Hello Accord Gurus,

I am unable to pinpoint the source of this noise from a 93 Accord.

I am kinda interested in Cars and the things under the hood :smile: . But this noise has led me nowhere.

It sounds like mild scrapping. One can hear that when I press the gas pedal. There is no noise when the engine idles (its smooth). The noise doen't come from the engine, but somewhere close to the mount or something.

Can you guys be of help in letting me know the probably cause?

Thanks a ton!

I'm assuming yes, but does it do it both when you are driving and when you are stopped and just revving the gas? Is the car and auto or 5 spd? A little more info is needed.

I'm assuming yes, but does it do it both when you are driving and when you are stopped and just revving the gas? Is the car and auto or 5 spd? A little more info is needed.


Right on! Noise both, while driving and when stopped and idling.

Its Automatic...

Ok, next question, does it happen all the time when you drive and rev, or is it just for the first couple seconds of taking off and revving? I mean is it constant all the time or does it eventually go away after a little time?

Ok, next question, does it happen all the time when you drive and rev, or is it just for the first couple seconds of taking off and revving? I mean is it constant all the time or does it eventually go away after a little time?

Its easy to listen to when its idling and when the gas pedal is pressed. my guess is that is happens only when the gas pedal is pressed (idling, revving and/or while in motion).

Otherwise the engine runs smooth.....

The noise also appears to come from driver side...around the area where the belts are. Car has done 75K miles. The timing belts dont seem to have problem......

Thanks ......

I dont think you understood the question, I think he was asking if the noise occurs constantly while driving or just for a moment during acceleration then goes away.

k...

The noise (is audible &) occurs only during acceleration.

you had a good guess on the engine mount... i would have that checked first. I assumed that you mean the mount on the timing belt/accesories side of the engine. Also, could you describe the scraping noise? im trying to make a mental sound but having no luck

oops, i should have read the above posts better... :screwy: i have another guess too, it might be your alternator bearings going bad? you stated that the noise was not coming from the engine, but by the mount, so that could also be a suspect, just trying to inform you of the possibilites? BTW, what is the mileage on the alternator, or is it the original?

The noise is something like metal parts rubbing...not very loud though!

I suspected the Alternator bearing; Thats replaced as well. Its brand new. The alternator bearing noise more like a clicking noise.

But this noise persists...and its not from the alternator side. More towards the driver side.

listen to your distribitor cap...i bet scratching is in there.

Does it happen the whole time you are accelerating or just for the first instant you push on the gas? It doesn't sound like an engine problem at all. At first I was thinking a loose belt myself, but if it's not that loud, that most likely isn't it. One other thing, does the noise go away once the car is warm? The best thing to do is pop the hood and pull on the throttle to rev the engine. If you don't know what I'm talking about, I can post a pic for you. It could be your throttle cable or throttle body itself if it sounds like it's close.

Yes....the noise occurs during acceleration. I am sure there is some mild noise at cruising speeds, but I am unable to hear it (probably masked by road and wind noise). It doesn't go away even if the car is warm.

It will be great if you can post this pic for me :)

I will also have the alternator / bearing checked up.

It may be your Wheel hub bearing. I had that problem with my Accord recently. It sounds like a engine grind or ruff sounding revving. but this would only happen the faster you go and when hitting the gas. But only when the car is in motion meaning the wheels are turning. It gets louder after time.

The arrow is pointing to the place where the throttle cable connects to the throttle body. All you have to do is start the car, pop the hood and turn that thing where the cable connects. I believe you have to turn it counterclockwise if I remember right. Just give it a couple revs or until you can pinpoint where the sound is. Then let us know.

http://images.cardomain.com/member_images/2/web/458000-458999/458241_24_full.jpg

Any update on the sound yet?

Thanks for the pic.

The noise is NOT coming from the alternator, Distributor, or the wheel hub bearing. The noise source is somwhere below the Engine.

I couldn't get to pin-point the exact location..Its to the right of the circle (in the pic above) and under (?!)

Can you help...

Thanks

Thanks for the pic.

The noise is NOT coming from the alternator, Distributor, or the wheel hub bearing. The noise source is somwhere below the Engine.

I couldn't get to pin-point the exact location..Its to the right of the circle (in the pic above) and under (?!)

Can you help...

Thanks


Is it kind of a squeeling sound?

It like parts rubbing. I am not sure if its metal. There are others that said it sounded like plastic (metal rubbing a plastic part).

It sounds like pebbles inside a tin can....

It like parts rubbing. I am not sure if its metal. There are others that said it sounded like plastic (metal rubbing a plastic part).

It sounds like pebbles inside a tin can....


Water pump bearing???

Does the car run fine other than the sound or can you feel a difference in performance?

The car runs just fine...

Water pump - Does a defect here generate that noise? Should the pump be replaced or is it the bearing?

Thanks again

I didn't hear your noise. Just guess from "pebbles inside a tin can", sounds like a bearing issue.

The waterpump and bearing is one piece.

A failed bearing usually sounds like a squeeking noise, not like pebbles in a tin can. Bearings heat up and melt and usually fuse themselves to the casing around them causing a metal to metal sound. Man this is tough, it's difficult not hearing the sound. You say it sounds like it's below the engine? Are you sure it's just not coming from inside the engine itself. The only thing I can think of that kind of sounds like pebbles in a tin can is maybe a valve knocking.

might be a little off track.

Can this be a problem with the exhaust? Cat converter......(??)

Without listening to the noise, it's very hard to tell what it might be. Could be something loose also.

I have another guess.... it could possibly be either the catalytic converter or the shield. Our van was making the "pebbles in a tin can" noise, and it was pronounced at idle and during acceleration. what our problem was the shield was loose, hope this helps.

Thanks very much guys. Appreciate it.

I will have this checked and replaced....sometime later probably. And update the result as well...

Hello again,

The 'pebbles in a tin can' noise turned out to be timing belt tensioner. I replaced all the belts that go with Timing Belt + Water Pump (now poorer by $800).

Also changed the exhuast system (except the Cat converter.)

Thanks again for all the help!

Any advice / suggestions on removing some rust spots?

good job.

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