2017 Ram 1500 Power Steering Fluid Location: A Definitive Guide to System Type and Maintenance

The maintenance requirements for the power steering system in the 2017 Ram 1500 differ significantly depending on the specific engine package installed. Owners seeking to locate the power steering fluid reservoir must first definitively confirm their truck’s steering system architecture. Proceeding with maintenance—or neglecting it—based on an incorrect assumption regarding system type can lead to severe mechanical and electrical failures.

This comprehensive analysis aims to resolve the ambiguity surrounding the 2017 model year, detailing the precise fluid location for applicable models, outlining the specialized fluid specification (Mopar MS-11655), and providing expert guidance on inspection and flushing procedures necessary for system longevity. The core finding is that the presence of power steering fluid and a reservoir is exclusive to specific engine options, primarily the V6 configurations.

Determining Your 2017 Ram 1500 Power Steering System (EPS vs. EHPS)

The common assumption that all full-size pickup trucks utilize a traditional hydraulic steering system is outdated, particularly for the 2017 Ram 1500. Depending on the engine and trim package, the truck employs one of two radically different steering assist technologies: Electric Power Steering (EPS) or Electro-Hydraulic Power Steering (EHPS). Determining the engine type is the non-negotiable diagnostic filter for identifying whether fluid maintenance is applicable.

If a driver notices unusual noises or increased difficulty in turning the steering wheel, the corrective measure—checking fluid versus seeking electrical diagnosis—rests entirely on this initial system identification. The greatest financial risk to an owner is misdiagnosing a low-fluid condition as an electrical failure, or conversely, attempting to add fluid to a system designed to be fluid-less.

Understanding the Steering System Architecture

Vehicle manufacturers moved away from conventional, belt-driven hydraulic pumps to reduce parasitic engine drag, thereby improving fuel efficiency. This transition resulted in two distinct power steering architectures being used concurrently in the Ram 1500 lineup.

Electric Power Steering (EPS): This system, often referred to as Electric Power Assisted Steering (EPAS), completely removes the hydraulic element. Assist is provided by an electric motor, typically mounted on the steering column or directly on the steering rack. The majority of 2017 Ram 1500 models, especially those equipped with the 5.7L HEMI V8, rely on this fluid-less design. If a truck equipped with EPS experiences steering issues or noise, it indicates an electrical fault, motor failure, or mechanical binding within the rack, not a fluid problem.

Electro-Hydraulic Power Steering (EHPS): This hybrid solution maintains the use of hydraulic fluid and a rack-and-pinion steering gear but replaces the engine-driven pump with a pump module powered by an electric motor.³While more efficient than older systems because the pump only engages when required, the EHPS system still relies on specialized hydraulic fluid to create pressure. Mopar parts listings confirm that components requiring fluid, such as the reservoir (Part No. 68135084AA), are necessary for V6 and EcoDiesel models.

Engine Identification Table (The Key Differentiator)

Engine type provides the most reliable indicator of the power steering system installed:

Engine Compatibility and Power Steering System Type

If the vehicle uses the 3.6L Pentastar V6 or the 3.0L EcoDiesel V6, the owner can proceed to locate and service the hydraulic components.

Pinpointing the Power Steering Fluid Reservoir Location

For the 2017 Ram 1500 models equipped with the fluid-dependent EHPS system, the power steering fluid reservoir must be located within the engine compartment for routine checks. This component is strategically placed to facilitate easy access and ensure continuous fluid supply to the hydraulic pump.

Visual Guidance for Location (Fluid-Equipped Models Only)

The placement of the power steering fluid reservoir is relatively standardized across the Chrysler/Ram platform, typically mounted high within the engine bay. This high mounting position is deliberate, helping to minimize the chance of hydrostatic lock or pump starvation, which can occur if the fluid level is extremely low or if the vehicle undergoes rapid changes in elevation or aggressive maneuvering.

The steps for location are as follows:

1. Safety First: Ensure the engine is completely shut off and cooled down before inspecting the components or opening the cap.
2. Open the hood and visually inspect the firewall—the solid structure separating the engine from the cabin.
3. The Power Steering Fluid Reservoir is typically a small, translucent plastic container situated toward the rear of the engine bay, frequently found in the upper left quadrant when viewed from the front of the truck.
4. The container is distinct from the larger engine coolant overflow tank and the brake fluid reservoir. Its cap is usually black and may be marked with a universal steering wheel icon or labeled explicitly.

The Mopar component associated with this location is the Power Steering Fluid Reservoir, Part Number 68135084AA, confirming its installation on V6 and EcoDiesel variants.

The Exact Fluid: Specifications, Part Numbers, and Critical Warnings (Mopar MS-11655)

The electro-hydraulic pump system is significantly more demanding of its lubrication and hydraulic medium than older, simpler hydraulic systems. The system’s reliance on an electric motor and specialized seals means that the exact chemical properties of the fluid are critical. Use of an incorrect fluid will compromise the EHPS system, necessitating expensive replacement of the pump and potentially the steering rack.

