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#1
05-26-2014, 11:19 PM
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Part Identification
I am attaching a picture of a small black box to the right of the Windshield washer fluid reservoir. I believe there should be several vacuum lines running to it but they are not there.
Can you identify the part? :-) TIA, glenn Last edited by 1987-300TD; 05-26-2014 at 11:32 PM. 
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#2
05-26-2014, 11:52 PM
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that is your overboost solenoid. it's there to prevent a dangerous condition if the wastegate sticks, and gives you more than 15psi of boost... it's a common collector point of soot, rendering the engine very weak... rather than cleaning the soot out, many driver's or mechanics just bypass it, thinking it does not need it...
it does not get any vacuum lines, it gets MANIFOLD PRESSURE hoses, routed through it, to the alda, and the transmission tranducer "blue flying saucer"
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John HAUL AWAY, OR CRUSHED CARS!!! HELP ME keep the cars out of the crusher! A/C Thread "as I ride with my a/c on... I have fond memories of sweaty oily saturdays and spewing R12 into the air. THANKS for all you do! My drivers: 1987 190D 2.5Turbo 1987 190D 2.5Turbo 1987 190D 2.5-5SPEED!!!  1987 300TD 1987 300TD 1994GMC 2500 6.5Turbo truck... I had to put the ladder somewhere!
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#3
05-26-2014, 11:52 PM
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__________________
John HAUL AWAY, OR CRUSHED CARS!!! HELP ME keep the cars out of the crusher! A/C Thread "as I ride with my a/c on... I have fond memories of sweaty oily saturdays and spewing R12 into the air. THANKS for all you do! My drivers: 1987 190D 2.5Turbo 1987 190D 2.5Turbo 1987 190D 2.5-5SPEED!!! 1987 300TD 1987 300TD 1994GMC 2500 6.5Turbo truck... I had to put the ladder somewhere!
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