GM Service Manual Online
For 1990-2009 cars only

Gear Range

Solenoid

Line Pressure

B Port

E Port

Park/Neutral

ON

LOW

90-124.7 psi (620-859 Kpa)

--

OFF

HIGH

221.9-252.3 psi (1529-1739 Kpa)

--

Reverse

ON

LOW

89.9-124.7 psi (619-859 Kpa)

--

OFF

HIGH

221.9-252.3 psi (1529-1739 Kpa)

--

Dirve

ON

LOW

--

90-124.7 psi (620-859 Kpa)

OFF

HIGH

--

137.7-162.4 psi (949-1116 Kpa)

3

ON

LOW

90-124.7 psi (620-859 Kpa)

90-124.7 psi (620-859 Kpa)

OFF

HIGH

221.9-252.3 psi (1529-1739 Kpa)

137.7-162.4 psi (949-1116 Kpa)

2

ON

LOW

--

90-124.7 psi (620-859 Kpa)

OFF

HIGH

--

137.7-162.4 psi (949-1116 Kpa)

1

ON

LOW

90-124.7 psi (620-859 Kpa)

--

OFF

HIGH

221.9-252.3 psi (1529-1739 Kpa)

--