Parts for your 2013 Holden Colorado-Oil pump

2013 Holden Colorado oil pump — what it does and how to look after it

Yes, the 2013 Holden Colorado (RG series) absolutely uses an engine oil pump. This is confirmed across technical sources including the Holden RG Colorado Workshop Manual (2012–2016), GM Global Service Information (GSI), and the GM/ACDelco Electronic Parts Catalogue. Those references describe a crankshaft-driven gerotor-style pump mounted in the front cover on the 2.8‑litre and 2.5‑litre turbo‑diesel engines used in 2013 models.

The oil pump’s job is simple but critical: it pulls oil from the sump, pressurises it, and feeds it through the galleries to crank and rod bearings, camshafts, the turbocharger and valvetrain. A built-in pressure relief valve helps keep the system within spec across hot starts, highway runs, and heavy towing. Without a healthy pump and clean oil, metal parts quickly lose their protective film and wear out.

For servicing, the pump itself isn’t a scheduled replacement item. The best protection is timely oil and filter changes using a quality diesel-rated oil that meets GM dexos2 in the right viscosity for local climate. Follow the Holden schedule (typically every 15,000 km or 12 months, sooner for dusty, hot, short‑trip or towing use common in Australia and New Zealand). Keeping the oil clean prevents sludge, varnish and aeration that can starve the pump and the turbo.

When should a Colorado owner think about the oil pump specifically? Usually only if there’s verified low oil pressure, contamination, or during major engine work. A mechanic will confirm pressure with a mechanical gauge, check the oil pressure sensor, inspect the pickup screen and O‑ring, and look for bearing clearances out of spec before calling the pump.

• Typical warning signs: low oil pressure light, top‑end rattle on cold start that doesn’t clear, turbo noise, bearing knock, or metallic glitter in drained oil.
• Replacement is a front‑cover job: harmonic balancer off, front cover removed, and (on many variants) the lower sump dropped to access the pickup. Always renew the pickup O‑ring, front crank seal and cover gasket/RTV, then prime the pump with clean oil before first start.
• Good times to consider a new pump: high kilometres (e.g., 250,000+), an engine rebuild, evidence of sludge, or when you already have the front cover off for timing/balance shaft service.

The bottom line for a 2013 Colorado is simple: keep the oil fresh, use the right spec, and investigate any pressure warnings promptly. Do that, and the factory oil pump commonly lasts the life of the engine.

Popular questions

Does the 2013 Holden Colorado have an oil pump?
Yes. Technical references such as the Holden RG Colorado Workshop Manual and GM Global Service Information describe a crank-driven gerotor oil pump in the front cover on the 2.8‑litre and 2.5‑litre diesels. It’s essential for lubricating bearings, cams and the turbo.

How long does a Colorado RG oil pump usually last?
With regular oil and filter changes using the correct spec oil, the pump often lasts the life of the engine. High kilometres, sludge, or repeated overheating can shorten its life, so severe‑use intervals (shorter than the standard 15,000 km/12 months) are smart for towing and dusty work.

What else can cause low oil pressure besides a bad pump?
Plenty: a failing oil pressure sensor, thin/incorrect oil, a leaking or hardened pickup O‑ring, clogged pickup screen, worn bearings, or even aeration from low oil level. A technician will verify actual pressure with a gauge before condemning the pump.