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#1
02-11-2014, 02:01 PM
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I cant find where vacuum hose is supposed to go..
1997 e420 small vacuum switch on front of motor. it has 3 small vacuum ports and 1 electrical connection, the ports are marked 1, 2, and 3. the #2 goes somewhere under the intake and the #3 goes to the egr, the #1 is missing and i cant find where it is supposed to go. any help would be appreciated. I cant find any diagram that shows this for some reason.
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#2
02-11-2014, 04:44 PM
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__________________
 1990 190E 3.0L
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#3
02-12-2014, 02:38 AM
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it might be a vent,and have nothing attached.
__________________
1999 w140, quit voting to old, and to old to fight, a god damned veteran
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#4
02-15-2014, 10:58 PM
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you are correct, oldsinner. The vacuum diagram on the passenger side engine bay seemed rather simplistic, but it is correct, and it shows only 2 lines, but that isnt the egr, its the secondary air switch
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