Frequently Asked Questions

How Does a DPF Work?

Diesel Particulate Filters (DPFs) are designed to capture soot and other diesel particulate matter. Your DPF is connected directly to your exhaust piping, meaning all of your engine’s exhaust will flow through it before exiting the vehicle. Since your DPF’s capacity is not infinite, it needs to be cleaned every so often. Some modern heavy-duty trucks have DPFs with self-cleaning modes, whereas others need to be cleaned by a mechanic manually.

What Heavy Equipment Does Upon The Rock Work On?

Construction Equipment

Although construction equipment is designed to be durable and extremely tough, they’re not immune to wear and tear. Over time, these machines may break down and need repair. Here at Upon The Rock, we offer repair services for construction equipment of all kinds. Whether you’ve got a bulldozer or a large dump truck in need of repair, we’ve got you covered. We have the tools and equipment to get any heavy equipment job done.

Recovery Equipment

Do you have a large heavy wrecker that’s in need of repair? If so, you’ve come to the right place. Here at Upon The Rock, we offer repair services for large rollback tow trucks, large crane trucks, rotators, and other heavy recovery equipment. With years of experience in the industry and the tools and equipment to get any job done, you can rest assured knowing your gear is in the right hands.

Why Do I Keep Blowing Fuses?

Fuses are sacrificial parts. This means they’re designed to protect other components within your electrical system from surges in electricity. When fuses blow, they open an electrical circuit in order to protect what’s behind it. Many presume the fuse itself is at fault, but in reality, something is causing the fuse to blow. Until the initial issue is resolved, it’s unlikely that any new fuses you install will stay in one piece. Fortunately, we here at Upon The Rock are experts at diagnosing and repairing electrical problems. Give us a call to see what we can do for you!

Why Won’t My Truck Start?

Heavy-duty trucks use large batteries to start their diesel engines. Although diesel engines don’t require the spark that gas engines do, they still need power for their fuel injection systems and glow plugs. Without that power, your engine is unlikely to start. If you’re confident your battery is in good shape and has no reason to be dead, you’re likely looking at a faulty alternator. Your alternator is responsible for using the power from your diesel engine to charge your battery, but when that alternator fails, your battery will fail to charge.