Guide to Replacing the Power Steering Pump on a 2011-2012 INFINITI G25
Address whining noises and stiff steering by choosing the right replacement pump for your G25.
- A whining noise when turning is the primary sign of a failing power steering pump or air in the system.
- No recalls or TSBs exist for this specific part; failure is due to normal wear.
- Bleeding the system of air is a critical first step in diagnosis and the final step of installation.
- For best results, flush the system and install an in-line filter to protect the new pump from old debris.
Is Your G25's Power Steering Pump Failing?
When the power steering pump in your INFINITI G25 starts to wear out, it will give you clear warning signs. The most common complaint from owners is a distinct whining or groaning noise that changes pitch as you turn 🎬 Listen to what a failing power steering pump sounds like. the steering wheel. This noise is often louder on cold starts or at low engine speeds. Another major symptom is the steering becoming stiff and heavy, particularly when you're trying to park or make slow turns. You might also notice fluid leaks under the front of your car.
Check for Air First!
Sometimes, a whining noise can be caused by air trapped in the power steering system, not a bad pump. Before you buy a new part, check your power steering fluid level. If it's low, top it off and try bleeding the system by turning the wheels from lock to lock several times 🎬 Watch this guide on how to bleed the system correctly. with the engine running. If the noise goes away, you may have only had an air bubble or a small leak.
Known Issues, Recalls, or TSBs
For the 2011-2012 INFINITI G25, there are no official recalls or technical service bulletins (TSBs) from INFINITI or the NHTSA related to the hydraulic power steering pump. The issues of noise and eventual failure are typically due to normal wear and tear over time.
Choosing the Right Aftermarket Pump
When replacing the pump, you have several options beyond the expensive dealership part. For a non-electronic part like the G25's pump, aftermarket options can offer good value. Here’s a breakdown of the quality tiers for available brands:
- New OEM-Supplier (Hitachi): Hitachi is often the original manufacturer for Infiniti. A new Hitachi pump offers OEM quality without the dealership markup and is a top-tier choice for reliability.
- New Aftermarket (Cardone New): A brand-new aftermarket pump from a company like Cardone can be a solid choice. These are not rebuilt and often come with a lifetime warranty, providing peace of mind. They are engineered to meet or exceed original specifications.
- Remanufactured (BBB Industries, Cardone Reman): Remanufactured pumps are a budget-friendly option. However, their quality can be inconsistent. Forum discussions show that these parts can sometimes be faulty out of the box, leading to doing the job twice. This is a risk to consider against the lower price.
- Economy (Mapco): Brands like Mapco are generally considered economy parts. They meet the basic need for a functional replacement at a low cost but may not have the same long-term durability as more premium options.
Cost of Replacing Your Power Steering Pump
| Part Type | Estimated Part Cost |
|---|---|
| New OEM (from Dealer) | $1100 - $1600 |
| New Aftermarket (Your Price Range) | $229 - $293 |
| Remanufactured Aftermarket | $170 - $210 |
| Used OEM | $70 - $150 |
| Estimated Shop Labor | $195 - $286 |
Pro Tip: Flush the System
When you replace your pump, it is critical to flush the entire power steering system and install an in-line magnetic filter. Old, contaminated fluid or metal shavings from the failed pump can quickly destroy your new part. Using fresh, correct-spec power steering fluid is essential for a long-lasting repair.
Frequently Asked Questions (FAQ)
Is it hard to replace the G25 power steering pump myself?
It is a moderately difficult job. Access requires removing the engine cover and air intake boxes. You will need to drain the fluid, release the belt tensioner to remove the serpentine belt, and then unbolt the high-pressure line 🎬 See this step-by-step walkthrough of the pump replacement process. and the pump itself. The most critical step is properly bleeding the system after installation to remove all air. It is feasible for a DIYer with a good set of tools and some experience.
What fluid should I use in my INFINITI G25?
Always use a high-quality fluid that meets INFINITI's specifications. Using the wrong type of fluid can damage seals and cause the new pump to fail. Check your owner's manual, but typically Genuine Nissan/INFINITI PSF or a compatible full-synthetic multi-vehicle power steering fluid is required.
Do I need to replace the pulley or reservoir?
Most aftermarket pumps for the G25 come with a new pulley already pressed on. The reservoir is almost always sold separately. You can typically reuse your original reservoir if it is thoroughly cleaned, but it's often easier and safer to buy a new one to ensure no contaminants enter the new pump.
Will a bad power steering pump damage other parts?
Yes. When a pump fails, it can send metal debris throughout the steering system. This debris can damage the expensive steering rack. This is why flushing the system and adding an inline filter is highly recommended during replacement.
Helpful Videos
Technical Specifications
OEM Part Numbers: 49110-JK20A 49110-JK200 49110-JK00B 49110-JK000 49110EG000
Housing Material: Aluminum, Pulley Included: Yes, Reservoir Included: No.
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The information in this article is provided for general reference and educational purposes only. Vehicle specifications, procedures, and part compatibility can vary by production date, trim level, and region. Always consult your vehicle's factory service manual and verify part numbers before purchasing or performing repairs. Safety-critical components such as airbags, seat belts, and braking systems should be installed by a qualified professional.
- INFINITI G25: