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Old 01-11-2000, 01:10 PM
ahannay
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On an '87 190D, where is the vacuum modulator? And what is the black, bell-shaped valve/gizmo on the firewall in front of the battery? I seem to be getting vacuum over to there, but not out of there to the trans modulator (black line).
Thanks.
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Old 01-11-2000, 09:09 PM
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Join Date: Mar 1999
Location: Suwanee, GA, USA
Posts: 4,712
The modulator is located on the transmission. I don't know which of the valves you are talking about, but it is a control valve and will only have vacuum when it is energized.

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