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  #1  
Old 03-05-2000, 07:18 PM
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Join Date: Apr 1999
Location: Apex, NC USA
Posts: 176
When slowly accelerating the transmision isn't as smooth as when accelerating more rapidly.

Can this be adjusted? The service CD haas no info on trans or I haven't found it yet.

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1991 350 SDL
114,000 miles

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  #2  
Old 03-05-2000, 08:06 PM
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Join Date: Mar 1999
Location: Tucker, Ga USA
Posts: 12,153
There are several vacuum controls on 1991 350SDL for transmission control. Many times even "trained" technicians have problems w/these control adjustments.
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  #3  
Old 03-05-2000, 09:26 PM
rbdrost
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Suggest you try adjusting the modulator. It is a vac. control on the driver side of the transmission. You can find it by looking for a black plastic vac. line that is attached and also look for a plastic part that has a small rubber cap on it. Pry the cap off and there will be slots visable, in the slots will be a "key". Pull the key out far enough to bypass the slots and try adjusting it in or out 1/2 turn at a time. Turning in will be a harder shift, turning out will be a softer shift. The shift should be firm but not so hard that you feel a distinct jerk.

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Old 03-06-2000, 03:58 AM
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Join Date: Feb 2000
Location: Philippines
Posts: 157
Same problem here. Have an 85' 300D 124.
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  #5  
Old 03-06-2000, 09:49 PM
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Join Date: Mar 1999
Location: Suwanee, GA, USA
Posts: 4,712
I have seen a small yet informative section in the cd's uder the engine section. You have to dig to find it. It gives the vaccum lay out and what the different pieces do.

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Benzmac:
1981 280GE SWB
1987 16V
ASE CERTIFIED MASTER AUTO TECHNICIAN
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