GM Service Manual Online
For 1990-2009 cars only
Makes 🢒 GMC_Truck 🢒 2000 🢒 Yukon XL - 4WD 🢒 Body and Accessories 🢒 Wiring Systems 🢒 Shift Solenoid Valve State and Gear Ratio

Shift Solenoid Valve State and Gear Ratio; 4L80-E

Gear

1-2 SS Valve

2-3 SS Valve

Gear Ratio

1

ON

OFF

2.48:1

2

OFF

OFF

1.48:1

3

OFF

ON

1.00:1

4

ON

ON

0.75:1

R

ON

OFF

2.08:1