What Causes the Timing Chain Noise in Geely Emgrand?
2 Answers
There are two main reasons for the timing chain noise in Geely Emgrand: one is timing chain wear, and the other is tensioner failure. Timing chain wear: The timing chain of the engine will wear out with use. Over time, gaps will appear, causing noise during operation. If not addressed promptly, it may lead to chain skipping, which can damage the engine. Therefore, it is recommended to replace it. Tensioner failure: Tensioner failure causes the timing chain to shake and produce impact noise. Worn tensioner pulley bearings or an overly tight tensioner can also result in timing chain noise.
A couple of days ago, my cousin's Emgrand had the same issue, and I accompanied him to the repair shop to watch the mechanic disassemble it. The mechanic said that chain noise is mostly due to insufficient oil lubrication, and suggested checking if the oil dipstick is below the minimum line. Using oil that's too thin is also not advisable; the Emgrand requires 5W-30 oil. If the chain has worn to the point of producing metal shavings, then the entire set needs to be replaced, including the gears and tensioner, with material costs over a thousand and labor costs even higher. My brother-in-law's car was left unattended for too long, causing the chain to skip teeth and bend the valves, resulting in over eight thousand in engine repairs. If the noise sounds like a bicycle chain rattling, get it checked immediately!
