Parts for your 2006 Mitsubishi Lancer-Power steering pump

2006 Mitsubishi Lancer Power Steering Pump — Purpose, Care, and When to Replace

Based on technical references including the Mitsubishi Motors Lancer CH/CS Service Manual (Steering, Group 37), the Mitsubishi ASA parts catalogue for 2006 models, and mainstream aftermarket catalogues for the accessory drive layout, the 2006 Mitsubishi Lancer uses a belt-driven hydraulic power steering pump. It’s a conventional hydraulic system, not electric, on mainstream AU/NZ 2006 Lancer variants.

The power steering pump’s job is simple but crucial: it pressurises fluid and feeds the steering rack so turning the wheel is light and predictable at low speeds, yet stable on the open road. On the 2006 Lancer, the pump is driven by the accessory belt and circulates Mitsubishi-approved power steering fluid/ATF through the rack and back to the reservoir.

As part of routine servicing, it’s smart to keep an eye on a few basics:

• Fluid: Check the reservoir under the bonnet every service. The level should sit between the marks with the engine warm. If it’s dark, smells burnt, or looks foamy, plan a flush.
• Belt: Inspect the drive belt for cracks, glazing, or slack. A noisy, slipping belt can mimic pump failure.
• Leaks: Look for wetness around the pump body, hoses, and rack connections. Fresh, clean fluid and sound hoses keep the pump happy.

Common signs the pump’s on the way out include a whining or groaning noise that rises with steering effort, heavier steering at idle, aerated (bubbly) fluid, or a shudder when parking. If left too long, metal wear from a failing pump can contaminate the system and shorten the rack’s life.

Replacement is straightforward for a competent home mechanic with a decent set of spanners, but many prefer a workshop to avoid mess and ensure correct bleeding. Typical steps are: drain the reservoir, remove the belt, disconnect lines (use new O-rings/crush washers), swap the pump, refit the belt, refill with the specified fluid (Mitsubishi ATF SP III or equivalent, per the owner’s/service manual), then bleed the system.

1. Front wheels off the ground, engine off: turn lock-to-lock 10–15 times, topping up as bubbles purge.
2. Start the engine and continue gentle lock-to-lock until noise and bubbles disappear, keeping the level steady.

Most pumps will last well past 150,000 km if the fluid’s kept clean and the belt is tensioned correctly. If replacement’s needed, quality new or remanufactured units paired with a fluid flush help protect the steering rack and keep the Lancer steering sweet for years.

Popular questions

What fluid should a 2006 Lancer power steering system use?
Mitsubishi specifies an ATF meeting SP III performance for many CH/CS Lancer hydraulic steering systems. Always confirm on the reservoir cap and in the owner’s or service manual. Don’t mix fluid types, if in doubt, fully flush and refill with the correct spec.

How do you bleed the power steering after replacing the pump?
Fill the reservoir, raise the front wheels, and with the engine off turn the wheel slowly from lock to lock 10–15 times while keeping the level up. Then start the engine and repeat until bubbles clear and the fluid stays quiet and steady. Recheck the level after a short drive.

What are the signs the pump is failing on a 2006 Lancer?
A high-pitched whine or groan that follows steering input, heavier-than-normal steering at idle, foamy or metallic-looking fluid, and visible leaks at the pump or hoses are the big clues. Don’t ignore it—catching it early can save the steering rack.