Why Do Rats Like To Chew On Car Wiring Covers?

Have you ever experienced starting your car in the morning only to find out that a rat has chewed on the electrical wires? It is not only annoying and stressful but extremely frustrating particularly if you have to go to work or school.

Squamish is a port city that is why a rat problem is not new to them; however, what are the chances that increased the issue of rats chewing on the wires of cars? According to Noel Koehn, owner of Squamish Newport Auto, rats chewing on wire covers have increased since auto manufacturers switched from petroleum-based plastics to vegetable-based plastics to cover wiring.

The switch to vegetable-based plastics was a move for the car industry’s green movement. However, about 30 vehicles a year have had their wiring covers chewed by rodents. Koehn said that they once saw 3 cars being towed in because the wiring harness was chewed. One of the technicians experienced a mouse running down his arm while he was changing the oil of a car.

The problem with rats worsens during the winter season when the pests start looking for a warm shelter. The rodents can find their way inside the car’s column area, right below the wipers and start making nests. Sometimes, the rats go right into the heater core and make a nest above the cabin air filter.

What is more frustrating for car owners is the cost of a fix. Removal of a rat’s nest and replacement of chewed wiring can cost between $400 and $1,000. In order to deter rats from building nests inside the car, Koehn suggests the use of mothballs under the hood.

A suggestion from a pest control service provider is to park the car in a garage and avoid starting the engine at dusk or in the evening. Rats usually come out at night searching for food and warmth.

Rats are certainly a big problem in many communities. The best solution can be provided by rat removal in Perth that will immediately respond to the problem and ensure that it is addressed satisfactorily through the use of environmentally friendly pest control products.


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