Engine Overview and Common Failures
The engine weight of the 6G74 according to the catalog is 210 kg. The engine number is located at the junction of the engine and the gearbox. The GDI system. Modified engines with distributed injection are not demanding on fuel quality, unlike the common versions of the engine with direct injection system GDI. It's good that the capricious injectors and high-pressure fuel pump can easily be found on the secondary market. Intake flaps. In many versions of this engine, the intake manifold is equipped with swirl flaps, which often get dirty and jammed by the mileage of 100,000 km, and their bolts can come loose and fall directly into the cylinders. Often, this ends up with searching for a contract unit. Bearing rotation. On the forum, you can find many reviews from SUV owners with this engine who had their crankshaft bearings rotated. And mainly this applies to engines before 2009. This engine is very sensitive to the level of lubrication and especially to the condition of the oil pump. Other drawbacks. Weak points of the unit include hydraulic lifters and hydraulic tensioner of the timing drive. They get clogged with oil deposits and may require replacement at 100,000 km mileage. Also, here the engine speed constantly fluctuates due to throttle, MAF sensor or injectors contamination.