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Car Forum / Ford / Ford Trucks / June 2006

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Motor mount vibration

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Wolfie 31 - 14 Jun 2006 02:23 GMT
I have a 95 Ford Aerostar. The engine had bad motor mounts so I replaced
them with ones I got at Advance auto parts... well I was shocked...
literally The Vibration was 10 times worse then when I replaced them.
The Vibration in the steering wheel was horrible.. it did die down
conciderably but there is still major vibration under accelleration and
idle.. why would it do this ?
David M - 14 Jun 2006 10:24 GMT
> I have a 95 Ford Aerostar. The engine had bad motor mounts so I replaced
> them with ones I got at Advance auto parts... well I was shocked...
> literally The Vibration was 10 times worse then when I replaced them.
> The Vibration in the steering wheel was horrible.. it did die down
> conciderably but there is still major vibration under accelleration and
> idle.. why would it do this ?

Most likely the real problem has nothing to do with motor mounts.

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David M  (dmacchiarolo)
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SnoMan - 14 Jun 2006 13:06 GMT
>Most likely the real problem has nothing to do with motor mounts.

I agree unless mount is defective or improperly install.
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The SnoMan
www.thesnoman.com
lugnut - 14 Jun 2006 12:57 GMT
>I have a 95 Ford Aerostar. The engine had bad motor mounts so I replaced
>them with ones I got at Advance auto parts... well I was shocked...
>literally The Vibration was 10 times worse then when I replaced them.
>The Vibration in the steering wheel was horrible.. it did die down
>conciderably but there is still major vibration under accelleration and
>idle.. why would it do this ?

I bought a set from them for my F150 w/5.0L when I replaced
the pan gasket.  Even though they were a bolt in fit, it had
a vibration at idle that was unacceptable and under power,
it had a vibration I had never felt in a V8.  I got the
boxes out of the trash and double checked the #'s.  The ones
they sold me were for earlier models than my truck.  I
reomved them and went back for the correct ones.  The
correct mounts are more than double the price and look just
like the incorrect mounts but, there is no vibration that
you can feel with the specified part number.  I can only
assume that the earlier model mounts are made of a much
harder material and transmit more vibration.

Lugnut
lugnut - 14 Jun 2006 12:59 GMT
>I have a 95 Ford Aerostar. The engine had bad motor mounts so I replaced
>them with ones I got at Advance auto parts... well I was shocked...
>literally The Vibration was 10 times worse then when I replaced them.
>The Vibration in the steering wheel was horrible.. it did die down
>conciderably but there is still major vibration under accelleration and
>idle.. why would it do this ?

I forgot to mention that many of the OEM mounts are oil
filled to damp vibration.  Some inexpensive replacement
mounts for the V6 are not oil filled to damp the vibration.
The oil filled mounts are much more expensive.

Lugnut
djdave - 14 Jun 2006 14:25 GMT
Just a few ideas...
Misfiring?
Detonation?
Bad Harmonic Balancer?
Bad torque converter?

>I have a 95 Ford Aerostar. The engine had bad motor mounts so I replaced
>them with ones I got at Advance auto parts... well I was shocked...
>literally The Vibration was 10 times worse then when I replaced them.
>The Vibration in the steering wheel was horrible.. it did die down
>conciderably but there is still major vibration under accelleration and
>idle.. why would it do this ?
Jeff Strickland - 15 Jun 2006 04:05 GMT
Those are all good points, but I'd go with something related to the motor
mounts since the problem change dramatically when the mounts were replaced.

> Just a few ideas...
> Misfiring?
[quoted text clipped - 8 lines]
>>conciderably but there is still major vibration under accelleration and
>>idle.. why would it do this ?
Wolfie 31 - 15 Jun 2006 16:24 GMT
Thanks for y'alls advice .. I concur it is motor mounts.. due to the
fact the problem worsened.. I also didn't know about The difference in
quality as I was never given a choice.. just that that was the part and
thats what I was given . whereas , on other parts there is usually a
good , better and best .  So I basically learned a expensive lesson.

Thanks again.
Doc - 16 Jun 2006 19:12 GMT
I would stick with the motor mounts. I had a 76 Pinto once and put a 302 in
(not an easy task) and I had a vibration while at idle and worse during
accelleration. The culprit was the starter hitting the cross member. So I
would check to see if these are the right mounts for this van.

> Thanks for y'alls advice .. I concur it is motor mounts.. due to the
> fact the problem worsened.. I also didn't know about The difference in
[quoted text clipped - 3 lines]
>
> Thanks again.
Wolfie 31 - 17 Jun 2006 02:45 GMT
Thanks Well they matched the ones that are on there, but you never know
.
 
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