Engine Prelubing

WARNING: This page is about a different car, the 2004 GMC Sierra, 2004 GMC Cab & Chassis Sierra, 2004 Chevrolet Silverado, and 2004 Chevrolet Cab & Chassis Silverado. However, it is still accessible from the selected car via links, so may be relevant.

Tools Required

J 45299 Engine Preluber

IMPORTANT: A constant/continuous flow of clean engine oil is required to properly prime the engine. Be sure to use an approved engine oil as specified in the owners manual.

NOTE: Refer to Fastener Notice in Cautions and Notices.

Remove the engine oil filter, fill with clean engine oil, and reinstall.
Tighten: Tighten the oil filter to 24 N.m (18 lb ft).
Remove the oil pressure sensor.

Fig 1: View Of Engine Assembly

Courtesy of GENERAL MOTORS CORP.

Install the M16 x 1.5 adapter P/N 509375.
Install the flexible hose to the adapter and open the valve.
Pump the handle on J 45299 to flow a minimum of 1-2 quarts of engine oil. Observe the flow of engine oil through the flexible hose and into the engine assembly.

Fig 2: Identifying Engine Preluber J 45299

Courtesy of GENERAL MOTORS CORP.

Close the valve and remove the flexible hose and adapter from the engine.
Install the oil pressure sensor.
Tighten: Tighten the oil pressure sensor to 41 N.m (30 lb ft).
Top-off the engine oil to the proper level.