Inspection Procedure
WARNING: This page is about a different car, the 2011 Cadillac DTS. However, it is still accessible from the selected car via links, so may be relevant.
- Clean the oil pump components with non-corrosive solvent.
- Inspect the housing (1) and the cover (6) for cracks, scoring, casting imperfections and damaged threads.
- Inspect the gerotor gears (5) for chipping, galling or wear.
- Inspect the pressure relief valve (2) for embedded particles and/or damage.
NOTE:
The internal parts of the oil pump are not serviced separately. If wear or damage is noted, replace the entire pump assembly.