推荐回答(5个)
您好,油耗跟很多因素有关,如果路况和驾驶习惯相同的情况, 检查下火花塞间隙是否过大,积碳是否过多导致点火不好,这样会增加油耗,需要更换火花塞,喷油嘴是否有滴漏的情况,更换喷油器,气门积碳过多也会引起油耗增加,清洗节气门和发动机积碳清洗,检查相关传感器的工作性能状况,氧传感器、水温传感器、进气温度传感器、节气门位置传感器、空气流量计进气压力传感器等,希望我的回答能帮到您,祝您用车愉快!【汽车问题,问汽车大师。4S店专业技师,10分钟解决。】
汽车油耗增高的原因以及解决方法:
火花塞
汽车点火系包括蓄电池、发电机、分电器、点火线圈和火花塞,点火系统故障是汽车最为常见的故障之一,而火花塞则属于点火系统中故障率较高的零件。火花塞损坏将导致耗油量增加,加油不给力,行驶时怠速发抖。通常,电阻火花塞的寿命为2万公里,铂金火花塞的寿命为4万公里,而铱金火花塞的寿命则能达到6至8万公里。
蓄电池
蓄电池控制车内电路,而电路与油路息息相关。蓄电池一般使用2-3年便会产生亏电现象,从而导致启动电压不足,马达带动引擎无力,使点火能量变低,油耗因此飙升。所以不要以为蓄电池没坏就能继续使用,要想降低油耗必须要定期更换蓄电池。
空气滤芯
一定要定期检查空气滤芯是否堵了,如果进气不畅会增加油耗,没装好可能会影响进气,发动机吸进灰尘、杂质,导致发动机严重磨损,如果选择了劣质的空气滤清器,将增加进气阻力,发动机功率下降,增加油耗,并且很容易产生积炭。空气滤清器的使用寿命,根据当地空气情况而有所不同,但最长不超过2年,车辆行驶距离不超过2万公里就一定要更换一次。
氧传感器
氧传感器是位于发动机排气管上的一个陶瓷元件,用于检控制氧和燃料的比例。氧传感器通过检测尾气指标,反馈给喷油系统数值,直接影响喷油量,失效后油耗上升20%左右。
所以发现油耗增大时一定要检查氧传感器是否失效,可以通过观察传感器颜色辨别是否损坏,通常在8-11万公里时就需要更换。
胎压和轮胎磨损
胎压一般分两种:空载胎压和满载胎压,汽车出厂时都会在油箱盖、B柱或者车门上标注该车的标准胎压,没有的话,车主手册上一定会有。
胎压过低,会使轮胎与地面的磨擦增加,阻力变大,油耗就会上升。还要记得检查轮胎的磨损程度,如果轮胎磨损严重,就会出现打滑现象,油耗同样会增大。
油品和积碳
很多车主不注意油品,质量不好的汽油会使积碳增多,过多积碳会让进气管壁变粗糙,影响进气效果和混合气质量,使油耗剧烈上升。所以汽油质量不可忽视!每半年清理一次积碳必不可少!
您好!
如果感觉车辆费油,首先请专业技师用解码器帮您查看下发动机正常工作的时候各个传感器的数据流是否在正常范围之内!重点看下氧传感器,水温传感器,节气门位置传感器,进气压力或者是空流计的数据!通过数据的显示来判断大体故障方向!
再检查节气门,进气管,气门,以及喷油嘴是否有积碳,做下清理!
检查点火系统是否工作良好,是否由于点火线圈或者缸线老化造成漏电!
检查汽油压力是否正常,喷油嘴是否存在泄漏现象!
希望能帮到您,汽车大师祝您用车愉快!【汽车问题,问汽车大师。4S店专业技师,10分钟解决。】
呵呵,您车是赛欧?就油耗增大,就赛欧发动机这一方面最常见的问题:1.进气及燃油系统积炭,可检查一下,适当做些清洗或加一些燃清洗剂;2.点火系统,分缸线和火花塞检查一下,是否需要更换.3.是自动变速箱的话,是不是该清洗换油了?简单着手,由表及里.
你好,突然费油严重,检查氧传感器,检查水温温控传感器,坏了会影响突然油耗增高。祝你用车愉快。【汽车问题,问汽车大师。4S店专业技师,10分钟解决。】
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