Removal Procedure

WARNING: This page is about a different car, the 2008 GMC Yukon XL, 2008 GMC Yukon, 2008 Chevrolet Tahoe, 2008 Chevrolet Suburban, and 2008 Chevrolet Avalanche. However, it is still accessible from the selected car via links, so may be relevant.

Fig 1: Identifying Valve Body Electrical Connections

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Remove the transmission filter. Refer to Automatic Transmission Fluid and Filter Replacement .

IMPORTANT: Removal of the 1-2 accumulator is necessary only if servicing the pressure control solenoid.

Remove the 1-2 accumulator, if necessary. Refer to Accumulator Assembly, Spacer Plate, and Gaskets .
Disconnect the internal wiring harness electrical connectors from the following components:
- Transmission fluid pressure switch (1)
- 1-2 shift control solenoid (2)
- 2-3 shift control solenoid (3)
- Pressure control solenoid (4)
- torque converter clutch pulse width modulation (TCC PWM) solenoid (5)
- 3-2 control solenoid (6)

Fig 2: View Of Pressure Control Solenoid & Components

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Remove the pressure control solenoid retainer bolt (364A) and retainer (378).
Remove the pressure control solenoid (377).

Fig 3: View Of 1-2 Shift Solenoid & Retainer

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Remove the 1-2 shift solenoid retainer (395) and the 1-2 shift solenoid (367A).

Fig 4: View Of 2-3 Shift Solenoid & 2-3 Shift Valve

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Remove the 2-3 shift solenoid retainer (395) and the 2-3 shift solenoid (367A).

Fig 5: View Of 3-2 Control Solenoid & 3-2 Control Valve

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Remove the 3-2 control solenoid retainer (395) and the 3-2 control solenoid (394).