Back to all

DOG FOOD IN YOUR ENGINE (Keeping Rodents out of your Engine)

August 14, 2022

A technician was telling us the other day that he was servicing an engine and spotted something he'd never seen before: A collection of dry dog food siting on a horizontal metal ledge near the base of the engine.  It was neatly stashed and was in a spot where the food pellets couldn't have simply fallen down in there.

Even though it's the first time he'd seen dog food in an engine, he immediately knew what was going on.  Critters like mice or chipmunks had found the dog food somewhere nearby and had used the engine as a nice storage unit. 

Mice, squirrels, chipmunks—you name it—like the heat of the engine.  And they'll use that to store up supplies of food for use in cold weather when outside food supplies are scarce.  The problem is they'll also chew on engine components while they're there. And they can do a lot of damage if they start gnawing on the wires.  Depending on how much of your electrical system needs to be replaced, repairs can mount up to the thousands of dollars. 

Those electrical problems can be tricky to track down, too, because the rodents can get to spots technicians don't have easy access to.  Oh, the signs are there; they'll find mouse droppings, acorns… even full mouse nests in your engine.  Yikes.

OK, but even if you get your vehicle fixed, how do you keep the critters from simply setting up their personal pantry again? Here are some things to try:

  • Don't leave any food in your vehicle
  • Get rid of that sweet-smelling air freshener. The rodents can mistake the scent for food and head right for your vehicle.
  • If you have a garage, block all access points for rodents. This can be very hard since they can squeeze through the tiniest spaces you can imagine.
  • Some people keep mothballs under the hood; rodents don't love 'em.
  • Pop the hood every couple of weeks and look for signs of mice: nests, droppings or stored nuts, acorn shells and pet food.

The next time you bring your vehicle into Tuffy Tire & Auto Service Center Waukesha for maintenance or service, your technician will be on the lookout, too. Hey, the dog food belongs in the dog's dish, not supplying fast food for little critters with razor-sharp teeth that can create electrical system mayhem.

Tuffy Tire & Auto Service Center Waukesha
S31 W24721 Sunset Drive
Waukesha, Wisconsin 53189
262-513-9500

More articles from Tuffy Waukesha

Plugging Away (Spark Plug Replacement)

September 14, 2025

If you drive a vehicle with a gasoline engine, thank the spark plugs for igniting the gasoline/air mixture in each cylinder that keeps your vehicle traveling smoothly down the road every day. Your spark plugs work hard, firing thousands of times in a well-choreographed order, and you usually don... More

Let's Clear Some Things Up (Headlight Restoration)

September 8, 2025

You know how exposing your skin to sunlight can cause sunburn and other unhealthy things. Sunlight can also create major problems for your headlights. After they've been exposed to ultraviolet light, acrylic headlights can yellow and fog due to oxidation. And when that happens, less light can ... More

Why Alignment Matters (Vehicle Alignment Maintenance)

September 1, 2025

It's one of those things that can happen on a multi-day road adventure or a quick trip to the grocery store. You hit a pothole, go too fast over a speed bump, nail a curb. When it happens, you think, "I wonder if that was hard enough to do any damage?" But things seem ok and you continue on yo... More