Quote:
Originally Posted by 2000mc
to complicate matters, the torque converter might behave differently in the manual vs automatic range. in auto the converter clutch could slowly ramp up to only 50% duty cycle, for a seamless feel, and maintain a low slip speed. driven in manual it might quickly go up to 80-100% with no slip
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GM started doing this in ~98 or so on nearly everything. supposedly reduces vibration felt by the passengers, but i don't buy it. it also likes to make trans temps shoot through the roof.