Why is the CT5 engine so loud?
2 Answers
CT5 engine being very loud is due to the use of direct injection technology in this engine. Engines equipped with direct injection technology have high-pressure fuel pumps, and the "clicking" sound produced by the high-pressure fuel pump during operation is a normal phenomenon. An engine is a machine capable of converting other forms of energy into mechanical energy. It can refer to both the power generation device and the entire machine including the power unit. Types of engines include internal combustion engines, external combustion engines, gas turbines, and electric motors. Taking the 2021 Cadillac CT5 28T Technology model as an example: it is a midsize 4-door 5-seater sedan with a length, width, and height of 4924mm, 1883mm, and 1453mm respectively, a wheelbase of 2947mm, equipped with a 10-speed automatic transmission, and a top speed of 240 kilometers per hour.
I've been driving the CT5 for a while, and one time the engine suddenly made a terrifying noise that made my heart race. After some thought, it might be due to excessive carbon buildup in the engine, causing poor combustion and rough piston operation, leading to a rumbling sound. Also, low engine oil levels reduce lubrication, increasing friction between parts and naturally making the noise louder. Additionally, if there's a crack in the exhaust pipe causing a leak, the noise can double and enter the cabin—I've personally experienced this, especially in winter when it's more prone to issues. A loose or aged belt can also produce squeaking noises, particularly during startup. If you notice any abnormal noises, don't delay—head to a professional shop for a check-up immediately. Safety is not something to take lightly; don't wait until you're stuck with a repair bill over 3,000 yuan like I was. Remember to change the oil and clean carbon deposits every quarter to prevent problems before they arise.