What are the symptoms of a damaged engine wiring harness?
2 Answers
Engine wiring harness damage can cause inaccurate signals leading to vehicle failure to start. Here are the relevant details: 1. Causes of damage: Proximity to heat radiation sources accelerates wiring harness aging. High-temperature gas leaks in the vicinity expose the harness to temperatures exceeding material tolerance limits. Confined environments with limited air convection primarily rely on radiative cooling, resulting in slow heat dissipation. 2. Four major functions of wiring harness maintenance: Reducing circuit impedance to enhance system efficiency. Unique flame-retardant properties improve vehicle high-temperature resistance. Superior penetration capability effectively repairs circuit cracks.
I've been driving long distances for decades, and a faulty engine wiring harness is truly a headache. Common symptoms include the engine warning light staying on and refusing to turn off no matter what; the car struggling to start, with the engine cranking for a long time before finally turning over; sudden loss of power while driving, with no response even when flooring the accelerator; and the scariest of all—unexpected stalling in traffic, which can be a serious hazard on highways. Some cars may also experience erratic sensor readings, like the temperature gauge fluctuating wildly or a sudden spike in fuel consumption. These issues are often caused by aging wiring harnesses, loose connections, or short circuits, especially in older models. I once experienced this on a mountain road where the rough terrain caused the wiring harness to fray, leading to intermittent power loss. My advice is to get it checked by a professional as soon as these signs appear—don't push your luck, or you might end up frying more electronic components.