Mandatory Fluid Specification

The fluid required for the EHPS system in the 2017 Ram 1500 (3.6L V6 and 3.0L EcoDiesel) must meet the Mopar Material Specification MS-11655. This is a proprietary standard specifically designed to protect the EHPS unit’s electrical motor components, seals, and control valves. Failure to use a fluid meeting this exact specification risks severe electrical power steering pump damage.

The official Mopar OEM fluid meeting this requirement is Power Steering Fluid P/N 68088485AB. This fluid is sometimes marketed as “Electric Power Steering Pump Fluid” or “HYDRAULIC” fluid.

The Severe Warning Against Substitution

A serious maintenance hazard for this truck involves the substitution of the specialized MS-11655 fluid with Automatic Transmission Fluid (ATF) or general power steering fluid. While historically, many Chrysler/Dodge steering systems used ATF+4, this practice is absolutely prohibited for the 2017 Ram 1500 EHPS system.

The difference in chemical composition, viscosity, and thermal properties of an incorrect fluid will rapidly degrade seals, promote overheating within the electrically powered pump, and introduce contamination that leads to premature mechanical wear. The system is engineered around the specific properties of the MS-11655 fluid.

Approved Alternatives and Capacity

While Mopar components are the manufacturer-recommended choice, verified synthetic hydraulic fluids that explicitly meet or exceed the MS-11655 specification are viable alternatives. For example, high-performance synthetic hydraulic fluids such as Pentosin CHF 11S are commonly cross-referenced as meeting the demanding requirements of this system.¹⁴ Owners must verify specification alignment before use.

The fluid is typically sold in containers holding 16 fluid ounces (FL), which is sufficient for top-off procedures. For a complete system flush, significantly more volume is required to purge the entire system, necessitating 2–3 quarts of the specialized fluid.

OEM and Approved Power Steering Fluid Specifications

How to Accurately Check and Read the Fluid Level

Power steering fluid is not consumed during normal operation; therefore, any observed drop in level is a direct indication of a leak within the system, potentially at a high-pressure hose or the rack-and-pinion seals.¹⁰ Routine, condition-based inspection is mandatory to detect such leaks early and prevent the pump from running dry.

Inspection Procedure

Accurate fluid level measurement requires proper attention to the engine’s thermal state:

1. The vehicle must be positioned on a level surface, and the engine must be switched off.
2. Identify the engine temperature. Fluid levels expand when hot, so the owner must know whether to reference the “full hot” or “full cold” markings etched onto the reservoir or dipstick.
3. Carefully clean the reservoir cap area to prevent contamination from entering the system when opened.
4. Remove the reservoir cap. If a dipstick is integrated, wipe it clean before reinserting it (ensuring it is seated fully if necessary).
5. Check the reading against the MIN/MAX levels. If the level is low, top it off slowly using only the correct MS-11655 fluid, ensuring the final level sits between the MIN and MAX marks. Overfilling should be avoided to prevent pressure buildup.

Recognizing Warning Signs of Low Fluid

A low fluid level often precipitates immediate system deterioration, typically announced by a high-pitched whining or groaning sound when the steering wheel is turned, particularly at low speeds. This sound is the audible sign of the EHPS pump cavitating (sucking air) or straining. If pump noise is detected, fluid inspection and correction are required immediately. For general troubleshooting and deeper understanding of steering issues, owners can refer to resources such as the guide on Diagnosing Common Ram 1500 Steering Issues.

Power Steering Fluid Maintenance Schedule and System Flushing

Power steering fluid maintenance is fundamentally condition-based. Although the fluid is sealed, it degrades due to heat, pressure, and the accumulation of abrasive wear particles from the pump’s internal components.

Inspection and Replacement Intervals

It is recommended that both the level and the condition (color and smell) of the power steering fluid be checked on a monthly basis.¹¹ While many owner’s manuals omit a rigid mileage-based replacement schedule for power steering fluid, replacement is warranted based on fluid health.

A complete fluid flush should be executed immediately if the fluid appears opaque, dark brown, or black, indicating extensive contamination and the breakdown of protective additives.Contaminated fluid significantly accelerates wear on the EHPS pump and steering rack, drastically shortening the lifespan of these costly components.

Refill Capacity and System Volume

For a partial top-off, a single 16 fl. oz. bottle is typically sufficient.¹⁵ However, for a complete system flush—necessary when the fluid is severely contaminated—it is crucial to cycle enough new fluid through the system to displace all the old, dirty fluid contained in the high-pressure lines and the steering gear itself. Technicians typically recommend preparing 2 to 3 quarts (3 to 4 bottles) of Mopar MS-11655 fluid to perform a thorough cleaning.

