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 Glenn's Auto & Truck Repair in Petaluma, CA.

At Glenn's Auto & Truck Repair in Petaluma, CA, 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.

When your commercial or fleet vehicles need maintenance or repair, we know it can be a hassle. We also know that you want it to stay fixed and stay on the road for as long as possible. At Glenn's Auto & Truck Repair, a huge aspect of our focus on quality is not only centered around the work we do but also the components we install.

If you’re reading this, there’s a good chance you own or operate a fleet or commercial truck. If you do, then you probably know the difference between a job done, a job done well, and a job done perfectly. At Glenn's Auto & Truck Repair in Petaluma, CA, we strive for the latter.

When you run a company that uses fleets, the safety of your fleet and drivers should always be one of your top concerns. There is always room for improvement when it comes to safety and reduces accidents.

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 Glenn's Auto & Truck Repair in Petaluma, CA, 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 Glenn's Auto & Truck Repair in Petaluma, CA, we’re here to help.

Your fleet or commercial vehicles most likely spend a lot of time idling. Whether it’s to keep warm or simply out of convenience, the stop and go lifespan of these vehicles mean idling is a part of their duties. But, is it bad for them? Glenn's Auto & Truck Repair in Petaluma, CA has the information you need.

Can you say for certain all the tires in your fleet, or on your commercial truck, are roadworthy and ready? Proper attention to tire condition is so important, but how do you properly care for your tires? From Glenn's Auto & Truck Repair in Petaluma, CA, here’s what you need to know.

If you own or manage a fleet or commercial truck, you know what a headache it can be to take the same vehicle in for maintenance over and over, wasting valuable time. At Glenn's Auto & Truck Repair in Petaluma, CA, we have the technology, equipment and technicians necessary to get the job done fast, and get it done right.

Routine maintenance keeps your fleet trucks safe on the road and protects you against unplanned trips to your local automotive shop! One thing a lot of people forget about is to have their coolant flushed. Glenn's Auto & Truck Repair in Petaluma, CA will help you make sure your fleet vehicle is properly flushed every time!

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 Glenn's Auto & Truck Repair in Petaluma, CA.

Windshield wipers are one of those things that you never think about until you need them. From Glenn's Auto & Truck Repair in Petaluma, 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 Glenn's Auto & Truck Repair in Petaluma, CA, 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 Glenn's Auto & Truck Repair in Petaluma, CA, 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.