You've tried changing the fluid? Using Mobil 1? I seem to remember your saying
the rebuilder had told you not to use Mobil 1 which seems strange to me since
so many of us (myself included) have had excellent luck with it.
If it occasionally works I'd guess varnish in the valves. IIRC you don't drive
a whole bunch. Assuming thats true and assuming you're not using Mobil 1 thats
the first thing I'd do, then go out and drive the stink out of it. Maybe some
of the magic elixer somebody else mentioned. I know you don't believe in better
living through chemistry but if the problem is really a sticky valve and not a
component failure chemistry is the way to go...
-Curt
From: LarryT via Mercedes <mercedes@okiebenz.com>
To: Mercedes Discussion List <mercedes@okiebenz.com>
Sent: Friday, December 5, 2014 3:32 PM
Subject: [MBZ] AT Does not engage 1st
Hello --
About 4 years ago I bought one of Rusty's rebuilt AT''s. It was
fine until about 3-4 months after the 2 year warranty expired when it
stopped engaging 1st. it occasionally works but mostly it doesn't. The
kick-down works perfectly for the 4-3 shift.
I asked the list when it 1st happened and rec'd a couple of
suggestions - the thing that baffles me the most is that it works for
4-3 but not for 2-1.
It's been a long time since I've been inside a AT and I can't think
of what might be the problem. Maybe dirt in the valve body? maybe a
bad solenoid or something?
any ideas?
Thx
LarryT
91 300D
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