On 7/13/04 9:29 PM, in article
b3d7fae0.0407131829.3e8fa730@posting.google.com, "varkiliy_jar"
<vteslikov@hotmail.com> wrote:

> Hi.
> I'm not a mechanic and havent done anything more complicated than oil
> change, but need to understand this:
> Two kinds of noises:
>
> First:
> 1) metallic trembling noise (guaranteed!) moving from parking spot at
> about 5-10 mph, going backward or forward , going straight ,noise -
> for less than a second ;
> this happens in the morning (car was left overnight), in the evening
> when moving from work parking; any other time I come to complete stop
> with gear in parking and engine stopped; noise is there, if going
> downhill in neutral (my parking spont is nex to the hill) with engine
> running or not running (here, after engine was running for a while
> and brakes work easy, couldns say the same about steering wheel);

I'm not sure I understand everything you said here, but from your
description, it could be the ABS pump charging up the system which is
normal.

>
> Second:
> 2) another kind of noise, but much quiter noise at 50-60 mph
> (constant) as soon as I stop accelerating and RPM drops to 1600-1900
> from 2500; in this case noise is only heard when slightly
> pressing gas pedal (accelerating or maintaining speed going uphill),
> but RPM doesnt change; going to higher RPM gets rid of the noise (like
> if I have to pass noise speed range 50-60 mph,
> accelerating more intense - at 2500 rpm for instance - no such
> noise);

Could be anything. Some suggestions:

- Check the heat shields around the exhaust pipe for looseness or damage. A
noise at a specific RPM can sometimes be a heat shield vibrating.

- Worn brakes. If the noise sounds like metal gently scraping, it might be
the wear bar on one of more of your brakes scraping the rotor.

- Belts. The ribbed accessory belts can make a metallic sounding noise when
they get old and stiff. It sounds similar to a bad timing chain. The little
ribs on the inside of the belt develop little cracks and they start making a
"zing" sort of noise as the cracks move through the ribs on the pulleys.
This noise tends to come and go at different RPMs. If your belts are old
and you see cracking on the inside ribs, try new belts, they are ready to be
changed anyway if they are starting to crack.



>
> Other info:
> 3) no infuence on noise when turning;
> 4) when pressing brakes hard - steering wheel is trembling, so looks
> like worn rotors;
> 5) left front tire worn much more than others;

Have the alignment checked and the suspension checked for wear. Look
especially for a sagging spring or worn ball joint at that wheel. I had a
similar experience on my Acura TL that was caused by a failing upper ball
joint, which in turn was caused by a weak spring (that corner of the car was
an inch lower than the other side). The symptom was as you describe here -
brakes chattering when stopping from highway speed with shaking in the
wheel. After stopping from highway speed, get out and feel the wheels. If
that one is significantly warmer to the touch than the others, you probably
have a failing suspension part or sticking brake caliper at that wheel.

> 6) Honda Service says it's not transmission (since I have extended
> warranty on transmission, I asked them to check it specifically) after
> 15- 20 mins road test;
>
> Thanks for your feedback.
> vj