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Re: '95 T-bird 4R70W-soft 1-2 shift and EPC problems
Posted to Transmission Forum on 12/13/2005

I'm not positive that the epc on Ford works the same as GM but w/gm trans the line pressure is controlled by current flow through pressure control solenoid (which is pwm to gnd by pcm). More current flow=lower line pressure.

93 GM pickup-harsh shifts-line pr... Login to read more.