Sierra 1500 4WD V8-4.8L VIN V (2004)
Oil Cooler: Service and Repair
Engine Oil Cooler Hose/Pipe Replacement
Engine Oil Cooler Hose/Pipe Replacement
Removal Procedure
The optional oil cooler is either an integral part of the radiator or a separate unit placed in front of the radiator. The cooler lines and hoses are
serviceable.
1. Disengage the plastic caps from the quick connect fittings. Pull the caps back along the pipe.
2. Hold one leg of the retaining clip.
3. Using a small pick-type tool or bent screwdriver, gently pry the other end of the retaining clip from the quick connect fitting.
4. Rotate the retaining clip out of the quick connect fitting. Remove the retaining clip completely.
5. Discard the OLD retaining clip.
6. If equipped with a 6.0L engine, perform the following:
1. Open the oil cooler hose clip located on the lower fan shroud.
2. Remove the oil cooler hoses from the clip.
3. Gently pull the oil cooler pipe fittings straight out from the radiator quick connect fittings.
4. Raise and suitably support the vehicle.
7. Remove the exhaust manifold pipe nuts.
8. Reposition the pipe out of the way.
