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Automobile版 - 2002 Honda civic Metal grinding noise, help please
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话题: noise话题: ac话题: grinding话题: car话题: metal
进入Automobile版参与讨论
1 (共1页)
h********e
发帖数: 1130
1
Sorry can't type Chinese in this computer.
Here is recording link (noise start at 1:25) https://soundcloud.com/hiac-
banks/noise-1-25
Last year I got into an accident, and my primary car is total, so I started
to drive this backup car, a 2002 Honda civic. life is a little bit messy
after the accident, spent a lot of time on the medical/billing, and paid
little attention to this old car until today.
since about 4 months ago, I notice the car is slow to start. Every day I
drove about 0.25 mile in subdivision, then get to local road for 1 mile,
then hit the highway and drive about 20 mile. I feel the car is lack of
power in the first 0.25 mile, like 10-15 mph at most. then on local road, I
can drive 40 mph. and on highway, I can slowly speed up to 60-70, occasional
to 75. Today (about 40 degree) I did some shopping and when I drive off the
supermarket's parking lot, I heard some metal grinding noise from the front
(engine?), my speed is about 10-15mph. That noise is not continuous, and it
seems like the noise is gone when speed go up to 45, or maybe the other
noise (wind etc...) make it less obvious. Once I got home, I park my car,
and start the engine, with ac off, here is my recording.
https://soundcloud.com/hiac-banks/noise-1-25
the engine is about 800rph when it's idle, then I give it some gas, the
speed increase to 1.4k rph then I heard the grinding noise (start at 1:25 in
the recording), the noise is not constant/continuous, if the car is idle,
there is no noise. I also tried the same test with ac turn on. i didn't hear
noticeable difference.
On August 2014 the AC freeze up while I drove on highway, and I heard the
similar metal grinding noise (just much louder and constant). I replaced the
AC system, and also did the oil change, the mileage is 103k at that time.
Now the mileage is 113k.
I wonder if lack of oil change could cause the grinding noise, or it might
be something else, such as Idler pulley bearing, transmission, water pump,
and AC bearings, power steering pump, timing belt? I didn't replace any of
these item (except replacing AC on 2014)
this is an old car, and if the cost to fix it exceed $1000, I probably will
start to look for a new car.
Many thanks!
G********1
发帖数: 1341
2
像是发动机周围的部件发生共振
h********e
发帖数: 1130
3
多谢回复, 当时换AC的时候, 他们把AC的一个部件弄坏了, 后来加个个东西了事。
我回家去看看, 是不是AC的那个部件跟发动机离得太近导致 共振
多谢回复
h********e
发帖数: 1130
4
今天我查了下,
发动机连排气管的一个法兰好像间隙比较大。
http://imgur.com/a/9o4XG
看上去是间隙,但是手放过去没感觉到有排气出来。
这个间隙正常吗?

【在 G********1 的大作中提到】
: 像是发动机周围的部件发生共振
G********1
发帖数: 1341
5
不是很了解车这部分的构造,但感觉不太正常。
我的猜测,供你参考。
螺栓的下面是弹簧,正常情况下弹簧顶起铁片,没有间隙。
现在弹簧断了,造成那个间隙,铁片是活动的,所以会产生尖叫。

【在 h********e 的大作中提到】
: 今天我查了下,
: 发动机连排气管的一个法兰好像间隙比较大。
: http://imgur.com/a/9o4XG
: 看上去是间隙,但是手放过去没感觉到有排气出来。
: 这个间隙正常吗?

1 (共1页)
进入Automobile版参与讨论
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