GM Service Manual Online
For 1990-2009 cars only

Line Pressure

Pressure Control Solenoid Current (Amp)

Approximate Line Pressure (PSI)

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

1.10

53-68

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