HDAW, Cummins-Meritor executives Alan Rabadi and Joe Mejaly were excited to unveil the future of Meritor, and how the integration is progressing. The mood was positive.

January 27, 2023

Cummins-Meritor better together slide

Carriers talk inventory, allocation frustration during Aftermarket Dialogue

Customers took center stage for a panel discussion to close out Heavy Duty Aftermarket Dialogue Monday in Grapevine, Texas.

January 17, 2023

Trio of white trucks on highway

Step-by-step air brake inspection

If you are inspecting brakes, you should become familiar with federal and state periodic inspection requirements because anyone performing required periodic inspections must meet specific criteria in terms of experience and training.

January 4, 2023

transervice technician

Air brake system anatomy

Three basic systems of air brakes you should be familiar with before attempting maintenance or replacement work.

December 7, 2022

With temps falling, it's time for a coolant checkup

There are more than a handful of ways to test a coolant, but two methods are more reliable than many of the others.

November 24, 2022

truck radiator and antifreeze

CVSA announces 2023 enforcement blitz dates

CVSA plans four scheduled enforcement campaigns this year, and the first starts in May.

November 2, 2022

trucks being scaled

Engine brakes are changing to meet needs of wide variety of engine types

“As manufacturers work on ways to comply with stricter emissions standards, especially those focusing on CO2 and NOx, suppliers need to develop products that are compatible with the new vehicles,” says Jacobs Vehicle Systems' Robb Janak.

November 2, 2022

Jacobs Vehicle Systems' High Power Density technology

Tips for spec’ing and maintaining automatic brake adjustors

Guidelines gleaned from fleet managers and field service representatives can help make better-informed ABA maintenance and purchasing decisions.

November 2, 2022

EV range extended with low rolling resistance tires

Tire experts say to shop for low rolling resistance tires to add range to electric vehicles and to look for wear resistance performance characteristics since EVs wear out tires faster than internal combustion vehicles.

October 31, 2022

Goodyear endurance rsa 17.5 ult tire display

Recovering flooded vehicles requires careful service and follow-up

Hurricane Ian flooded plenty of vehicles, trucks among them. Some will be scrapped while others can be restored to road-worthy status after taking diligent steps to ensure water intrusion has been thoroughly addressed.

October 10, 2022

Floods, particularly saltwater floods, can leave metal parts especially vulnerable to corrosion. 'I would seriously think about undercoating that body and frame. Cleaning and undercoating it. That's the only thing you can do to prolong the life,' said Angelo Cinquegrana, assistant vice president of field operations at Amerit Fleet Solutions.

Caliper stuck? Tips for unfreezing a frozen brake caliper

Caliper pistons that are not returning properly, or appear to be seized in the bore, can be caused by residual hydraulic pressure keeping the piston applied.

October 5, 2022

Keeping drivers cool while fuel prices remain hot

A typical long-haul truck idles about 1,800 hours per year, consuming about 1,500 gallons of diesel.

September 23, 2022

truck driver in a sleeper berth

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Women in Trucking member Angelika Mangino is the group's Member of the Month for April. Though more women are entering the filed, a WIT survey showed that safety remains a top concern among female drivers.

Female trucker surveys divide proponents on pay and cab design

Industry leaders agree on safety and respect as top issues among surveyed female truck drivers but disagree on pay and cab design.

Pilot Flying J station

Pilot Company names new executives as part of Berkshire Hathaway ownership

Volvo truck with crashed headlight

How technology is working to prevent your yard from becoming a trucking graveyard

trucks parked

You don't know what you don't know

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View, sort and download the trucking industry’s most comprehensive ranking of for-hire carriers in North America, based on a blend of metrics including fleet size, annual revenue and number of drivers.

State of Heavy Duty Repair

The 2023 State Of Heavy Duty Repair Report is here.