Oil Spray Jet: Service and Repair

Piston Oil Nozzle Replacement

Removal Procedure




1. Remove the engine oil pan. Refer to Oil Pan Replacement (Service and Repair).
2. Rotate the crankshaft so that cylinders 1 and 4 are at top dead center (TDC).
3. 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.)
4. Rotate the crankshaft so that cylinders 2 and 3 are at TDC. Remove the piston oil nozzles.

Installation Procedure





Caution: Refer to Fastener Caution (Fastener Caution).

1. 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 Nm (11 lb ft).
2. Install the engine oil pan. Refer to Oil Pan Replacement (Service and Repair).
3. Lower the vehicle. Refer to Lifting and Jacking the Vehicle (Service and Repair).
4. Replace the oil filter and fill the engine with new engine oil. Refer to Engine Mechanical Specifications (Specifications).
5. Reset the engine oil life monitor. Refer to GM Oil Life System Resetting (Service and Repair).