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#1
03-15-2007, 01:24 AM
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Transmission woes....
Ever since I changed my tranny fluid & filter I have been getting a jump when I go from 2 -> 3 & 3 down to 2nd.
I was hoping this would go away quietly after the new old trannie got used to the new fluid, but it hasn't. I did everything to spec right fluid & filter etc. , but I have heard before you should never change old T fluid cause it builds up a "varnish" that the trannie gets "used to". I am now ready to take her in to a Transmission shop I know is honest & capable of working on old Diesel MBs- but does anyone have any good advice prior, or knowwhat this could be??? THanks! AA ...
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'87 924S '81 280SEL Sold -> 81 300SD - 93 300E w/ 3.2 85 300D- 79 300SD 82 300CD 83 300CD - CA 87 190E 5 spd 87 Porsche 924S "..I'll take a simple "C" to "G" and feel brand new about it..." 
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#2
03-15-2007, 10:41 AM
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Be sure your fluid is not overfull.
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 Gone to the dark side - Jeff
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#3
03-15-2007, 10:47 AM
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What do youy mean by a "jump" Is is a flaring issue, or does is seem to from 2nd to third almost instantly?
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RRGrassi 70's Southern Pacific #5608 Fairmont A-4 MOW car 13 VW JSW 2.0 TDI 193K, Tuned with DPF and EGR Delete. 91 W124 300D Turbo replaced, Pressure W/G actuator installed. 210K 90 Dodge D250 5.9 Cummins/5 speed. 400K
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#4
03-15-2007, 10:52 AM
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Hmmm. Jump as in it bangs from 2nd to 3rd? Not a flare? Mine developed a very slight occasional flare after I changed my fluid. I'm going to put in the K-1 spring kit at my next fluid change in another 10K or so. Would the kit also work for a harsh 2-3 shift? Hmm.
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Seth 1984 300D 225K 1985 300D Donor body 1985 300D Turbo 165K. Totaled. Donor Engine. It runs!!! 1980 300SD 311K My New Baby. 1979 BMW 633csi 62K+++? Dead odo
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#5
03-15-2007, 09:19 PM
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Quote:
__________________
'87 924S '81 280SEL Sold -> 81 300SD - 93 300E w/ 3.2 85 300D- 79 300SD 82 300CD 83 300CD - CA 87 190E 5 spd 87 Porsche 924S "..I'll take a simple "C" to "G" and feel brand new about it..."
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#6
03-15-2007, 09:20 PM
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Quote:
...
__________________
'87 924S '81 280SEL Sold -> 81 300SD - 93 300E w/ 3.2 85 300D- 79 300SD 82 300CD 83 300CD - CA 87 190E 5 spd 87 Porsche 924S "..I'll take a simple "C" to "G" and feel brand new about it..."
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#7
03-17-2007, 11:37 PM
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See if the vacuum line to the modulator is still connected. The little rubber connecting hose can be pretty cheesy after 20 years. Easy to bump it and knock it loose while working under there.
__________________
Palangi 2004 C240 Wagon 203.261 Baby Benz 2008 ML320 CDI Highway Cruiser 2006 Toyota Prius, Saving the Planet @ 48 mpg 2000 F-150, Destroying the Planet @ 20 mpg TRUMP .......... WHITEHOUSE HILLARY .........JAILHOUSE BERNIE .......... NUTHOUSE 0BAMA .......... OUTHOUSE
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#8
03-17-2007, 11:43 PM
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Hard shifts are the result of insufficient vacuum to the modulator.
You need a vacuum gauge and some tests to find out the culprit. As mentioned, the first place to look is the hard line that connects to the modulator on the left side of the trans.
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