What Causes the Transmission Failure of Geely Emgrand?

[ZaneAnn]

Here are the specific reasons for transmission failure in Geely Emgrand: 1. If the transmission emits a dry metal friction sound, it indicates insufficient oil or poor oil quality. Refill oil and check its quality, replacing if necessary; 2. If a noticeable noise occurs when shifting into a certain gear while driving, it suggests wear on the gear teeth of that gear. Periodic noise indicates damage to individual teeth; 3. Noise in neutral that disappears when the clutch pedal is depressed usually points to issues with the front or rear bearings of the primary shaft or the constant mesh gear. If noise occurs in all gears, it is likely due to the rear bearing of the secondary shaft; 4. Sudden impact sounds during transmission operation often indicate broken gear teeth. The transmission cover should be promptly removed for inspection to prevent further component damage; 5. If noise only occurs when shifting into a certain gear while driving, check whether the meshing gears are improperly matched after confirming other components are intact. Reassembling a new pair of gears may be necessary; 6. If gear collision noises occur during shifting, possible causes include non-separation of the clutch, incorrect clutch pedal travel, damaged synchronizer, excessive idle speed, improper gear lever adjustment, or tight guide bushing. In such cases, first check if the clutch can separate, then adjust the idle speed or gear lever position, and inspect the tightness between the guide bushing and the release bearing.

[VonClayton]

I previously experienced gear-shifting stiffness when driving a manual Emgrand. Actually, common issues fall into just a few categories. For manual transmissions, veteran drivers know the clutch three-piece set is most prone to problems - after about 100,000 km, pressure plate wear causes slipping, making gear shifts shaky. Worn synchronizer rings make gears feel like they're grinding through sand, especially noticeable in reverse. That time I delayed changing transmission fluid until 60,000 km, sludge coated the gears causing direct metal contact - shifting into third produced loud rattling. Automatic transmissions are even more delicate - control modules tend to malfunction randomly, overheating fluid makes solenoids fail, creating jerky shifts like riding a horse. My neighbor's car had clogged valve body filters, which the mechanic said resulted from long-term urban short-distance driving. If you notice rough shifting, first check fluid condition - never force gears, or you might destroy the entire transmission.