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#1
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tranny shifts hard when hot or under load...
Hello all,
My transmission shifts pretty smooth when cold (love the feeling); but hard (slamming/thumping) once the engine's hot (or tranny fluid is hot), or under load (light hill or with passengers) - especially the 3-4 shift. I've tried to adjust the vacuum modulator CCW one slot - it helps but I don't think it's gonna cure the problem. Could someone please help ? Any comments are greatly appreciated! TIA, Frank. P.S: It's an '86
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'86 560SEL | Silver Ext. / Blue Int. | 201K miles (Apr. 05) | 204K miles (Feb. 06) Last edited by sjcruiser; 01-13-2004 at 07:48 PM. |
#2
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sjcruiser, don't know what year you have but try the link I have attached and scroll down to transmissions. Some good information (and pictures)
CLICK HERE
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BENZ THERE DONE THAThttp://www.peachparts.com/shopforum/...c/progress.gif 15 VW Passat TDI 00 E420 98 E300 DT 97 E420 Donor Car - NEED PARTS? PM ME! 97 S500 97 E300D 86 Holden Jackaroo Turbo D 86 300SDL (o\|/o) |
#3
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>>The B2 band servo piston has been redesigned, reducing the loss of pressure during release as part of the 3-4 shift<<
Interesting fact... what's the symptoms when this happens ? As stated above - the roughness is mostly in 3-4 shift. Another thing that I observed is that the economy gauge is pretty sensitive with throttle possition - on a moderate acceleration, it would move to bold red area (possible vacumm leak here ?) Anyone ? Steve ? Thanks again, Frank.
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'86 560SEL | Silver Ext. / Blue Int. | 201K miles (Apr. 05) | 204K miles (Feb. 06) |
#4
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I have this problem too- it's bloody annoying! When the car is really warmed up (after an hour or so of driving) the shifts are smoother again like when cold.
Very odd...
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1993 320TE M104 --------------------------------------------------- past: 1983 230E W123 M102 1994 E300D S124 OM606 (x2) 1967 250SE W108 M129 1972 280se 3.5 W108 M116 1980 280SE W116 M110 1980 350SE W116 M116 1992 300E W124 M103 1994 E280 W124 M104 ---------------------------------------------- "music and women I cannot but give way to, whatever my business" -Pepys |
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