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Old 03-09-2011, 06:53 PM
toomany MBZ's Avatar
toomany MBZ toomany MBZ is offline
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Join Date: Nov 2006
Location: central Va
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Quote:
Originally Posted by Salty Dog View Post
I noticed a line on the back of the manifold which goes to a vacuum switch behind the brake booster. Is that possibly the ALDA switch? I remember I had to replace that last year also because of starting & vacuum issues.. but kind of afraid to pop that off without removing the switch from the firewall again..Thanks again. Bruce
That line goes to a switchover valve, which sends another line just like it to the ALDA, a round silver item, circled in red.

That has nothing to do with vacuum, just the opposite, pressure.

Nothing to do with starting either.
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1985 300 D slow on take off..-screen-shot-2011-03-09-5.47.30-pm.jpg  
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