Why is the Leiling engine so noisy?

[OJudah]

There are many reasons for the loud noise of the Leiling engine, such as engine parts wear, muffler aging, poor lubrication system, excessive carbon deposits, etc., which can all generate noise. By adding shock-absorbing plates and sound-absorbing pads, the road noise and tire noise of the engine can be effectively solved. The Leiling is a model under GAC Toyota Motor Co., Ltd., with body dimensions of 4640mm in length, 1780mm in width, and 1455mm in height, and a wheelbase of 2700mm. In terms of appearance, the Leiling adopts the North American version styling of the car series. The front face design has increased lines compared to the old model, with raised front fenders on both sides, and the headlights have been changed to a hook style. The overall rear styling has been slightly modified, with a black horizontal chrome strip running through the taillights on both sides, and the lower black surround wrapping around the rear, changing the previous purely family-oriented image.

[VanJulian]

My Leiling has been making a loud noise, sounding like a tractor, after driving it for a while. I looked it up, and it could be due to several reasons: First, the engine oil might be insufficient or too dirty. If the oil is low or contaminated, engine parts wear out quickly, causing a rumbling sound. It's best to check the dipstick immediately to see if an oil change is needed. Second, there might be an issue with the belts—either the fan belt or the alternator belt could be loose, worn, or broken, leading to squeaking or clicking noises. I’ve encountered this issue before. Third, bearing wear, such as a faulty water pump or pulley bearing, can cause loud noises due to poor rotation. Fourth, an exhaust system leak—if the exhaust pipe is damaged, it can produce a popping sound, which is quite dangerous. Fifth, an ignition system problem, like worn spark plugs or coils, can cause uneven combustion, leading to engine knocking. I recommend not delaying and taking it to a professional shop soon for a diagnostic scan to prevent minor issues from turning into major repairs.

[DiDonovan]

I've been repairing cars for over ten years, and the issue of the Levin engine being loud is quite common. Often, it's just minor problems that can be easily fixed. The most frequent causes are loose or worn-out belts, which start squeaking over time—simply tightening or replacing them quiets things down. Oil-related issues are also common; low oil levels make the oil pump louder, and if the oil is too thin, insufficient lubrication causes friction noise—switching to the right oil solves this. Another major culprit is exhaust system leaks, which get noisy when connections loosen or holes develop, especially noticeable during acceleration. Additionally, worn bearings or pulleys can cause unusual noises due to uneven rotation, requiring inspection and replacement. For daily driving, remember to stick to regular maintenance—checking oil and belts every 5,000 kilometers can prevent many noise issues. If you hear unusual sounds, don't panic; pull over to inspect or drive to a shop for diagnosis.

[Baker]

I just bought a Corolla recently, and the engine roared like thunder when driving on the highway, which scared me. Simply put, it could be a fluid issue. Insufficient engine oil or not changing the oil for too long can cause the sound to amplify—try topping up the engine oil. Belt aging is very common; if cracked or loose, it can squeak and affect the driving experience. Exhaust leaks are another reason—a damaged tailpipe can cause a whooshing sound, especially noticeable at high speeds. A failing ignition system, such as worn-out spark plugs causing poor combustion, can lead to loud vibrations. Always pay attention to the dashboard for warning lights while driving. If you hear unusual noises, slow down and pull over immediately to check—safety first.