High Line Pressure
WARNING: This page is about a different car, the 2005 GMC Yukon XL, 2005 Chevrolet Suburban, and 2005 Chevrolet Avalanche. However, it is still accessible from the selected car via links, so may be relevant.
High Line Pressure
| Checks | Cause |
|---|---|
| Pressure Regulator Valve (231) | Valve is stuck at high torque signal due to an undersized bore or sediment. |
| Reverse Boost Valve (228) | Valve is stuck at high torque signal due to an undersized bore or sediment. |
| Retainer Pin (211) | Pin is broken |
| Orificed Plug (210) | Plug is blocked |
| Pressure Control Solenoid Valve (320) |
|
| PCM | Loose connector |
| Check the PCM for current DTCs. | |