What Causes Abnormal Noise in a Chevrolet Engine?
2 Answers
Chevrolet engine abnormal noise is caused by: 1. Excessive clearance between the piston and cylinder wall; 2. Over-tight piston pin components or connecting rod bearings; 3. Excessive clearance between the tappet and its guide hole; 4. Wear on the cam profile of the valve; 5. Damage to the camshaft timing gear or loose fixing nut; 6. Crankshaft damage or loose piston pin bushings. Chevrolet is a brand under General Motors in the United States, offering sedans, SUVs, sports cars, pickup trucks, and new energy vehicles. Taking the Chevrolet Monza as an example, it is a compact car with a length, width, and height of 4630mm, 1798mm, and 1485mm respectively, and a wheelbase of 2640mm.
I've been driving a Chevrolet for many years, and engine abnormal noises should never be taken lightly. Common causes include bearing wear, especially when the crankshaft or connecting rod bearings age, which can produce a creaking sound; loose belts or deformed pulleys may also cause harsh friction noises, like the sound of a belt slipping; excessive valve clearance is an issue that often leads to a ticking noise when the engine is warm; and worn piston rings can produce knocking sounds at idle. Additionally, broken engine mounts can introduce extra vibration noise. None of these are minor issues, so I recommend going to a 4S shop immediately for inspection and diagnosis—don't wait for a small problem to ruin the entire engine. Regular maintenance like changing the oil and filters can prevent problems, and don't force the car onto the highway if it's not running well. Safety first.
