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Old 03-16-2002, 11:47 PM
The Beast
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Vacum sucking sound

87 300SDL, everytime I start it up I get a sucking sound on the under the passenger side dash. Eventually it disappears but its becoming worse.

How do I attack this?

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Old 03-17-2002, 01:09 AM
The Warden's Avatar
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Join Date: Mar 2002
Location: Pacifica (SF Bay Area), CA
Posts: 2,946
How are the vacuum lines? Are there any that are cracked, not connected properly, etc?

Offhand, it sounds like either there's a vacuum leak or an intake leak, if it's on that side of the car.

Are you sure it's actually coming from under the dash, or just on that side? Any chance it's coming from the engine compartment? Maybe something on the firewall on the passenger's side...

Hope that helps some...good luck!
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2001 VW Jetta TDI, 5 speed, daily driver
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Previous oilburners: 1980 IH Scout, 1984 E-350, 1985 M-B 300D, 1979 M-B 300SD, 1983 M-B 300D
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Old 03-17-2002, 08:58 AM
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Join Date: Sep 2001
Location: Concord, MA
Posts: 603
Wink That strange sucking sound??

Maybe Ross Perot is preparing for another run in '04!!! (Sorry I cant be much help )

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1984 300TD Wagon, 407,800 mi (current daily driver)
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