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#1
12-27-2007, 02:14 PM
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Tranmission Help
Hello, I just purchased an 1981 300D that I'm having some transmission problems with. When I first start the car when its cold and put it into gear nothing happens. The car just sits there, it doesn't matter what gear I try. If I rev the engine the car will start trying to move a little, then after about 5 to 10 minutes of revving the engine at about 2k rpms the transmission will jerk and go into gear. From the point the car will drive but has trouble shifting (it waits a long time to shift gears and sometimes I have to move the shiftier between 2 and S to get it to shift). It also slips sometimes while accelerating. I do know the car has a few vacuum issue (the car won't turn off with the key). Do you guys think this might be a vacuum problem, or is there something wrong with the transmission. The fluid level is full and nice and clean. Once the car gets going on the highway etc its fine. Any help would be great.
Thanks, Cory. 
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#2
12-27-2007, 06:11 PM
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Vacuum is not the problem
Vacuum is used only to modulate, (moderate) the shifting. If you remove the vacuum, by pulling the vacuum line at the transmission modulator valve, if the transmission is in good condition it will give you very harsh shifts. If your transmission is very tired, and they a get that way eventually at about 2 to 300,000 miles a rebuild or a replacement transmission might be necessary. Just make sure that your fluid and filter are as good as you think they are. A new filter and 7 or 8 quarts of brand new Dextron II can do wonders. I have also found that adding a quart of Lucas Automatic Transmission fluid has helped my transmission a lot. If you decide to add a quart of Lucas, make sure that you pull a quart of the existing fluid out first. Over filling is not good on any transmission.
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Junqueyardjim Christianity, if false, is of no importance, and if true, of infinite importance. The only thing it cannot be is moderately important. C.S. Lewis 1983 Mercedes W123 240D 4 Speed 285,000 on the road with a 617 turbo, beautiful butter yellow, license plate # 83 240D INDIANA 2003 Jaguar Type X, AWD. beautiful, good mileage, Mom's car, but I won't let her drive it!
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#4
12-27-2007, 09:59 PM
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Are you sure the level is good? Is there a good solid bead of fluid all the way to the full area? Not just residue it has to be a bead.
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-E300d '99 350k -Suburban '93 220k -TDI Jetta '03 350k Sold -F250 '96 7.3 -Dodge Ram 12V -E320 '95 200k -E320 Wagon 1994 155k -300d Turbo '87 187k miles -E320 1994 200k -300d Turbo '84 245k (sold to Dan62) -300d Turbo '84 180k -300sd '80 300k -7.3 Powerstroke Diesel 15P Van 500k+ miles -190d '89 Non Turbo 2.5 5cyl 240k (my first MB) Tom's Imports of Columbia MO Ruined the IP in changing leaky delivery valve O-Rings - Refused to stand behind his work. Mid-MO MB drivers-AVOID Tom's.
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