Mechanic Shop

DSL Express Mechanic Shop its heavy duty Truck and Trailer Repair shop to provide semi truck repair, trailer repair and PM service to Villa Park – Chicago, IL and surrounding areas. Our company mission is to provide a high quality and cost-efficient service while minimizing downtime. We are able to perform a broad spectrum of semi truck repair as well as trailer repair.

Get your fleet maintenance and equipment repair done with a company that cares. We are happy to provide a second opinion to our customers who experience a breakdown anywhere outside their hometown. We have extensive experience in saving the money by avoiding unnecessary truck or trailer repairs and mitigating the pricing of needed fix.

We take pride in hiring only experienced, knowledgeable, trustworthy technicians and staff that mirror our company’s philosophy. Our goal is to gain customers that will be customers for life, not just for a one-time service. To keep your business, we deliver the highest quality service at a reasonable price.

Our shop is equipped with the high-end equipment that helps to diagnose the breakdown correctly and address the issue promptly.

Preventative Maintenance and Annual Inspections

DSL Express Mechanic Shop is a full-service preventative maintenance and fleet repair center.

Our preventative maintenance and annual inspections include:

Oil, Lube, and Filter

Engine oil, or motor oil, is the oil used for lubricating the various parts of your truck’s internal combustion engine. The oil reduces wear, lessens friction, cools the engine parts, and inhibits corrosion. One of the cheapest and most effective ways to prolong the life of your truck’s engine is to have its oil and oil filters changed regularly. Oil changes keep engines healthy. With regular oil changes, your engine will run stronger for longer. Contact DSL Express Mechanic Shop in today for all your oil change needs. Our experts will change your truck’s oil and oil filters if needed.

DOT Inspections

State Department of Transportation’s (DOT) requires inspections for safety assessments. The Department of Transportation relies on appointed and licensed auto repair shops to conduct vehicle-only inspections.

Customer Required Inspections

In addition to DOT inspections, DSL Express Mechanic Shop handles customer-required inspections. For all your customer-required inspection needs, contact us.


Air Brake System Maintenance and Repair

The Air Brake System is vital to any vehicle, but a semi truck is perhaps the most critical type of vehicle when it comes to the importance of brakes.

Brake failure is a common cause of accidents involving tractor trailers, and these accidents are an excellent cause for a lawsuit. If you wish to avoid a lawsuit for your fleet, pay close attention to proper maintenance for your brakes.

Air brakes are used in trucks, buses, trailers and semitrailers.  This is the preferred type of braking system for these vehicles for several reasons. First, the use of air allows multiple vehicle units to be coupled so that all units have braking capability and so that all of those units’ brakes may be controlled from the cab. Coupling would be unfeasible if a liquid were used as the mode of transmission of force, as it is in hydraulic brakes.

In addition, the use of an air brake system allows for the incorporation of an emergency braking system that utilizes parts of the service brake and parking brake systems. Emergency braking systems are required on all semitrailers by CFR 49 393.43, as it states “Every motor vehicle, if used to tow a trailer equipped with brakes, shall be equipped with a means for providing that in the case of a breakaway of the trailer, the service brakes on the towing vehicle will be capable of stopping the towing vehicle.”

Set up a routine plan for having a professional service the brakes on your semi trucks. While the distance a truck can travel between brake service is going to vary depending on the driving habits of the driver, it’s best to have the brakes inspected and maintained every time you have the truck’s oil changed. This will keep the driver, the truck and everyone on the road with them as safe as possible.

Air brake systems are three braking systems combined:

  • The service brake system applies and releases the brakes when one uses the brake pedal during normal driving.

  • The parking brake system applies and releases the parking brakes when one uses the parking brake control.

  • The emergency brake system uses parts of the service and parking brake systems to stop the vehicle in the event of a brake system failure.

