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Old 07-08-05, 11:04 AM
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Re: 4T80E shift algorhythm logic -- what are the facts?

Quote:
Originally Posted by danbuc

edit: Manually selscting a lower gear, is not the same feature as the Performance Shift Algortihm. Selecting the lower gear basically tell the trans not to shift our of this gear, until Redline is reach. Selecting a lower gear, also raises your line pressure, resulting in much firmer shifts.
Are firmer shifts harmful for the engine/ transmission?
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