不确定声源很难猜，确定了声源不用猜，曾经的一辆老车EGR软管年久破裂，在给油时会由明显声响。

来源: Oneshotkill 于 2016-02-22 20:36:08 [旧帖] [给我悄悄话] 本文已被阅读：次

WENXUECITY.COM does not represent or guarantee the truthfulness, accuracy, or reliability of any of communications posted by other users.