Don’t Forget About These Important Undercar Services

Aside from the tires, it’s easy to forget about the underside of your automobile. It’s important not to, however, especially during our cold Illinois winters. Road salt and wet and icy roads can wreak havoc underneath your car, crossover, SUV, or truck. We’ve got you covered here at Mark’s Auto Service. Here are undercar services that we offer our customers to ensure everything is a-okay underneath the body.


Your wheels need to be aligned and balanced to help you control your automobile and to distribute the weight evenly across the axles. A wheel alignment is usually needed every one or two years. Your wheels should be balanced every time you get your tires rotated, which should happen every 6,000 miles.


Road salt can be very hard on your vehicle’s chassis, as can wet and icy roads. The chassis is the framework that holds everything that makes up your automobile. This includes the differential, driveshaft, engine, suspension, transmission, and wheels. That’s a lot of stuff! It’s important to make sure your chassis is always strong, undamaged, and lubed annually.


Your engine generates power, your transmission generates torque, and both of these things are combined through the differential to power your wheels. Without the differential, your wheels won’t turn and you won’t get anywhere. We’ll inspect your differential and replace the oil if it needs it. Generally, differential oil lasts about 30,000 miles to 60,000 miles.

Exhaust System

Some exhaust system parts are found underneath the car. The parts found underneath the car include your muffler and your tailpipe. Your vehicle relies on the exhaust system to remove gases from the engine to keep the combustion burning and to protect you from carbon monoxide poisoning. The average lifespan of an exhaust system is every two-to-three years.


Finally, your vehicle’s suspension is made up of the shocks, steering system, struts, and wheels among other key parts. A suspension inspection every 12,000 miles is a good idea. If you don’t drive 12,000 miles in one year, then once a year works. This gives us a chance to make sure all of the parts are working as they should be and to replace any parts that need it.

We are Mark’s Auto Service, and we make it our mission to be the best auto shop in Loves Park, Belvidere, Roscoe, and Rockford, IL. Yep, we also make it our mission to be the best auto shop in Loves Park, IL, so give us a call today to schedule your undercar inspection and service.

Photo by Kameleon007 from Getty Images Signature via Canva Pro

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