Parts for your 2006 Holden Astra-Fuel pump

2006 Holden Astra fuel pump — purpose, fitment and servicing tips

Based on technical references including the GM/Opel TIS Astra‑H service information (Holden AH), Haynes Astra Petrol & Diesel 2004–2009, and AC Delco/Delphi parts catalogues for the AH series, the 2006 Holden Astra is fitted with an electric in‑tank fuel pump on all petrol and diesel variants. Petrol models use a returnless, in‑tank pump module with an integrated pressure regulator, while the 1.9 CDTi diesel also has an in‑tank lift pump feeding a high‑pressure pump on the engine. So a fuel pump is absolutely relevant on this model.

On the Astra AH, the fuel pump’s job is simple but critical: move fuel from the tank to the engine at the correct pressure and volume so the injectors can do their thing. On petrol engines, the module maintains steady rail pressure (typically in the 3.5–4.0 bar range