update.
So yesterday I put in some sea foam, shifted thru the gears, tried to
drive it but still no upshift, let it run a while during which I shifted
thru the gears with the brake on. Pulled the pan, not much crap in
there, pretty clean actually although I did notice a small little chip
of plastic about an 1/8th of an inch long. Changed the filter. Put it
back together and took off and it shifted! Drove it a couple of miles,
back to the house. Tranny shifts very hard and I have a leak in the acc
system, I unhooked that and plugged off to see if it made a different.
Went back out, wont upshift again!!!!!!!! I did not even turn the car
off. Pulled back in driveway, put that vacuum line back on, back out,
would not shift, back to driveway and back out again. It shifts!!
Drive it a few miles no problem. Get back home, check vacuum system,
VCV on IP working, modulator not holding vacuum. Back in car , it
shifts so I need to replace the modulator. Shut if off. Then put the
radio in it for the kid later that evening, started it up, DOES NOT
SHIFT again!!! WTF??? I am just about ready to yank the tranny and swap
it out AGAIN. What the heck could be causing this intermittant
problem? Its got to be something sticking in the governor. Its wierd
why it started shifting after a filter change but now back to no shift.
Also, it seems like it might actually be in 2nd, because if I manually
shift it down it drops a gear, then back to D I cant really feel it
shift to 2nd but if I drop it back to low again, it drops back to
first. Could the hard shifting from the modulator be causing it to
stick? I dont see how.
On 9/11/2011 4:18 PM, Curt Raymond wrote:
If you recall back at Christmas 2007 or so I had this EXACT problem with my
Dakota. My wife had to drive 10 miles from work to home in 1st gear. I used my
topsider to pull about a quart of fluid out and added a quart of Lucas magic
transmission fluid which looks/smells/feels like thick ATF. I drove it around
in 1st for awhile and left it overnight. The next morning (after tons of doom
and gloom posts on here) I drove it around and found if I slipped into neutral
at speed it'd shift into 2nd. Then eventually 3rd. Then after awhile 4th and it
started acting fairly normal.
After Christmas I had a fluid/filter change and it drove fine for another
20,000 miles.
-Curt
Date: Sat, 10 Sep 2011 16:58:41 -0500
From: "Kaleb C. Striplin"<ka...@striplin.net>
To: Mercedes Discussion List<Mercedes@okiebenz.com>,
davesl...@okiebenz.com
Subject: [MBZ] transmission no upshift
Message-ID:<sig.22343a5fcb.4e6bdd91.5080...@striplin.net>
Content-Type: text/plain; charset=ISO-8859-1; format=flowed
Today I hooked my gauge to the operating, regulating (not working or
modulator) port and I get no pressure. According to the semi useful
ATSG book, that means pull the governor and clean out. I dont see any
way of doing this on a 190D without pulling the trans. In fact, I just
tried to pull one of a bad trans that was out of the car and I could not
do it either. I just could not get a couple of c clip things out I
needed to, probably dont have the tools for it. Anyway, I have several
spare trannies laying around but before I do a swap for the 3rd time on
this car, would some of that trans X or something like that potentially
free up the governor? It appears the weights spinning around move a
valve in and out, I assume the valve is sticking. I know that trans x
might work with a stuck valve in the valve body but was not sure if it
might help this situation. Any other ideas?
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