Engine Overview and Common Failures
The weight of the 1ZR-FE engine according to the catalog is 120 kg. The engine number 1ZR-FE is located at the junction of the block and the cylinder head. Problems of the early years: This engine is considered the most reliable in the series, as there is no capricious Valvematic system here. However, during the first years of production, oil consumption and increased carbon deposits in the combustion chambers were quite common. But later, everything returned to normal. Low timing chain lifespan: Many owners have to replace the timing chain at mileages ranging from 150,000 to 200,000 km. It is recommended to inspect the variable valve timing solenoids, as their lifespan is approximately the same. Oil and coolant leaks: The water pump has a very low lifespan and can leak up to 50,000 km. Oil leakage around the timing chain tensioner is also common, but replacing its gasket helps. Minor breakdowns: Minor problems of this power unit include leaks from under the valve cover, constantly leaking injector seals, periodic VVT-i valve sticking, and fluctuating idle speed due to electronic throttle body contamination.