Why is the car engine making a loud ticking sound?

[HoldenFitz]

The loud noise from the engine can be attributed to two main reasons: aging or loosening of the engine mounts and an overly rich air-fuel mixture. Here are detailed explanations for these two issues: 1. The engine mounts are rubber blocks placed between the engine and the car frame. Their purpose is to reduce vibrations and provide cushioning during engine operation, as well as to secure the engine in place. If these mounts become aged or loose, the engine may start to shake, and in severe cases, produce abnormal noises. The solution is simply to replace the old mounts with new ones. 2. When the engine's air-fuel mixture is too rich, it becomes difficult to accelerate after starting, the engine runs unevenly, black smoke comes out of the exhaust pipe, the engine makes abnormal noises, engine power decreases, and fuel consumption increases. This is often related to carbon buildup or a clogged air filter.