z****u
发帖数: 134 | 1 貌似是共振，因为高于低于那个转速都没有那种响声。 想问一下大家有类似问题么，
有什么好的解决办法不。
order了一个新kn filter,希望有所改善。 |
z****u
发帖数: 134 | 2 现在开了8w 迈了，想问下需要不需要用high mileage oil?没有漏油，但是比较害怕哈。
【在 z****u 的大作中提到】
: 貌似是共振，因为高于低于那个转速都没有那种响声。 想问一下大家有类似问题么，
: 有什么好的解决办法不。
: order了一个新kn filter,希望有所改善。
|
f*******e
发帖数: 5277 | 3 8w 可能还行吧，保险起见的话可以用
哈。
【在 z****u 的大作中提到】
: 现在开了8w 迈了，想问下需要不需要用high mileage oil?没有漏油，但是比较害怕哈。
|
z****u
发帖数: 134 | |
f****o
发帖数: 4067 | 5 Check engine mount。open hood and record a video of engine bay while you rev
the engine to 2200 rpm. you have to put it in drive and step on brake at
same time. if engine moves as you rev, you have failed mount(s). |
z****u
发帖数: 134 | 6 thx for the reply.
the strange thing is when stationary, the humming sound never appear..
only when driving when i rev to 2k2, then the sound will come.. haiz..
rev
【在 f****o 的大作中提到】
: Check engine mount。open hood and record a video of engine bay while you rev
: the engine to 2200 rpm. you have to put it in drive and step on brake at
: same time. if engine moves as you rev, you have failed mount(s).
|
f****o
发帖数: 4067 | 7 when engine's not reving, there's no torque. When you rev it, mounts should
hold engine still. Assuming mounts failed, that's why you should test them.
this is what i'm talking about. https://www.youtube.com/watch?v=hoDfmowLnes |
b********f
发帖数: 605 | 8 sounds like the ball joint of the suspension system. have the axles checked
by a mechanic. |
