What to Do When the Transmission Gears Grind?

2 Answers
DeAlina
07/23/25 8:04pm
Transmission gear grinding usually occurs when the gear is not properly engaged. It is recommended to press the clutch twice to avoid gear grinding. More detailed information is as follows: 1. Gear grinding generally occurs in the transmission: When gears rub against each other, gear grinding happens. Typically, this occurs in manual transmissions. 2. The role of the synchronizer: It is a component that synchronizes a high-speed gear with the gear about to engage in that gear position. Without a synchronizer, a slowly rotating gear is forcibly placed into a high-speed rotating gear, which will inevitably cause gear grinding.
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MacAlexis
08/10/25 6:07pm
I've experienced gear grinding a few times, all caused by not fully depressing the clutch when shifting. When you hear that crunching sound, you must immediately turn off the engine and stop, otherwise the gear wear will become more severe, and the entire transmission could be ruined. Then take it to a professional repair shop for inspection - you might need to replace the synchronizer or gear set, with repairs costing anywhere from a few hundred to several thousand yuan. Prevention is crucial: shift gently, ensure the clutch is fully depressed before operating, and match the RPM properly without forcing it. I've also learned to change transmission fluid regularly during maintenance to maintain lubrication and reduce the risk of gear grinding. This is particularly common with manual transmission vehicles. Be extra careful during the break-in period of a new car - don't rush to race it. Once safe driving habits are developed, you'll rarely encounter this problem.
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