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116问答网 > 冷车气门不响热车响冷车正常，热车小油门机油灯亮，大油门不亮，热车气门响。

冷车气门不响热车响冷车正常，热车小油门机油灯亮，大油门不亮，热车气门响。

2025-01-20 02:27:16

推荐回答（1个）

回答1：

机油泵的间隙过大造成的，当机油在冷车的时候机油的粘稠度低可以把间隙填充一部分不会使间隙过大，当热车的时候机油的粘稠度会降低机油泵的间隙不能填充就会有间隙使泵油的能力变低。当热车油门小的时候油泵的转速低油压低所以机油灯亮油门大的时候转速升高机油压力大机油灯就会熄灭。热车时机油压力低气门不能达到很好的润滑气门和气门挺杆就会干磨就会发出响声。

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