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When left unattended, rust on your vehicle can lead to serious structural issues, compromising the integrity of the frame and reducing safety in the event of an accident.Where Does Rust Begin?
Rust often starts at the bottom of the car, particularly after driving on salted roads. However, it can develop anywhere exposed to moisture and corrosive substances. It's crucial to thoroughly inspect your vehicle and seek professional help to address any visible signs of rust, such as bubbling or flaking paint.
Frame Rails
The frame rails run along the sides of your car, just beneath the doors. They're close to the ground and exposed to the elements, so they're prone to rust. Cars often use thinner steel in this area, making them even more vulnerable. Ignoring rust here could allow it to spread throughout the vehicle, leading to costly repairs later on.
Wheel Wells
Above your tires, the wheel wells are constantly exposed to corrosive substances like rock salt during winter and accumulate moisture and debris year-round. The metal used in these areas is usually thinner and more susceptible to rust. Perform a visual check first, then feel along the interior with your hand for any rough patches.
Exhaust System
The bottom of your car is generally more vulnerable to rust due to its proximity to the ground and exposure to the elements. The exhaust system, especially the tailpipe, is particularly at risk from both internal and external moisture, as well as mud and debris buildup. The materials used in the exhaust system, such as stainless and cold-rolled steel, are also more prone to rusting. Besides checking the tailpipe, examine areas where the system bends or connects, like the muffler and catalytic converter. A rusting exhaust system can affect your car's ability to manage emissions and might allow carbon monoxide to enter the cabin.
Rocker and Quarter Panels
Rocker panels and the lower rear quarter panels sit near the base of the car. This area is not only exposed to the elements but also to road debris, moisture, and salt. Paint chips are common here, exposing the underlying metal and inviting rust to take hold.
Floors
We don’t often check under the carpets in our vehicles, but rust can start or persist there. Remove the floor mats and inspect the insulation within the cabin. Don’t forget to check the trunk as well, lifting the carpet to inspect around the spare tire.
Doors
Rust can form on doors due to chipped paint, debris, or moisture collecting in the drain holes. Inspect both the interior and exterior of the doors for rust patches and ensure the drain holes are cleaned regularly.
The Engine Bay
While most engine parts experience only surface rust that rarely affects performance, it’s still wise to check under the hood for rust-prone areas like the exhaust manifold, alternator, and strut tower—especially in older vehicles with fewer plastic components.
Fenders
Modern vehicles often use plastic for the inner fenders, limiting rust spread. However, the outer fenders, made of sheet metal, can still rust. On older cars, both sections remain vulnerable. This area can trap debris and moisture, so keep an eye out.
Suspension
The suspension system includes several metal parts that support the car. Rust isn’t just a cosmetic problem here; it can quickly become structural once it spreads. Focus on checking the shocks, struts, Control Arms, ladder frame, and any bolted components.
Are you worried about rust? The team at DaSilva’s Auto Body can inspect and rustproof your vehicle before corrosion becomes a major issue. Contact our Naugatuck shop to learn more and protect your investment.
I hope this helps you understand how to prevent and address rust effectively!