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  #1  
Old 01-05-2008, 04:49 PM
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Location: Sunrise, FL
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Need insight....trans fluid everywhere

except in the tranny. This is on the 300CD. I have trans fluid in the
vacuum lines and an extra 3 quarts in the crank case. Also, car is not
shutting off, I assume this is due to fluid in the lines.
Is this a failed Vacuum modulator @ the tranny, something else,
or am I dealing with 2 different problems

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81 Mercedes 300SD 289k.......SOLD
82 Mercedes 300CD 252k......slow ride

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  #2  
Old 01-05-2008, 06:17 PM
Craig
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I can only guess that the modulator failed and the vacuum pump sucked out the fluid to the crankcase. AFAIK, that;s the only interface between thos systems.
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Old 01-05-2008, 09:34 PM
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Quote:
Originally Posted by Craig View Post
I can only guess that the modulator failed and the vacuum pump sucked out the fluid to the crankcase. AFAIK, that;s the only interface between thos systems.
I can understand the vacuum pump sucking out the fluid, but where would it dump it into the crank case?
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81 Mercedes 300SD 289k.......SOLD
82 Mercedes 300CD 252k......slow ride

82 mercedes 300 SD...mi Unknown
83 Mercedes 300D ????ksniff..gone too
84 Mercedes 300D 148k........SOLD
85 Mercedes 300TD 386k and holding some one elses project
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  #4  
Old 01-05-2008, 09:38 PM
Craig
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Originally Posted by JackG View Post
I can understand the vacuum pump sucking out the fluid, but where would it dump it into the crank case?
I believe the vacuum pump exhausts to the crankcase.
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  #5  
Old 01-06-2008, 01:11 AM
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correct... it dumps to the crankcase
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  #6  
Old 01-06-2008, 12:51 PM
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The shut-off valve at the back of the IP has a diaphram that, when broken, allows oil to be sucked up into the vacuum lines. I suppose this could be another entry point. I could literally see the oil being pulled up this line when I put the mityvac on it.

The vacuum pump does seem more logical though.

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