Sierra 3500 4WD V8-6.6L DSL Turbo VIN 2 (2004)
7. Pull the cooling line straight out from the quick connect fitting.
8. Repeat this procedure to remove all the remaining cooling lines from quick connect fittings.
9. For vehicles without an auxiliary cooler, remove the cooling lines from the radiator.
10. For vehicles with auxiliary cooling, remove the cooling lines from the radiator.
11. Remove the oil cooling lines from the auxiliary oil cooler.
Installation Procedure
1. Install the transmission oil cooler lines to the vehicle.
2. Important: