Quote:
Originally Posted by David Tilston
This is the best picture I could find of the mirror on The Limo.
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Good news! That's not the one I described earlier.
Tap the top of the mirror housing gently with the palm of your hand to see if something is obviously loose or cracked. If it seems ok, then you will likely improve the mirrors vibration problem by removing the panel on the interior side of the mirror and check that the retaining nuts are snug and have not broken through, Inspect the door frame and mirror area for cracks.
Check to see if the vibration is mitigated by rolling the window all the way up, if so the problem is in the door.
You should check the frame around the window to see that it is snug against the body side of the opening. If not, you can gently pressure it inward a bit with the window up and the door open then it should fit tighter when closed.
Many times you can mitigate both vibration and wind noise by thoroughly cleaning the door gasket and spraying it with silicone spray.
If everything appears fine or you have tightened all three nuts and the vibration remains, then check to see if the pivot point is worn or loose.
Tap the mirror itself with your fingertips if it vibrates or moves around without the housing or frame moving then it has internal problems.
the inside mounts are screwed in, usually with 3 or 4 scews. the mirror face is removable but it is difficult and often results in breakage.
It has been a while since I worked on one exactly like yours, so eventhough much of what I've said is accurate some may not apply, you may need a repair manual for more details.