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Coolant Heater Replacement (LH6, LY2, LMG, LY5, and LY6)|Page 4695 > < Coolant Heater Replacement (LH6, LY2, LMG, LY5, and LY6)

Sierra 1500 2WD V8-5.3L (2008)

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5. For vehicles with regular production option (RPO) LY6 (6.0L) perform the following steps otherwise proceed to step 10.
6. Remove the oil cooler hose bracket bolt (1).
7. Remove the oil cooler hose adapter bolts (2).
8. Remove and discard the oil cooler hose adapter gasket.
9. Reposition the oil cooler hose adapter end out of the way.

10. Disconnect the coolant heater cord electrical connector.

Coolant Heater Replacement (LH6, LY2, LMG, LY5, and LY6)|Page 4695 > < Coolant Heater Replacement (LH6, LY2, LMG, LY5, and LY6)