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Old 04-01-2014, 05:26 PM
w123fanman's Avatar
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Join Date: Jun 2011
Location: Atlanta, GA
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w116 300sd vacuum valve and electrical questions

So I noticed this the other day, what is this valve supposed to be connected to and what does it do?

Also a post from another thread I started but felt it could use a new thread for itself, plus I am adding a picture: The fuel gauge and temp gauge were having erratic readings, and the fuel sender had been cleaned recently according to the PO, seeing as these two are bad, should I suspect grounding issues?
Also I noticed on the tach that one of the resistors was cracked, and the tach had also been working rather intermittently, I will replace that resistor but are there any other electrical parts I should replace or should I go ahead and redo all of the resistors and capacitors? In Atlanta there is a very well stocked electrical parts store I can get everything at.
Which brings me to the climate control amplifier, one of the smaller voltage regulators melted, does anyone know if the two small ones have the same value? I plan on repairing the amplifier as well because I would rather not spend $90 for a remanufactured one. YOu can see what regulator I am talking about here:
http://i1230.photobucket.com/albums/ee498/oldskoolfan2/IMG_1166_zpsa71de087.jpg

I'm sure there are other relays and amps that need attention but for now these are the important ones.

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