Skip the auto shop - Our mechanics make house calls

How Are Car Wires Protected From Damage?

Wiring

Your vehicle's electrical system is one of its most important – and most fragile – components. A simple peek under your hood will verify that there are a massive amount of wires that connect electrical components together. Some go to the alternator, others to accessories like windshield wipers, but all connect to the engine - the source of power. However, the engine creates a lot of heat, which can melt or destroy wires unless they are protected. Wires also face many hazards that can cause them to short out, stop working, and possibly even damage your engine or other parts.

Due to these facts, protecting car electrical wires and connections is vital to the overall performance and operation of any vehicle. Noted below are a few of the common ways that automotive manufacturers protect wires from exposure to extreme conditions.

Understanding The Dangers

Contrary to popular belief, heat alone is not the only condition that can damage electrical wires. In fact, both heat and extreme cold can cause wires to break down or crack. Moisture is another element that can trigger an electrical problem that needs to be diagnosed and repaired by a professional mechanic. In addition to simply not working, a serious concern is the possibility of fire.

Dirt and debris can also get to the wires, causing them not to work or to short out. In most instances where you experience an electrical issue with your car, the actual problem is with electrical connections that have become dirty. This creates a weak electrical connection. In order to reduce the possibility of electrical problems, you need to know how to protect the engine wiring for safety and performance.

Options for Protecting Electrical Wires

Many wires come with insulation to keep them away from the hazards. One way that manufacturers protect electrical wires is through the installation of special heat shields. They slip on and insulate the wires from getting too warm, which is beneficial since the engine area can become very hot. They act as a sleeve that goes over any current covering to provide more insulation. Another common problem that creates damage to electrical wires are sharp edges. To avoid splitting or fraying wires, they should go through a grommet if they are near sharp edges or fiberglass. If the cover on a wire becomes damaged or torn, it should be sealed with electrical tape to prevent further damage.

Keeping electrical wires properly secured is another way they are protected from damage. Wires are often tied to a solid surface so they can’t move and get cut or worn. If they are allowed to move around, the connection can be loosened until the electricity doesn’t flow to whatever component is attached to the wire.

Although most of these items are designed to protect electrical wires from the factory, staying on top of routine cleaning and under-the-hood maintenance can prevent many common electrical problems. Anytime you experience an electrical issue, it's a good idea to contact a professional mobile mechanic to come to your location and complete an electrical problems inspection.

The statements expressed above are only for informational purposes and should be independently verified. Please see our terms of service for more details
Icon-warranty_badge-02

Skip the repair shop, our top-rated mechanics come to you.

At your home or office

Choose from 600+ repair, maintenance & diagnostic services. Our top-rated mechanics bring all parts & tools to your location.

Fair & transparent pricing

See labor & parts costs upfront, so you can book with confidence.

12-month, 12,000-mile warranty

Our services are backed by a 12-month, 12,000-mile warranty for your peace of mind.

Get A Quote

Need Help With Your Car?

Our certified mobile mechanics make house calls in over 2,000 U.S. cities. Fast, free online quotes for your car repair.

GET A QUOTE

More related articles

How Long Does a Vacuum Brake Booster Check Valve Last?
The braking system on your car requires a lot of pressure. The vacuum booster is one of the main sources of this pressure. This booster will take the pressure that...
How to Get a Louisiana Driver's Permit
s licensing program. The first step in this program is to obtain...
P2422 OBD-II Trouble Code: Evaporative Emissions Control System (EVAP) Vent Valve Stuck Closed
Diagnostic Trouble Code (DTC): P2422 P2422 code definition Evaporative Emissions Control System (EVAP)...


Related questions

Q: Car keeps stalling when I press on the brakes

Your car has a unit in the fuel injection system called an idle air control valve. The idle air control valve monitors the air intake as it is mixed with fuel prior to being injected into the engine. This valve...

Q: What other issues could I check, if I changed my coolant temperature sensor and my vehicle is still jumping or missing?

You need to fix that air leak. The best thing to do is buy a new intake boot. If you're short on funds, you can use duct tape or some other strong tape to cover the hole in lieu of...

Q: I changed my fuse for the lighter a fuse fell ou next to it I put it back now car starts but will not drive could u help please

Without seeing the fuse box and which fuses fell out this may be tough to diagnose. Try checking the immobilizer fuses (12/37) to be sure they are in the correct place and not burnt. If this does not work, you...