Parts for your 2014 Mitsubishi Asx-Fuel pump

2014 Mitsubishi ASX Fuel Pump — What It Does and How To Look After It

Technical references confirm the 2014 Mitsubishi ASX is fitted with a fuel pump. The Mitsubishi Motors ASX workshop manual (GA/GA2W series, circa 2013–2015) specifies an electric in-tank fuel pump module for petrol variants, while diesel models use a high-pressure pump on the engine and, depending on market spec, a low-pressure lift/supply arrangement. The Mitsubishi electronic parts catalogue also lists a fuel pump module for this model year, so yes — a fuel pump is relevant and used on the 2014 ASX.

In everyday terms, the ASX’s fuel pump sends petrol from the tank to the engine at the correct pressure so the injectors can do their thing. On petrol versions, it’s an electric pump built into a module that also houses the level sender and internal filter. Diesel variants rely on a high-pressure pump to feed the common-rail system, with filtration handled separately. When the pump’s healthy, the car starts quickly, pulls smoothly, and keeps fuel pressure steady no matter the conditions.

It’s not a routine replacement item, but a bit of care goes a long way. Keeping at least a quarter tank helps cool and lubricate the in-tank pump. Stick to clean, quality fuel, and for diesels, replace the external fuel filter at the interval in the service book (commonly around 30,000–40,000 kilometres, or sooner if driving in dusty or poor-fuel conditions). If the ASX starts hard, hesitates, or feels flat at higher revs, it’s wise to check fuel pressure and scan for fault codes before pointing the finger at the pump.

• Common signs a pump’s on the way out: long cranking, misfires under load, surging, a noticeable whine from the tank area, and fuel pressure or rail pressure codes such as “system pressure too low”.
• Simple checks first: fuses, relays, fuel quality, and (on petrol models) the pump electrical connector under the access cover.

When replacement is needed on petrol ASX models, access is typically via an under-seat or rear-floor service cover. A technician will safely relieve fuel pressure, disconnect the battery, remove the locking ring, lift out the module, and fit a new seal before refitting and torqueing the ring. Because the in-tank filter is part of the module on many petrol ASX versions, the whole assembly is usually replaced. Diesel high-pressure pumps are more complex and costlier, accurate diagnosis is essential before committing to parts.

Bottom line: look after the fuel you put in, keep up with filtration, and get issues tested early. The ASX’s pump will generally give long service if the basics are covered.

• Does the 2014 Mitsubishi ASX have a fuel pump?
  Yes. Petrol models use an electric in-tank fuel pump module, and diesel versions use a high-pressure pump for the common-rail system (some markets also have a low-pressure supply arrangement). It’s a core part of how the ASX delivers reliable fuel pressure to the engine.
• When should the fuel pump be replaced on a 2014 ASX?
  There’s no fixed interval. It’s replaced when testing shows low pressure/flow, excessive noise, or related fault codes. Always rule out simple causes first — fuses, relays, connectors, and for diesels, a clogged fuel filter.
• How much does ASX fuel pump replacement cost in AU/NZ?
  For petrol models, expect a ballpark of $450–$1,100 AUD/NZD fitted, depending on brand of the pump module and labour time. Diesel high-pressure pump jobs can be significantly more due to parts cost and calibration needs. A firm quote based on the exact VIN and engine is best.