----- Original Message -----
From: "PAUL WENTINK"
To: mailing-list@xxxxxxxxxxxxxxxx
Subject: Re: IML: Rumbling driveline vibration
Date: Mon, 28 Jan 2008 19:19:15 -0500
I don't own a '93, but engine mounts are
suppose to isolate the engine, transmission,
and drive line from the rest of the car. If the
wrong mounts are used, there can be a direct
connection, or "grounding" of the engine to the
frame or sub-frame. If this should occur, the
car becomes like the inside of a drum, and any
sound or vibration is magnified.
Broken mounts typically disconnect the engine
completely from the car, so it is possible for
a noticeable increase in noise or vibration to
occur once replaced, but the correct mounts
should not do this to the extent you describe,
especially in automobiles that are noted for
silence and smoothness of operation. If this
continues after the next set of mounts are
installed, there may be other problems with the
car, such as rough engine, bad c.v. joints, or
u-joints which may have been masked by the
broken mounts. It may be possible that the
position of the exhaust system will change with
the new mounts, causing it to "ground" against
a portion of the car which should be isolated
from it. This would also result in a noise and
vibration condition.
Noises and vibration can have many different
causes, so you may want to refer to the FSM for
your car to see if there is a specific
troubleshooting section or service diagnosis
for this problem.
Paul W.
-----Original Message-----
From: NY3UVL714@xxxxxxx
To: mailing-list@xxxxxxxxxxxxxxxx
Sent: Mon, 28 Jan 2008 9:59 am
Subject: IML: Rumbling driveline vibration
Hello Imperialists,
I've got three questions for the group.
1.
my mechanic recently replaced 3 motor mounts to
correct some on throttle/off throttle driveline
lash in my midnight blue - 1993 sedan. After
the new mounts were installed there was
a noticeable increase in engine
noise, vibration and harshness. Through the
steering wheel I felt strong buzzing vibrations
and could hear the engine working under
throttle with a deep resonant sound. My
Imperial sounded and felt like an older
panel/pickup truck. My mechanic reinstalled
the old mounts and has ordered a different
type.
What went wrong?
2.
My car is a 1993 Imperial that came from the
factory with a plain metal chrome pentastar
hood ornament without the crystalline eagle
insert, no anti-lock brakes and a 3.3 V-6
instead of the 3.8
I wasn't aware of Imperials equipped this way,
none of my literature mentions this equipment
level.
Please tell me more about my car.
3. How do I change my email address on the mailing list?
Big thanks,
Lawrence from San Francisco
------------------------------------------------------------
Start the year off right. Easy ways to stay in shape in the new year.
________________________________________________________________________
More new features than ever. Check out the new
AOL Mail ! - http://webmail.aol.com
----------------- http://www.imperialclub.com -----------------
This message was sent to you by the Imperial Mailing List. Please
reply to mailing-list@xxxxxxxxxxxxxxxx and your response will be
shared with everyone. Private messages (and attachments) for the
Administrators should be sent to iml.webmonster@xxxxxxxxx
To UN-SUBSCRIBE, go to http://imperialclub.com/unsubscribe.htm
Fred Joslin