High Stall Speeds (Stall in Ranges 1-6)
WARNING: This page is about a different car, the 2010 GMC Sierra, 2010 GMC Cab & Chassis Sierra, 2010 Chevrolet Silverado, and 2010 Chevrolet Cab & Chassis Silverado. However, it is still accessible from the selected car via links, so may be relevant.
| Condition | Action |
|---|---|
| Not in gear | Select D, DRIVE. |
| Low fluid level, aerated fluid | Add fluid to the proper level. Refer to Transmission Fluid Level and Condition Check . |
| Faulty torque converter | Replace the torque converter. Refer to Torque Converter Replacement . |
| Incorrect torque converter | Replace the torque converter. Refer to Torque Converter Replacement . |
| Clutch pressure low | Refer to Low Main Line Pressure in Specific Ranges, Normal Pressure in Other Ranges . |
| 1-2-3-4 clutch or Low and Reverse clutch or 2-6 clutch slipping Use the diagnostic tool to measure turbine speed. |
Rebuild the 1-2-3-4 clutch or the Low and Reverse clutch or the 2-6 clutch. |
| Higher power engine | Confirm proper engine match. |