Sierra Denali AWD V8-6.2L (2008)
Fluid Pressure Sensor/Switch: Service and Repair
Pressure Switch Manifold Replacement
Removal Procedure
Important: Individual pressure switches cannot be replaced. When any pressure switch needs replacing, the entire assembly must be
replaced.
Important: The modulated main pressure (MAIN MOD) solenoid has been removed for clarity.
1. Remove the oil pan and transmission internal oil filter. Refer to Oil Pan Replacement (See: Automatic Transmission/Transaxle/Fluid Pan/Service
and Repair/Allison - Automatic Transmission) .
Caution: Refer to Battery Disconnect Caution .
2. Disconnect the internal wiring harness connector from the transmission fluid pressure (TFP) switch (2).
3. Remove six bolts (1). Remove the TFP switch (2).
Installation Procedure