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What is usually damaged when there is noise in fifth gear?

2 Answers

DeAniyah

07/24/25 2:33am

First, determine where the noise is coming from. If it's from the engine, check for loose screws or engine knocking. If the noise comes from the clutch area and only occurs in fifth gear, consider whether the bearing is loose. If none of the above applies, then go directly to a 4S shop. For manual transmission noise in fifth gear, please check: 1. Fifth gear driving gear: whether the driven gear is chipped or worn, causing noise. 2. Fifth gear synchronizer: whether it is worn and causing noise. 3. Rollers inside the fifth gear synchronizer: whether the bearing is worn, causing excessive synchronizer clearance and noise. 4. Fifth gear shift fork: whether it is worn, preventing fifth gear from engaging fully, leading to noise. It is recommended to go to a repair shop as soon as possible for disassembly, inspection, and repair of the transmission.

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OGideon

08/10/25 10:09pm

I've been driving manual transmission cars for over a decade and have encountered fifth-gear noise issues many times. During that long-distance trip, this exact problem made me nervous. The noises are usually clunking or squeaking sounds, mainly caused by incomplete clutch engagement or synchronizer wear. Fifth gear being a high-speed gear makes its synchronizer more prone to aging and failure. If you're not careful with your shifting - rushing gear changes or not fully depressing the clutch - you'll damage the synchronizer and hear noises. When transmission oil gets too thick from prolonged use without replacement, insufficient lubrication makes friction noises more noticeable. Loose shift linkage or increased clearance can also cause inaccurate gear engagement. I recommend immediately checking transmission fluid level and color. Do a simple test yourself: listen for noise sources while shifting with the clutch depressed in neutral. Ignoring this could lead to gear damage and eventual costly full transmission replacement. Remember to service every 50,000 km and develop gentle driving habits - avoid sudden acceleration to extend component life. Always prioritize safety: get problems repaired immediately rather than risking driving with issues.

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