GM Service Manual Online
For 1990-2009 cars only

Line Pressure (4L60-E)

Pressure Control Solenoid Current (Amp)

Approximate Line Pressure (PSI)

2.2L/3.8L/4.3L

0.00

169-195

0.10

167-194

0.20

161-190

0.30

155-186

0.40

144-177

0.50

133-167

0.60

120-153

0.70

102-138

0.80

83-119

0.90

62-97

1.00

53-69

4.8L/5.0L/5.3L/5.7L

0.00

198-227

0.10

197-226

0.20

189-221

0.30

181-216

0.40

168-205

0.50

154-193

0.60

137-175

0.70

114-156

0.80

90-132

0.90

64-105

1.00

53-85

This test must be preformed at 1200 RPM and between 100°F and 200°F.