600 Sel Trans Upshifts
 

STILL HAVING PROBLEMS WITH UPSHIFTS. STARTS IN 1ST, SKIPS 2ND,GOES TO 3RD, WONT GO TO 4TH UNTILL RPM IS OVER 3300
I CAN GO TO "N"NEUTRAL AND BACK TO "D"DRIVE AND GET IT TO GO INTO 4TH EARLIER
CHANGED FLUID/FILTER VERY LITTLE POWDER RESIDUE IN PAN
CHECKED KICKDOWN SWITCH FOR CONTINUITY. TRIED PRESSING THE SWITCH WHILE THE CAR WAS IN THE AIR WITH ENGINE RUNNING, GOT 12 VOLTS AT KICKDOWN SOLENOID THE WHOLE TIME, NOT SURE IF THAT SYSTEM MIGHT BE SPEED SENSITIVE OR NOT.
THIS PROBLEM IS INTERMITTENT, BUT LATELY IT SEEMS TO HAPPEN MOST OF THE TIME
ANY HELP WOULD BE GREATLY APPRECIATED. THANK YOU