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Changing the shift points?

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Old Jan 22, 2006 | 07:42 PM
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Changing the shift points?

Can't remember what that little ******* is called... the little bulb on a C6 trans where the vac line goes in? Is it true that I can adjust when it shifts by turning that little screw? My trans shifts sooner than I'd like and that'd be sweet.
 
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Old Jan 23, 2006 | 06:25 AM
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From: Somewhere Saskatchewan
Little bulb

Is called a vacuum modulator.

The small screw inside can be turned in.
Which will raise the shift points a few kilometers / miles per hour.

Behind the valve is a short pin that can be lengthened which will have a greater affect.
 
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Old Jan 23, 2006 | 09:32 AM
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Thank you.
 
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Old Jan 23, 2006 | 08:30 PM
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53fatfndr
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As to the small internal screw, turn it in (clockwise), to raise the RPM shift points. Turn it out (counterclockwise) to lower the RPM shift points.
 
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