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  #1  
Old 09-09-2010, 09:06 PM
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Location: SoCal
Posts: 140
Buzzing part, what is it?

The buzzing sound returned after the vacuum line was plugged. I finally found the culprit. There is a part fwd of the battery with two wire connectors attached to two separate pieces.. The taller of the two, silver in color is vibrating/buzzing to beat the band. It is also rather hot, found out about that the hard way.

I have no idea what it is or what it does.

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1960 190D (college car), gone
1995 E300D, 300 k
2004 Infiniti G35 (spouse mobile)
2003 Nissan Frontier Crew Cab
2007 Jeep Grand Cherokee Overland 3.0L MB diesel, 170K
1978 GMC Classic Motor Home
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  #2  
Old 09-10-2010, 02:58 PM
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Diesel Weasel
 
Join Date: Mar 2010
Location: Lawndale, NC
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Do you have pics?
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Mark in NC

"Spark plugs?...We don't need no stinking spark plugs!"
1985 300SD "Der Silberne Schlitten" 420,000 mi


Wish these were diesel:
2003 Ford Club Wagon 130,000 mi
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  #3  
Old 09-10-2010, 10:12 PM
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I'll get some pics in the morning
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1960 190D (college car), gone
1995 E300D, 300 k
2004 Infiniti G35 (spouse mobile)
2003 Nissan Frontier Crew Cab
2007 Jeep Grand Cherokee Overland 3.0L MB diesel, 170K
1978 GMC Classic Motor Home
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  #4  
Old 09-11-2010, 10:39 PM
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Join Date: Apr 2003
Location: SoCal
Posts: 140
Pics

Large silver object at the right. I put 12vdc to it at the two terminals at the top, and it spins.......sorta.

All the ones I looked at in the junk yard were separate and in line with a hose closer to the engine, but it seems to be the same pump
Attached Thumbnails
Buzzing part, what is it?-pict0005.jpg   Buzzing part, what is it?-pict0004.jpg  
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1960 190D (college car), gone
1995 E300D, 300 k
2004 Infiniti G35 (spouse mobile)
2003 Nissan Frontier Crew Cab
2007 Jeep Grand Cherokee Overland 3.0L MB diesel, 170K
1978 GMC Classic Motor Home
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  #5  
Old 09-12-2010, 06:30 AM
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Diesel Weasel
 
Join Date: Mar 2010
Location: Lawndale, NC
Posts: 648
This is an auxiliary water pump designed as OEM to boost pressure and volume to the heater core, especially at idle. You'll probably find that out this winter. More than likely, the DC motor is failing. If its the same pump motor, remove one and use it.
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Thanks,
Mark in NC

"Spark plugs?...We don't need no stinking spark plugs!"
1985 300SD "Der Silberne Schlitten" 420,000 mi


Wish these were diesel:
2003 Ford Club Wagon 130,000 mi
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  #6  
Old 09-12-2010, 06:34 AM
mach0415's Avatar
Diesel Weasel
 
Join Date: Mar 2010
Location: Lawndale, NC
Posts: 648
Here is a pic of the motor for sale at the FastLane - $261 - ouch!




[IMG]file:///C:/DOCUME%7E1/Owner/LOCALS%7E1/Temp/moz-screenshot-6.png[/IMG]
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Thanks,
Mark in NC

"Spark plugs?...We don't need no stinking spark plugs!"
1985 300SD "Der Silberne Schlitten" 420,000 mi


Wish these were diesel:
2003 Ford Club Wagon 130,000 mi
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  #7  
Old 09-12-2010, 12:46 PM
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Join Date: Aug 2010
Posts: 111
Its not needed on later cars, but the evil servo has additional restriction to flow.
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  #8  
Old 09-12-2010, 01:33 PM
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Waiting for his Model 3..
 
Join Date: May 2008
Location: Springfield VA
Posts: 5,174
$261??? I just replaced one of those on a VW and the part was less then $100.

-J
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1991 350SDL. 230,000 miles (new motor @ 150,000).

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2004 Touareg V10 TDI. 150,000 miles. One of 450.
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  #9  
Old 09-12-2010, 07:12 PM
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Join Date: Apr 2003
Location: SoCal
Posts: 140
Junk yard run............ever MB if wound that had the pump used a 4 bolt pattern to mount it to the pump housing. In all cases this pump was in a different location than mine, usually over the pax inner fender well. I'm not too worried about winter in San Diego so for now I'll just disconnect the leads and if I find in the junk yard I'll replace it. The latest MB I saw there was a 92.

__________________
1960 190D (college car), gone
1995 E300D, 300 k
2004 Infiniti G35 (spouse mobile)
2003 Nissan Frontier Crew Cab
2007 Jeep Grand Cherokee Overland 3.0L MB diesel, 170K
1978 GMC Classic Motor Home
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