Express 3500 V8-4.8L (2007)
Valve Body: Service and Repair
4L60-E/4L65-E/4L70-E - Automatic Transmission
Valve Body and Pressure Switch Replacement
Removal Procedure
1. Ensure that removal of the valve body is necessary before proceeding.
Important: The following components can be serviced without removing the valve body from the transmission:
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The torque converter clutch solenoid (1)
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The pressure control solenoid (2)
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The internal wiring harness (3)
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The 2-3 shift solenoid (4)
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The 1-2 shift solenoid (5)
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The transmission fluid pressure manual valve position switch (6)
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The 3-2 shift solenoid (7)
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The torque converter clutch pulse width modulation (TCC PWM) solenoid (8)
2. Remove the fluid level indicator.
3. Raise the vehicle. Refer to Lifting and Jacking the Vehicle .
4. Remove the oil pan, gasket, and filter.
5. Disconnect the internal wiring harness electrical connectors from the following components:
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The transmission fluid pressure manual valve position switch (1)
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The 1-2 shift solenoid (2)
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The 2-3 shift solenoid (3)
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The pressure control solenoid (4)
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The TCC PWM solenoid (5)
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The 3-2 shift solenoid (6)