Because semi truck engines have to work harder than those in standard vehicles, they are especially prone to wear and tear over time. When engine issues arise, they can quickly lead to costly breakdowns and dangerous roadside emergencies. Recognizing the early warning signs of engine trouble is key to keeping your truck running reliably and avoiding significant downtime. But if you need emergency roadside semi truck repairs in greater Las Vegas, our team at Kaos Truck & Trailer Repairs will show up ASAP to assist. Here are four warning signs of semi truck engine trouble. Loss of Power A sudden or gradual loss of power is a common sign of engine trouble in semi trucks. If your truck struggles to climb hills, accelerate, or haul loads that it previously handled with ease, the engine may be experiencing fuel delivery problems, turbocharger issues, or internal wear. A truck that can’t maintain power puts strain on the engine and affects the efficiency of your routes. Unusual Noises Semi truck engines are loud by nature, but unusual sounds such as knocking, grinding, or hissing should never be ignored. Knocking noises can point to problems with fuel combustion, while hissing may indicate an air leak. These sounds often get worse with time and might potentially lead to severe engine damage if left unchecked. Overheating Problems An overheating engine is always a serious concern. Semi trucks generate massive amounts of heat, and when the cooling system isn’t functioning properly, it can result in warped components or a complete engine failure. Warning lights on the dashboard, rising temperature gauges, or steam coming from under the hood are all indications that the engine is overheating and needs professional inspection. Discolored/Excessive Exhaust Smoke The color and amount of exhaust smoke can reveal a lot about the health of a truck’s engine. Black smoke often points to an issue with fuel injectors or air filters, while blue smoke can signal oil leaks. White smoke may indicate problems with coolant leaking into the engine. Any unusual smoke pattern is a red flag that your engine isn’t running as it should. Mobile Semi Truck Repair in Southern Nevada When you need mobile semi truck repair in Las Vegas and the surrounding area, contact Kaos Truck & Trailer Repair at  702-745-2910  . We’ll show up ASAP to get you back on the road!