As your vehicle drives down the road, it will encounter water, mud, and other gunk as it goes over the bumps or potholes of the road underneath it. Over time, all of this water splashing up onto the undercarriage of your vehicle can begin to cause a problem. If you don't get your car washed on a regular basis including an undercarriage treatment, it's possible your vehicle's undercarriage will begin to rust over time. If left untreated or un-repaired, this rust can begin to weaken the structure of your entire car as the undercarriage continues to degrade. For best results, you should get your undercarriage cleaned and repaired as soon as possible. Here are some tips that might help you fix your current problem and get your vehicle back on the road in good condition.

Get Down to It

First things first, you will need to figure out a way to actually access your undercarriage. If you have access to a hydraulic jack, you can raise your vehicle up so you can get to the undercarriage directly. If not, you might have to try ripping up your car's carpeting and trying to get to any places that have rusted through from that angle. If you will be doing work inside the interior of the car, make sure you cover your seats and the rest of the upholstery with garbage bags or another protective cover.

Sand It Away

If you are lucky, you will only have rust in certain spots and not an undercarriage that is completely rusted over. Smaller rust spots can easily be fixed by purchasing some harsh sandpaper or a sanding block. You don't even have to rub very hard with the sandpaper; just stay consistent with your strokes, and the rust will slowly begin to come off.

Degrease and Clean

As the rust falls off, you may start to notice if there are actual holes in the undercarriage. But to get a full picture, you'll want to add a degreasing solution and wipe away all of the grime. This will leave what's left of your undercarriage fully exposed and viewable so you can see the full extent of the damage.

Use Fiberglass Strips or Contact a Professional

If you only have one or two small holes in the undercarriage, you could try placing a fiberglass resin over the opening along with a hardening compound. When the fiberglass forms, the opening or hole will disappear.

But if you have far too much rust on your undercarriage to reasonably sand it all away or you discover that you have multiple holes throughout the entire undercarriage, it's best to seek a professional. A contractor or company that offers undercarriage repair services can get you back on the road in no time.