24/7 Heavy Duty Roadside Assistance, 24/7 Heavy Duty Towing & Recovery and Trailer Repair & Maintenance in Danville, Oakwood, Covington, Cayuga and the Surrounding IN & IL Area

24/7 Heavy Duty Roadside Assistance

Our emergency road services for semi trucks will get you back on the road fast.

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24/7 Heavy Duty Towing & Recovery

We’ve been providing semi truck towing services for more than 30 years.

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Trailer Repair & Maintenance

We will take care of all of your semi truck trailer repair and service needs.

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• Big Rig Repair & Diagnostics

• Semi Truck Towing

• Semi Truck Roadside Assistance

• Heavy Duty Recovery 

• Big Rig Mechanics

• Winch Outs & Load Swaps 

• Trailer Repair & Service

• Truck and Trailer Welding

• Fast Response & Fair Rates

• 30 Years of Experience

Providing Fast, Effective Services

Bob’s Road Service offers full service 24/7 roadside semi truck towing, repair and maintenance in Danville, Oakwood, Covington, Cayuga and the Surrounding IN & IL Area. If you suffer a commercial vehicle breakdown, need trailer repair or are due for semi truck maintenance, one quick call to our mobile truck mechanics takes care of it all. With years of hands-on experience servicing heavy duty trucks and trailers, you can count on our team to get you back on the road in a fast and fair priced manner, no matter what your tractor trailer needs. From diesel engine starting assistance and mobile big rig oil changes or truck brake repair and electrical services, you can count on us to keep you moving. If we can’t get you going from the road, our semi truck towing company can transport your rig to our heavy duty fleet vehicle shop or anywhere else you desire. Our goal is to help you hit your delivery deadlines by providing fast, effective service. Give us a call day or night to request tractor trailer towing or 24/7 roadside semi repair in Danville, Oakwood, Covington, Cayuga and the Surrounding IN & IL Area.

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As a local semi truck mechanic, the team at Bob’s Road Service takes great pride in helping fleet managers and owner-operators in Danville, Oakwood, Covington, Cayuga and the surrounding IN & IL area. We know how important it is to have semi repairs and maintenance completed in a timely manner, that’s why we’ve invested in the latest truck diagnostic and repair technology to provide the best possible service. By offering 24/7 roadside assistance for trucks, heavy truck repair and maintenance,  trailer repairs and semi truck towing services, we can minimize downtime and maximize your bottom line. Our heavy duty mechanics service all makes and models of big rigs and trailers, so don’t hesitate to call Bob’s Road Service at 765-709-9910  if you run into any trouble on your run. We’ll immediately dispatch a nearby technician who can fix truck and trailer issues quickly and correctly, getting you back on the road in no time.

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Bob's Road Service Reviews

Bob's Road Service Blog

We invite you to monitor our News Blog for informative articles.

Common Issues that Cause Semi Trucks to Struggle to Start

By Bob’s Road Service • January 1, 2026
When a semi truck struggles to start, it can quickly disrupt schedules, delay deliveries, and lead to costly downtime. Because heavy-duty trucks rely on powerful electrical and fuel systems to crank large engines, even small problems can prevent them from starting properly. At Bob’s Road Service, our local semi truck mechanics provide expert big rig starting services in the greater Cayuga, IN area. Here are four reasons why a semi truck might struggle to start. Weak or Failing Batteries Batteries are one of the most frequent reasons a semi truck has trouble starting. Over time, batteries lose their ability to hold a charge, especially in extreme temperatures. Corroded terminals, loose connections, or aging battery cells can reduce the power needed to crank the engine. When batteries are weak, drivers may notice slow cranking, dim lights, or clicking sounds when attempting to start the truck. Starter Motor Problems The starter motor is responsible for turning the engine over when the ignition is engaged. If the starter is worn, damaged, or receiving insufficient power, the engine may not crank at all or may turn very slowly. Common signs of starter trouble include grinding noises, intermittent starting, or a complete lack of response when the key is turned. Starter issues often worsen over time if not addressed promptly. Fuel Delivery Issues A diesel engine needs the right amount of clean fuel delivered at proper pressure to start efficiently. Clogged fuel filters or failing fuel pumps can restrict fuel flow and make starting difficult. When fuel delivery is compromised, the engine may crank but fail to fire or start only after repeated attempts. Electrical System and Wiring Faults Semi trucks rely on complex electrical systems to control starting functions. Faulty wiring, blown fuses, or failing relays can interrupt the flow of electricity to critical components. Loose or damaged wires may cause intermittent starting problems that are difficult to diagnose. Electrical issues often worsen with vibration and age, making regular inspections essential. Semi Truck Repair & Roadside Assistance in Cayuga, IN For mobile semi truck starting services in the Cayuga, IN and Danville, IN areas , contact Bob’s Road Service at  765-709-9910  . We offer mobile big rig repair services to get you back on the road ASAP!

