Parts for your 2007 Holden Commodore-Oil pump

2007 Holden Commodore Oil Pump — What It Does and When to Sort It

Technical sources, including the Holden VE Commodore Service Manual (2006–2013) and GM Service Information for the LY7 V6 and L98 V8, confirm that every 2007 Holden Commodore runs an engine oil pump. The 3.6‑litre Alloytec V6 (LY7) uses a crankshaft‑driven gerotor pump integrated into the front cover, while the 6.0‑litre Gen IV V8 (L98) uses a crankshaft‑mounted gerotor pump located behind the timing cover. In short, the oil pump is absolutely relevant on this model.

On a 2007 Commodore, the oil pump’s job is straightforward but critical: it pulls oil from the sump, pressurises it, and feeds bearings, camshafts, timing components, and lifters. Proper oil pressure prevents metal‑to‑metal contact, manages heat, and keeps the engine tidy by carrying contaminants to the filter. If pressure drops, warning lights, top‑end tick, timing chain noise (notably on Alloytec), and accelerated wear can follow.

Routine servicing keeps the pump happy. Regular oil and filter changes using the viscosity and spec recommended in the owner’s manual (commonly 5W‑30 in many Australian and New Zealand conditions) help maintain pressure and reduce sludge. A quick mechanical oil‑pressure check during a major service is a smart add‑on if the dash light has flickered or the kilometres are high.

• When replacement is considered: persistent low oil pressure (verified with a gauge), a noisy top end that improves with revs, metal in the oil, or as part of a rebuild.
• What owners notice: red oil can warning, tapping lifters, timing rattle on cold start, or DTCs like P0521/P0523 for oil pressure range issues.

Replacement is specialist work. On the LY7 V6, the pump is part of the front cover, so access involves removing the accessory drive, crank pulley, and timing cover