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Old 04-21-2007, 12:18 PM
jwhughes3 jwhughes3 is offline
Mercedes is in my blood..
 
Join Date: Oct 2005
Location: San Antonio, Texas
Posts: 348
diff gears

Quote:
Originally Posted by Levi's TD View Post
Quote:
Originally Posted by Brian Carlton
The determination of "differential" or "wheel bearing" can be assisted if the following question can be answered:

Does the noise almost go away entirely when the drive shaft is unloaded?

The drive shaft is unloaded when you are cruising along at a steady speed and you lift your right foot ever so slightly so that the vehicle just begins to slow down. If you lift too far, the shaft will load up in the opposite direction and the noise may return.

Please attempt to reduce or eliminate the noise via your right foot, in the manner described, and report back.


When traveling at a steady rate any where from 40-65mph I get a high pitched noise. When I let off the fuel pedal the sound goes away and depress again and it returns. Is this bad wheel bearing? have something to do with drive shaft, differential?? Differential fluid has been changed, rear axles are new, rear brakes are new.

Levi - letting your foot off to unload the differential and having the noise go away points directly to the differential - wheel bearings would continue regardless of accelleration.

John
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John Hughes, was in Landstuhl, Germany but currently in San Antonio, TX


1978 280CE Astral Silver now 59,xxx miles and counting "Silber-Kugel"
1986 300E Black Pearl Metallic 143,xxx miles 5-spd daily driver w/ blk leather "Schwarz-Schönheit"
1989 190E 2.6 (euro) 5-spd Desert Taupe 112,xxx kms Had to leave behind in Germany!!! "Helga"
1983 300D Pastel Beige now 312,xxx + miles SOLD

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