4 Ways to Reduce the Risk of Big Rig Tire Blowouts

By Bob’s Road Service • November 26, 2025
Tire blowouts on big rigs can be dangerous, stressful, and costly. When a commercial truck loses a tire at highway speeds, it puts the driver and everyone else on the road at risk. Blowouts often result from preventable issues, which is why proper tire maintenance is essential for every trucking operation. By following a few key practices, drivers and fleet managers can greatly reduce the likelihood of tire failure. But if your big rig does suffer a tire blowout, you’ll want help to arrive ASAP. At Bob’s Road Service, we provide 24/7 heavy duty roadside assistance in the greater Cayuga, IN area. Here are four tips for preventing big rig tire blowouts. Maintain Proper Tire Pressure One of the biggest causes of tire blowouts is incorrect tire pressure. Both overinflation and underinflation can create stress that weakens the tire over time. Underinflated tires flex excessively and build up heat, while overinflated tires become more vulnerable to impact damage. Drivers should check tire pressure regularly—ideally before every haul—using a reliable gauge. Keeping the tires inflated to the manufacturer’s recommended levels helps ensure safer handling, better fuel-efficiency, and a significantly lower risk of blowouts. Inspect Tires Frequently for Wear and Damage Regular inspections are essential for spotting problems before they become dangerous. Drivers should look for issues including cuts, bulges, uneven tread wear, and embedded debris. Uneven wear often indicates an alignment issue or suspension problem that should be addressed immediately. Catching early signs of tire deterioration prevents small issues from escalating into catastrophic failures. A thorough pre-trip inspection is a simple but smart way to keep big rig tires in safe operating condition. Avoid Overloading the Truck Exceeding weight limits places tremendous stress on tires and increases the risk of overheating. Drivers and trucking companies must make sure that cargo is properly distributed and stays within legal weight limits. A properly loaded truck not only helps prevent blowouts, but can also improve braking and handling. Address Alignment and Suspension Issues Quickly A truck that is out of alignment or has worn suspension components can cause rapid tire wear and uneven pressure distribution. These mechanical issues make tires more susceptible to blowouts, especially during long hauls. If a driver notices steering drift, vibrations, or unusual tire wear patterns, the truck should be inspected by a mechanic as soon as possible. A well-maintained alignment and suspension system helps the tires wear evenly and last longer. Heavy Duty Roadside Assistance in Cayuga, IN When you need big rig roadside assistance in Cayuga and the surrounding area, contact Bob’s Road Service at  765-709-9910  . We also provide 24/7 semi truck towing in Cayuga and the surrounding IN and IL areas!

4 Common Electrical System Problems in Semi Trucks

By Bob’s Road Service • October 30, 2025
A semi truck’s electrical system is responsible for far more than just keeping the lights on—it powers critical components like the starter, alternator, sensors, and onboard electronics that ensure reliable performance. Because long-haul trucks rely heavily on electrical systems for operation and safety, even minor electrical issues can quickly escalate into serious problems. At Bob’s Road Service, we provide expert semi truck electrical repair in the greater Cayuga, IN area. Here are four common electrical system problems in semi trucks that should be addressed right away. Battery Troubles One of the most common electrical problems in semi trucks involves the batteries. Batteries that are weak or corroded can cause hard starts or complete power failure. Since truck batteries endure heavy loads from accessories and electronics, they can wear down faster than those in standard vehicles. Corrosion on terminals or poor connections can also prevent proper charging. Regular inspections and testing can help identify weak batteries before they fail and leave you stranded on the road. Alternator Issues The alternator is responsible for keeping the truck’s batteries charged while the engine runs. When it starts to fail, the electrical system won’t get the power it needs, leading to flickering lights, warning indicators, and reduced battery performance. A malfunctioning alternator can also cause other systems to shut down or behave erratically. Because an alternator failure can stop a truck in its tracks, this issue should always be diagnosed and repaired immediately. Starter Motor Problems When a truck won’t start, the problem may lie with the starter motor. A worn-out or failing starter can struggle to engage the engine, producing clicking noises or slow cranking. Since semi trucks operate in demanding environments, starters can wear out faster due to heat, vibration, and frequent use. Prompt replacement enables reliable starts and prevents unnecessary downtime. Wiring and Connection Issues Semi trucks have complex wiring systems that power everything from engine sensors to trailer lights. Over time, vibrations and exposure to the elements can damage wiring, leading to frayed wires, short circuits, or loose connections. Damaged wiring can cause intermittent electrical problems that are difficult to trace, making it essential to have a professional perform a thorough inspection. Big Rig Repair & Roadside Assistance in Cayuga, IN When you need semi truck repair in the Cayuga, IN and Danville, IN areas , contact Bob’s Road Service at  765-709-9910  . We offer a variety of mobile big rig repair services to get you back on the road as soon as possible!
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