The heat shield sleeve will also help protect the wiring from direct-contact damage from a heat source if a fastener holding the harness in place on the vehicle fails.įor the best heat shield sleeves and insulation materials, Heatshield Products is the number one source for the most effective thermal barriers. Less heat exposure helps extend the lifespan of the wiring, improve reliability and make it easier to maintain the vehicle. Invest in Heat Shield Sleeve for Wire ProtectionĪdding a high-temperature heat shield sleeve to your vehicle’s wiring harness will help reduce the risk of the aforementioned issues, if not eliminating that potential outright. Without proper insulation to protect the wiring from constant heat exposure, the wiring will begin to degrade until it partially fails (intermittent, unreliable component function) completely fail (internal breakage of copper fibers) or create a short circuit situation that leads to a fire hazard. Besides having a computer to control the engine and drivetrain, many cars today have separate computers that manage the function of the interior systems, the chassis and in some cases a separate ECU for the transmission.Īll of this adds even more wiring to a vehicle, and with today’s engines designed to run constantly at temperatures 200 degrees F or higher, the wiring is exposed to a lot of heat constantly. Besides powering various components, the wiring also receives signals from the vehicle’s ECU that controls components and collects data from them to keep a vehicle running at optimum levels. There are multiple systems inside a modern vehicle that rely upon wiring for both power and electronic control: the engine, transmission, chassis, interior, and body. The Need for High Temp Automotive Wire Loom/Harness Protection A single overheated or melted wire can lead to you being stuck on the side of the road helpless in many of today’s cars and trucks. An engine bay has miles of essential wires keeping controlling things like headlights, wipers, air conditioning, brakes, and more.Ĭonstantly heated/overheated wiring can lead to partial function of components, malfunction of sensors, and even short circuits from melted wiring leading to fire. The heat exposure also increases the electrical resistance of the wiring, which can also negatively affect the function of sensors, electric components, and engine operation. As wiring is subjected to constant high-heat, the wiring can degrade over time physically and lead to electrical problems. It’s crucial to pick the right heat shield sleeve for engine bay wiring. It needs to be a material built specifically for underhood automotive applications and withstand constant temperatures up to 125☌, or 257☏. The answer is simple: install wiring insulation or heat shield sleeve material that can withstand direct contact with high-temperature surfaces and is flameproof. It’s unavoidable but it raises a valid concern - how do you protect wires from constant engine heat exposure and direct-contact with high heat sources? The more you drive your car, the more frequently the engine will heat cycle from “cold” to operating temperature.
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