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What Causes Abnormal Noise When Shifting Gears to Start a Car?

2 Answers

VonElla

09/05/25 6:01am

Possible causes of abnormal noise when shifting gears include: incomplete clutch disengagement (clutch pedal not fully depressed), loose transmission linkage, severely worn clutch disc, damaged pressure plate, gear collision during shifting, fractured gear teeth causing meshing impact, or improper gear engagement. Solutions for abnormal gear shifting noise: Fully depress the clutch pedal; inspect and tighten the linkage mechanism; replace damaged clutch components; check clutch for incomplete disengagement; secure any loose shift lever (including rubber bushings). Maintenance recommendations: Regular inspections: Periodically examine, clean, lubricate, adjust or replace relevant automotive components to maintain vehicle cleanliness, ensure proper technical conditions, eliminate potential hazards, prevent malfunctions, slow deterioration, and extend service life. Lubricant application: Use appropriate automotive/mechanical lubricants (liquid or semi-solid) to reduce friction, protect components, and provide lubrication, cooling, rust prevention, cleaning, sealing, and cushioning effects for vehicle parts.

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DaisyFitz

09/17/25 6:24am

My old classic car used to make annoying creaking noises when starting off. Gear shifting noises are mostly due to severely worn clutch plates - slipping after engaging gear causes a whining sound. It could also be gaps between transmission gears that create clunking noises when loose. Alternatively, the aging and slackened belt near the engine might produce high-pitched squealing under heavy initial tension. For diagnosis, I've tried depressing the clutch to listen for sound changes - if the noise varies with speed, it's likely drivetrain issues. Timely repair is crucial since neglect accelerates overall system wear, making part replacements costlier. Regular maintenance like transmission fluid changes can prevent these - I get it checked every 20,000 km.

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Can You Release the Clutch Directly When Shifting from First to Second Gear?

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