Engine Overview and Common Failures
The weight of the 6G72 engine according to the catalog is 195 kg. The engine number 6G72 is located at the junction of the engine and the gearbox. Oil consumption, excluding the first years of production, is a very reliable engine with a huge resource. Most complaints on the forum are related to excessive oil consumption due to worn rings and caps. The main thing is not to miss the level, as crankshaft bearing rotation is not uncommon here. Floating RPMs are the second most common complaint, caused by a dirty throttle body, idle control valve, broken wiring, or burnt-out lambda sensors. Also, when replacing spark plugs, the intake manifold is removed and it does not always fit tightly. Timing belt breakage - this engine has a very thick timing belt that lasts longer than the recommended 90,000 km. But it is often damaged by oil leakage from the deteriorated gasket of the front block cover. The lifespan of an oil-soaked belt is greatly reduced, and when it breaks, valves are usually bent. Other drawbacks - the ignition system is not the most reliable, hydraulic lifters that are demanding of oil and can start knocking already at 100,000 km, as well as regular coolant leaks, which often cause overheating.