Removal Procedure
- Remove the engine oil pan. Refer to
Oil Pan Replacement.
- Rotate the crankshaft so that cylinders 1 and 4 are at top dead center (TDC).
- Remove the piston oil nozzles from cylinders 1 and 4 using a 3/8 inch wobble extension drive with a 6 mm hex drive bit. Remove the piston oil nozzles. (Crankshaft removed for illustrative purposes.)
- Rotate the crankshaft so that cylinders 2 and 3 are at TDC. Remove the piston oil nozzles.
Installation Procedure
Caution: Refer to Fastener Caution in the Preface section.
- Install new piston oil nozzles. Turn the extension by hand to ensure that the threads are aligned. Use a long screwdriver to ensure that the nozzle does not rotate and make sure that the locating pin is properly indexed in its hole. Tighten the piston
oil nozzle bolts to
15 N·m (11 lb ft).
- Install the engine oil pan. Refer to
Oil Pan Replacement.
- Lower the vehicle. Refer to
Lifting and Jacking the Vehicle.
- Replace the oil filter and fill the engine with new engine oil. Refer to
Engine Mechanical Specifications.
- Reset the engine oil life monitor. Refer to
GM Oil Life System Resetting.