Clacking sound from 96 Sentra at idle

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User132384 - 22 Sep 2004 20:36 GMT

Hi,

My gf's 96 Sentra has been making a clacking sound at idle, at
all rpm's. It drives fine. No clacking when in gear. Her mech has "no clue"
what the sound is. Anyone have an idea? Belts, maybe? Waterpump ?

Thanks

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Nick - 22 Sep 2004 21:45 GMT

Timing chain tensioner causing slack in the chain possibly.

Nick

> Hi,
>
[quoted text clipped - 3 lines]
>
> Thanks

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E. Meyer - 22 Sep 2004 23:19 GMT

On 9/22/04 3:45 PM, in article
1wl4d.844$6X1.2638695@news4.srv.hcvlny.cv.net, "Nick"
<terzulli@optonline*spa//blows.net> wrote:

> Timing chain tensioner causing slack in the chain possibly.
>
[quoted text clipped - 9 lines]
>>
>> Thanks

I had a '95 Altima that did that. My first thought was the timing chain,
but it turned out to be the disintegrating accessory belt zinging around the
pulleys. How long has it been since you changed the belts?

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User132384 - 23 Sep 2004 00:54 GMT

>I had a '95 Altima that did that. My first thought was the timing chain,
>but it turned out to be the disintegrating accessory belt zinging around the
>pulleys. How long has it been since you changed the belts?

Good question. I asked the gf (it's her car) and she says she doesn't know, may
have never changed them. With the old V belts, a drop of water on the friction
side of the belt would quiet them down for a few seconds. I'll try that with
this flat belt. Maybe it will indicate something. Thanks for the idea.

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Meat-->Plow - 23 Sep 2004 13:20 GMT

>Hi,
>
[quoted text clipped - 4 lines]
>Thanks
>

Clacking at "idle at all rpms" ?? What does that mean?

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User132384 - 25 Sep 2004 00:42 GMT

>Clacking at "idle at all rpms" ?? What does that mean?

In Neutral, at any rpm, it clacks. It clacks at high idle and low idle. With
foot on gas, and off gas.

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Meat-->Plow - 25 Sep 2004 16:01 GMT

>>Clacking at "idle at all rpms" ?? What does that mean?
>
>In Neutral, at any rpm, it clacks. It clacks at high idle and low idle. With
>foot on gas, and off gas.
>

And not when in drive ? That's odd. Is it a stick or auto ?

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User132384 - 26 Sep 2004 00:46 GMT

>And not when in drive ? That's odd. Is it a stick or auto ?

Auto.

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Jon Smith - 26 Sep 2004 03:45 GMT

If it is making a noise when it is not in drive and not when it is drive
you might check the flexplate for a crack or the bolts to the torque
converter could be loose. When the car is in gear the noise goes away.
That would appear to be something that has to do with the connection
between the trans and engine. That would be the flexplate bolts or the
flexplate.

>>And not when in drive ? That's odd. Is it a stick or auto ?
>
> Auto.
>

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Meat-->Plow - 26 Sep 2004 16:10 GMT

>>And not when in drive ? That's odd. Is it a stick or auto ?
>
>Auto.
>

Let me know what it was if you ever get it fixed

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