换engine oil后 - 噪音问题

换engine oil后，车engine盖子下右边发出有节奏的彭彭声，听起来象motorcycle的声
音，但音量小些。有懂行的知道会是what problem吗？

The car didn't have this kind of noise before oil change, is it pos*****ile
that some damage was done during the oil change?

Thanks for your advice!

所有跟帖： 

• 声音这个事儿比较难形容 -biglow- ♂ (70 bytes) () 04/29/2013 postreply 10:48:05

• check if engine oil cap is on and tight -giddyup- ♂ (0 bytes) () 04/29/2013 postreply 12:02:18

• 回复：换engine oil后 - 噪音问题 -tyrbl2000- ♀ (202 bytes) () 05/04/2013 postreply 11:51:41