紧急问: 打开车发动机,听到很大的噪音是怎么回事?

所有跟帖： 

• muffler fell off? -noconfusion- ♂ (45 bytes) () 12/12/2012 postreply 07:56:41

• muffler fell off/ No --- both parked or in motion -pinklemontea- ♀ (0 bytes) () 12/12/2012 postreply 08:29:22

• pulsating or squeaking or something else? -noconfusion- ♂ (91 bytes) () 12/12/2012 postreply 08:56:12

• Could be muffler has hole or crack in it. -小心翼翼的小地主- ♀ (0 bytes) () 12/12/2012 postreply 08:33:35

• likely. If you are handy, jack the vehicle up -Jeepster- ♂ (200 bytes) () 12/12/2012 postreply 08:43:19

• 天气变冷，驱动皮带在起动时会发出噪音. I didn't provide enough info. Thank you all -pinklemontea- ♀ (0 bytes) () 12/12/2012 postreply 10:59:45