O'Fallon Auto Repair

Horsepower vs. Torque: What Your Engine's Numbers Really Mean If you have ever found yourself in a heated debate at a car meet or simply while browsing the spec sheet of a new vehicle, you have likely encountered the age-old question: horsepower or torque, which is more important? At Hillside Auto Repair, we hear this question frequently from our neighbors here in O'Fallon, Missouri. It is a topic that can seem shrouded in mystery, but understanding the difference between these two measurements is key to understanding how your vehicle behaves on the road. We are here to clear up the confusion and explain exactly what these numbers mean for your daily drive. TORQUE Let us start with the fundamental definition of torque. In the simplest terms, torque is a twisting force. It is the force that causes rotation, and in the context of your car, it is the force that gets your vehicle moving from a standstill. Think of it like this: when you use ... read more

A Guide from Your Friends at Hillside Auto Repair We have all been there. You are running late for an appointment, or maybe you are just finishing a long day at work in O'Fallon, and you turn the key, only to be greeted by that dreaded clicking sound. A dead car battery is one of the most common automotive inconveniences, but knowing how to handle the situation like a professional can save you time, money, and a lot of frustration. At Hillside Auto Repair, we believe in empowering our customers with knowledge, so we have put together this comprehensive guide on how to jump-start your vehicle safely and effectively. Symptoms A battery on its last legs often gives you warning signs before it leaves you stranded. You might notice that your engine is cranking slower than usual when you start your car, or that your headlights are dimmer than they should be. Sometimes, you will hear a rapid clicking sound when you turn the ignition, which is the starte ... read more

There is a certain pride that comes with rolling up your sleeves and tackling a car repair in your own driveway. For decades, the weekend warrior in O'Fallon could handle a lot of the heavy lifting on their vehicles, saving a significant amount of money. We have seen it all, and we respect the grit. However, the automotive landscape has shifted dramatically under the hood. What used to be a simple wrench-turn is now a complex interaction with a vehicle's computer network, and that simple truth is turning what used to be a cost-saving hobby into a financial disaster waiting to happen. What's Changed? We often get calls from frustrated DIYers who watched a video online and thought they could save a few bucks. They followed the steps perfectly, but they missed a critical electronic step that the video conveniently skipped. Take the humble brake job as a prime example. Older vehicles allowed you to simply compress the caliper piston to fit new pads. Try that o ... read more

We have this conversation at least three times a week here in O'Fallon. A customer comes in with a repair estimate, looks at the parts pricing, and asks the question that always leads to a longer discussion. What is the difference between a genuine part and an OEM part? Is there really a difference, or are we just splitting hairs to justify a higher price tag? These are fair questions, and as a shop that has been serving this community for years, we believe you deserve a straight answer. So let us break it down in plain English, because understanding this distinction could save you a significant amount of money without sacrificing the quality your car deserves. Let us start with the definitions, because the terminology gets thrown around loosely and that is where the confusion begins. What does Genuine mean? A genuine part comes in a manufacturer-branded box. Think Toyota, Honda, BMW, Ford, or Chevrolet stamped right on the packaging. This is the exact same part ... read more

It's an Off-Road Vehicle, Shouldn't It Be Tougher? It is a question that echoes through our service bay at Hillside Auto Repair in O'Fallon a lot, and frankly, we completely understand why it gets asked. A customer rolls in behind the wheel of a commanding Range Rover or a go-anywhere Discovery, their expression a mixture of pride and exasperation. The conversation starts with the usual pleasantries, but it does not take long before the topic shifts to the suspension. The dashboard is lit up with amber warnings, the once-plush ride has devolved into a teeth-chattering bounce over minor imperfections, or perhaps that telltale lean has developed in the driveway, making the vehicle look more like a tired old dog than a pinnacle of British engineering. There is a palpable sense of frustration, a feeling that a machine built to conquer the Serengeti should be able to handle the daily commute without demanding so much attention. The short, honest answer to why th ... read more