Sierra 1500 2WD V8-5.3L (2008)
10. Using J 28458 , release the pass-through electrical connector from the transmission case.
1. Use the small end of the J 28458 over the top of the connector.
2. Twist in order to release the four tabs retaining the connector.
3. Pull the harness connector down through the transmission case.
11. Remove the TCC solenoid (with O-ring seal) and wiring harness.
12. Inspect the TCC solenoid and wiring harness for the following defects:
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Damage
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Cracked connectors
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Exposed wires
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Loose pins
Installation Procedure