【Fault description】
Normal driving when the engine issued a "rustling" abnormal sound. After several find no reason to find. The car and traveled about 2000km, the sound intensified and turned heavy.
【Inspection process】
Will turn to the bridge after the start of the engine lift, turn the steering wheel with a metal rod auscultation, found abnormal sound from the steering booster; check the power steering tank, which has no oil; plus enough to help the oil, test, There is a reduction, but the turn is still very heavy. Decomposition steering booster view, the original bearing which has been damaged.
【Fault Analysis】
When the car is turning, the steering booster will produce a high oil pressure and send it to the steering machine to help. At the same time, the booster itself is also dependent on the lubrication of oil. The car as a result of long-term unchecked, filling the oil, resulting in insufficient fuel, their poor lubrication and the emergence of "rustling" sound, because this time did not find the cause of the problem to be resolved, and finally continue to drive the failure caused.
【Maintenance】
Replace the new steering booster, plus enough to help the power of oil, test, the fault is excluded.