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Old 04-20-2012, 07:19 PM
drgreenthumb's Avatar
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Join Date: Apr 2007
Location: Denver, CO
Posts: 152
Wiring diagram for resonance valve control on 95 E300D

I had the intake apart a few weeks back and want to make sure I have the connectors on propery. I am looking for wire colors going to the electricl switches that control resonance flaps in the intake. The switches are located under the intake. There are two connectors and I am concerned I erversed them. Thank you.

95 E300 Diesel 200K
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Old 04-20-2012, 10:08 PM
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Join Date: Jul 2003
Location: Northern Virginia
Posts: 1,073
do this

The flap on the crossover pipe actuates at low rpm and the flap on the intake actuates when rpms exceed 3500. Hook up a long piece of vacuum hose to the crossover flap and lay the crossover on top of the engine. Connect one of the electrical plugs to one side of the switch and start the engine. move the throttle linkage and watch the flap on the crossover pipe. If it opens at a low rpm, you've got it right. If not, plug the connector into the other side of the switch.
2009 E320 Bluetec 117,000
1995 E300D 306,000 sold
1996 Ford Taurus LX 130,000 Sold
1985 300TD Still 225,000
2016 Ford Fusion 24,900
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Old 04-23-2012, 10:30 AM
oldoneton's Avatar
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Join Date: Oct 2008
Location: s.e. mich
Posts: 40
is this what you want
Attached Files
File Type: pdf 95 300d engine performance circiuits.pdf (79.1 KB, 222 views)

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