Shift Solenoid Valve State and Gear Ratio
WARNING: This page is about a different car, the 2008 GMC Yukon and 2008 Chevrolet Tahoe. However, it is still accessible from the selected car via links, so may be relevant.
| Gear | Shift SOL 1 | Shift SOL 2 | Aux Line BOOST Valve PC SOL 5 N.L. | 1-3 CL PC SOL 4 N.L. | Hybrid Low, 1-2 CL PC SOL 3 N.H. | Hybrid Direct, 2-3-4 CL PC SOL 2 N.H. | Isolator Valve PC SOL 1 N.H. | Gear Ratio |
|---|---|---|---|---|---|---|---|---|
| Park (Engine Running) | OFF | OFF | OFF | OFF | OFF | OFF | ON | - |
| Reverse (EVT Engine Running) | OFF | OFF | OFF | OFF | ON | OFF | ON | 3.692 |
| Neutral (Engine Running | OFF | OFF | OFF | OFF | OFF | OFF | ON | - |
| EVT Mode 1 (Engine Running) | OFF | OFF | OFF | OFF | ON | OFF | ON | Infinity to 1.70 |
| EVT Mode 1 (Engine Off) | OFF | OFF | ON | OFF | ON | OFF | OFF | Infinity to 1.70 |
| Drive 1st | ON | OFF | OFF | ON | ON | OFF | ON | 3.692 |
| Drive 2nd | ON | OFF | OFF | OFF | ON | ON | ON | 1.705 |
| Drive 3rd | ON | ON | OFF | ON | OFF | ON | ON | 1.000 |
| Drive 4th | ON | ON | OFF | OFF | ON | ON | ON | 0.738 |
| EVT Mode 2 (From 4th) | OFF | ON | OFF | OFF | OFF | ON | ON | - |
| Power Off Low Default | OFF | OFF | OFF | OFF | ON | ON | ON | - |
| Power Off High Default | OFF | OFF | OFF | OFF | ON | ON | ON | - |
| For shift solenoids 1 and 2, "ON" = Solenoid Energized (Pressurized) "OFF" = Solenoid De-energized (No Pressure). For pressure control solenoids, "ON" = Pressurized, "OFF" = No Pressure |
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