The heads on your commercial or fleet diesel are one of the most integral parts of your engine. The heads are comprised of the valvetrain, exhaust ports, intake ports, and injector ports. In essence, a head’s purpose is to regulate and time the intake of fresh air, the release of exhaust, the compression of fuel and air that provides combustion, and the entry point for fuel into the cylinder. The head is where all the complex aspects of engine operation occur...without it, you just have a chunk of metal with pistons in it, and no way to make them move. Here’s what you need to know about your heads, from Hillin's Auto Repair, LLC in San Antonio, TX.

At Hillin's Auto Repair, LLC in San Antonio, TX, we understand the importance of a job well done. You need it done fast, but you also need it done right - cutting corners in the home stretch is obviously a bad idea.

Fleet cars, vans, and trucks see a lot of wear and tear. If your engine has already called it a day, then it’s obviously case closed - you need a new engine or a new vehicle. However, there are many times when an engine is about to go down, and you can get it taken care of before it kicks the bucket for good - saving you time and towing in the process.

Fleet cars, vans, and trucks see a lot of wear and tear. If your engine has already called it a day, then it’s obviously case closed - you need a new engine or a new vehicle. However, there are many times when an engine is about to go down, and you can get it taken care of before it kicks the bucket for good - saving you time and towing in the process.

Your fleet or commercial truck works hard, every day. Most commercial vehicles are heavy, and constantly under load. As a result, your brakes will inevitably develop issues over time. At Hillin's Auto Repair, LLC in San Antonio, TX, we can fix that.

There comes a time in the life of every fleet vehicle or commercial truck when you have to decide - is it time to retire that truck or van, or should you put the money into fixing it? At Hillin's Auto Repair, LLC in San Antonio, TX, we’re here to help.

What are radial tires, where do they come from, and why are they important? If you own or operate a fleet or commercial truck, radial tires are an advancement you’re thankful for, whether you realize it or not. Here’s why, from Hillin's Auto Repair, LLC in San Antonio, TX.

Windshield wipers are one of those things that you never think about until you need them. From Hillin's Auto Repair, LLC in San Antonio, here’s a reminder to keep yours in good shape, so you’re ready when weather strikes.

While fleet trucks and vehicles tend to persist as some of the more simplistic vehicles on the road, the modernization and computerization of the automotive world has not left them untouched. These days, everything is equipped with computer systems, sensors, modules, and more. At Hillin's Auto Repair, LLC in San Antonio, TX, our professional technicians have the knowledge, equipment, and ability necessary to provide the accurate and vital diagnostics required to keep your fleet on the road.

At Hillin's Auto Repair, LLC in San Antonio, TX, we want you to be able to recognize an issue with your tires. It’ll keep you safe, prevent a blowout, and let you see for yourself whether or not a tire needs to be replaced. Here’s a short guide to tire problems.