For comprehensive reference on related maintenance and component specifications, owners may Consult the Ram 3.6L V6 Pentastar Specs Guide for related fluid maintenance.

DIY Flush Procedure and System Bleeding (Advanced Maintenance)

The most critical challenge during a DIY fluid flush is protecting the expensive EHPS pump from running dry. The preferred method for fluid exchange uses manual steering rotation, circulating the fluid without requiring the pump to operate under potentially adverse conditions. This maintenance should only be attempted by individuals with technical proficiency.

The Siphon Exchange Method (Engine Off)

To safely replace the fluid without stressing the pump:

1. Preparation: Elevate the front wheels of the Ram 1500 off the ground using certified jack stands. This allows the steering wheel to be turned manually with minimal effort. Refer to detailed guides, such as the 2017 Ram 1500 Lug Nut Torque guide, for safe lifting and support points.
2. Extraction: Use a vacuum pump or large fluid syringe to extract all accessible old fluid from the reservoir.
3. Initial Refill: Fill the reservoir with new Mopar MS-11655 fluid.
4. Cycling: With the engine remaining off, manually turn the steering wheel slowly from one steering stop to the other, performing 10–15 full cycles. This action pushes the old fluid out of the rack and back toward the reservoir for removal.
5. Repeat: Repeat the extraction and cycling steps until the fluid extracted from the reservoir is visibly clean and matches the color of the new fluid.¹¹

System Bleeding

After any component replacement or full fluid flush, air must be completely removed from the hydraulic circuit to ensure quiet and effective steering assist.

1. Start the engine and allow it to idle, monitoring the fluid level in the reservoir closely. Do not let the level drop below the minimum mark.
2. With the engine running, slowly turn the steering wheel from lock-to-lock several times. Air pockets will rise to the reservoir, appearing as bubbles.
3. Continue this cycling until bubbles cease and the steering effort is smooth and free of any high-pitched sounds. Top off the fluid to the correct cold/hot level as needed.

When an EHPS pump failure occurs, technicians frequently recommend replacing the plastic reservoir as well. Debris from the failed pump is often suspended in the old fluid and can settle in the reservoir, posing a contamination risk to a newly installed pump.

Frequently Asked Questions (FAQs)

Does the 2017 Ram 1500 have a separate power steering pump?

Yes, if the truck is equipped with the EHPS system (3.6L/3.0L), it uses a specialized pump module powered by an electric motor, distinct from the older engine-belt-driven designs.³ This electronic pump requires the precise lubrication and hydraulic characteristics provided by the MS-11655 fluid.

Is Electric Power Steering (EPS) better than Hydraulic Power Steering?

EPS generally offers superior fuel efficiency by eliminating the constant parasitic drag of a belt-driven pump. It also allows for variable-assist tuning, providing light effort at low speeds for parking and firm feedback at high speeds for stability. However, some drivers prefer the physical connection and road feedback traditionally offered by pure hydraulic systems. EPS requires no fluid maintenance, simplifying ownership.

How much does it cost to replace the power steering pump on a Ram 1500?

Due to the complexity and specialized nature of the Electro-Hydraulic Pump Module, replacement is a significant and costly repair. Costs typically reflect the high price of the electronic components and the required labor to carefully drain, replace, and bleed the high-pressure system. Consistent use of the correct Mopar MS-11655 fluid and timely maintenance is the most effective preventative measure against this expensive mechanical failure. A review of component replacement costs indicates that power steering pump service represents a major repair expenditure].

Where can I find the Mopar part number for the fluid?

The required Mopar OEM part number for the MS-11655 specification fluid is 68088485AB. It is critical that consumers always verify fitment and part accuracy using their Vehicle Identification Number (VIN) through an authorized dealer or official Mopar parts e-store to ensure the correct fluid is acquired].

Conclusion: Prioritizing Fluid Integrity for System Longevity

The determination of the 2017 Ram 1500 power steering fluid location hinges entirely on the vehicle’s engine architecture. Owners of trucks with the 5.7L HEMI V8 generally possess a fluid-less Electric Power Steering (EPS) system. For the V6 (3.6L Pentastar) and 3.0L EcoDiesel models, the fluid reservoir is located near the firewall, indicating the presence of an Electro-Hydraulic Power Steering (EHPS) system.

For these fluid-equipped models, maintenance is strictly governed by the Mopar MS-11655 proprietary specification. Deviation from this specialized fluid (P/N 68088485AB) by using generic fluids or ATF+4 guarantees damage to the sensitive electric pump. By diligently performing monthly fluid condition checks and executing a thorough, condition-based fluid flush when the fluid appears contaminated, owners can prevent premature pump wear, maintain precise steering feedback, and ensure the extended reliability of their Ram 1500’s steering system].