GM Service Manual Online
For 1990-2009 cars only

Hydra-Matic 4T80-E Shift Speed Chart

 

1-2 Shift

@ +/- 3 mph

2-3 Shift

@ +/- 4 mph

3-4 Shift

@ +/- 5 mph

4-3 Coast Down shift @ +/- 4 mph

3-2 Coast Down shift @ +/- 4 mph

2-1 Coast Down shift @ +/- 4 mph

VCC Apply 4th Gear

% of TPS

10

25

50

10

25

50

10

25

50

Model

Series

 

 

 

AAN

E & K

8

18

37

14

34

68

23

55

112

35

16

7

42

MLN

K

7

15

33

12

28

56

18

45

93

35

14

6

36