Brake Services Available:

  • Replace pads and other parts

  • Grease the slack adjusters

  • Check and grease the Scams

  • Check the air compression pressure gauge

  • Check linings and hoses

  • Brakes PM service

Semi Truck AC Service

AC service and preventative maintenance are very important. The A/C system may break eventually with usage, hose pipes, tubes may clog and drip if not serviced, causing reduced efficiency heating and cooling capabilities. For AC service, preventative maintenance or other truck repair questions please call us.

Regular maintenance and early detection of leaks or damage to your vehicle AC system can save you time and will keep it operating at peak performance!

Indications your A/C system may be having issues:

  • If your air conditioning blows only slightly cooler air compared to the exterior air

  • Air that blows in smells damp, musty, or like mildew and mold

  • Your cabin does not warm up in cold weather, or is just a little warmer than outside

  • The defroster takes longer than typical to operate, or does not operate

  • Your heater or A/C only functions when driving, not when idling, or quits blowing when the vehicle is stationary

  • Your heating system blows cold air, or the air conditioning blows warm air

  • Low airflow even at the highest fan setting.

A comprehensive evaluation of heating and A/C system includes:

  • Examining the internal controls and blower

  • Checking radiator coolant operating temperature, hoses, pressure radiator cap and thermostat

  • Inspecting the compressor belt

  • Inspecting system and seals for leaks or various other damages.

  • A cooling system pressure test

  • Verifying the A/C pressure meets manufacturer specifications

  • Measuring the interior vent air temperature

Semi truck drive train repair: clutches, differential and drive line

A clutch is a component of the drive train that engages and disengages the power transmission from the driving shaft to driven shaft. The clutch is located between the gearbox and the engine. During a gear change, disengaging is required and the clutch facilitates this disengagement. Clutches need periodic servicing and replacing. At DSL Express Mechanic Shop, we offer differential repair, rebuild, or maintenance services for trucks and trailers.

Our knowledgeable semi truck technicians will ensure that all your truck or clutch issues are addressed.

The differential is another component of your truck’s drive train. The differential lets your truck make turns with ease (remember, the different wheels of your truck travel varying distances when turning). The differential should be serviced regularly. Your fleet of trucks requires periodic differential repairs and replacement.  When it comes to clutch repairs and replacements, you can count on DSL Express Mechanic Shop.

A drive line is made up of all the parts of the powertrain (the main components that generate power and drive your truck), but excluding the transmission and engine. The driveline, which is located after the transmission, changes depending on whether the vehicle is rear wheel, front wheel, or four-wheel drive.

With time, moisture, pressure, heat, and load cause gear oil to breakdown leading to lubrication failure and worn out gears. This will result in noisy engines and poor truck performance. To solve drive line problems, you need to have worn out lubricant and engine parts replaced.

Truck transmission maintenance and repair

Everyone knows the importance of regular trailer and truck maintenance such as oil changes and rotating tires, but what about transmission maintenance and why is the transmission so important? The transmission is a major part of your vehicle. It is made up of hundreds of complex components that enable your vehicle to move. The transmission fluid also serves a multitude of purposes. It cools, lubricates, transmits force, transmits pressure, inhibits varnish build-up and protects the transmission. Transmission service helps keep the transmission fluid clean and the transmission running smoothly.

Harsh driving conditions can devastate the life of the transmission fluid, which can then lead to transmission failure. Old and dirty transmission fluid can lead to the need for an entirely new transmission. Regular transmission maintenance services can help to prevent transmission failures and keep your transmission in Road Ready condition.

A truck’s transmission adapts the output mechanical power from the engine to drive the wheels. The main purpose is to reduce the number of revolutions made by the crankshaft by use of interlocking gears. The common types of transmissions include manual transmission, automatic transmission, semi-automatic transmission, direct shift gearbox (DSG), TipTronic gearbox, and continuous variable transmission (CVT).

To help familiarize you with the types of difficulties that may arise with the transmission, we have listed a few of the common malfunctions that can occur.

  • Loss of power upon acceleration

  • Transmission is unable to go into gear

  • Hard or late shifting of gears

  • Transmission slipping

  • Chatter or grinding noise in the transmission

  • Transmission leaking

  • Truck is unable to move

DSL Freight