Silverado 3500 4WD V8-6.0L VIN U (2004)
6. Compress the valve spring using the J 38606.
7. Install the valve keys.
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Use grease in order to hold the valve keys in place.
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Make sure the keys seat properly in the groove of the valve stem.
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Carefully release the valve spring pressure, making sure the valve keys stay in place.
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Remove the J 38606.
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Tap the end of the valve stem with a plastic faced hammer to seat the keys (if necessary).
8. Remove J 22794 from the spark plug port.
9. Notice:
Refer to Fastener Notice in Service Precautions.
Hand start the spark plug.
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Tighten the spark plug to 15 Nm (11 ft. lbs.).
10. Install the spark plug wires at the ignition coil.
11. Install the spark plug wire to the spark plug.
12. Inspect the wires for proper installation:
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Push sideways on each boot in order to check for proper installation.
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Reinstall any loose boot.
13. Install the valve rocker arm.
