CTE Task: Replace Power Steering Pump Filter

Click here to download the teacher material for this task. 

COURSE:

Maintenance and Light Repair III (MLR III)

TASK LENGTH:

1 Hour

 

Replace Power Steering Pump Filter

Task Description

Standards

Students will:

  • read the linked materials,
  • watch the linked videos using guided notes, and
  • record a video of themselves describing the steps and tools involved in replacing a power steering pump filter.

 

Safety Note: If possible, students should do this task with a vehicle, but ensure the students do so safely. Lifting the vehicle is not required for the purpose of the student video.

Overall Standard (3): Students will inspect, service, and repair suspension and steering systems.

 

Replace power steering pump filter(s). (3.9)

 Content Understandings

Extending Understandings

Upon successful completion of these tasks students will demonstrate the ability to:

  • Explain why a vehicle may have a power steering pump filter.
  • Select the tools required.
  • Describe required safety precautions.
  • Locate the power steering pump filter.
  • Locate the return line for the power steering fluid.
  • Explain why there are different procedures for replacing the power steering filter in different vehicles.
  • Describe how to replace a filter in the power steering reservoir.
  • Describe how to replace an inline power steering fluid filter.   

To move students towards deeper understanding, they should be given opportunities to:

  • Describe what happens to vehicles with dirty or contaminated power steering fluid.
  • Explain how to install a power steering pump filter in a vehicle that does not have one.

 

Support Strategies

If students are struggling to access this task, additional supports and strategies could be employed as students are engaging with the task.

Key Terms

Sentence Frames

Scaffolded Questions

Low pressure line

 The return line or __________________________ flows back to the power steering fluid reservoir.

Which way does the power steering fluid flow in the low pressure line?

 

Resources

 

Materials to read (see student/teacher guide below)

The FCP Euro Blog – Tim Wong (2017, Feb 2). How to Install a Power Steering Fluid Filter

https://blog.fcpeuro.com/how-to-install-a-power-steering-fluid-filter

 

Videos to watch (see note guide below)

Note: The videos support different model vehicles.

OTR Performance (2015, Oct 13). Volvo Truck Power Steering Filter Replacement (Video). YouTube.

https://www.youtube.com/watch?v=n_F7yUgY_Ks (1:20 minutes)

 

Bavarian Auto Sport (2011, Jan 3). Changing The Power Steering Filter & Fluid On A BMW (Video). YouTube.

https://www.youtube.com/watch?v=T4Gp1vNgOLc (12 minutes)

 

HummerMods (2018, Jul 14). Magnetic Power Steering In Line Magna-X Filter Installation on Hummer (Video). YouTube. https://www.youtube.com/watch?v=K1D6MdGZ1Uk (4:30 minutes)

 

bythabayplayer (2008, Oct 20). Power Steering Filter Install on Lexus (Video). YouTube.

https://www.youtube.com/watch?v=jgVhnYg7RK0 (7:50 minutes)

 

 

Additional Resources

Cardone (2011, May 31). Power Steering Pump Misdiagnosis: Dirty Reservoir Screen (Video). YouTube.

https://www.youtube.com/watch?v=lCG2TFnXxa8 (2 minutes)

 

Student Resource

Click here to download the student resource for this task. 

 

Student Reading Guide

Many cars do not have a power steering pump filter. Power steering fluid will not last the life of your vehicle. Over time, the seals in the steering rack will wear, leaving tiny bits running in the fluid. The metal gears will also wear and metal flakes, if not kept in check, will destroy the seals and require either a rebuild, or a new steering rack. As a preventative measure, it can be important to use a power steering pump filter.

Vehicles vary greatly with power steering pump filters. Some manufacturers specify flushes of the power steering fluid. Some, but not all, vehicles use a replaceable power steering pump filter. It can be located in the power steering fluid reservoir or in the power steering return line. If it is in the reservoir, it may be a separate filter that sits in the bottom of the reservoir and can be carefully fished out of the reservoir and replaced. Other manufacturers build the filter into the reservoir such that the reservoir and filter are one unit and changed together. Always check the service information to determine the scheduled service interval and the location of the filter.

Inline filters are usually installed in the return line due to the lower pressure. It may be spliced into the hose between the steering gear and the pump, or it could fit inside the return hose where the return hose connects onto the pump. When changing the filter, you need to flush or remove the power steering system first to remove as much of the old fluid as possible before installing the new filter.

 

To replace the power steering pump filter(s), follow the steps:

1

  1. Locate the power steering pump filter.  Research the vehicle you are working on to determine if it has a power steering pump filter, its change interval, and its location. Some vehicles had an inline filter installed after manufacture, so be sure to verify.
  2. Remove the power steering fluid.  This prevents a mess when replacing the filter. 
  3. For filters inside the reservoir, follow the specified procedure in the manufacturer’s specifications.
  4. For inline filters:
    1. Loosen and remove the clamps on the hose.
    2. Remove the old filter.
    3. Install the new filter.  Be sure the arrow points in the direction of the flow.  The fluid flows from the power steering box to the power steering reservoir.  Therefore, in the return line or low pressure line the fluid flows toward the power steering fluid reservoir. There is an arrow on the filter indicating flow direction.
  5. Be sure to fill the reservoir with the appropriate power steering fluid.

 

 

 

 

Student Video Guide

 

Volvo Truck Power Steering Filter Replacement

  1. This replacement is for an in reservoir filter.
  2. Remove filter in accordance with manufacturer’s specifications.
  3. Install the replacement filter in accordance with specifications.
  4. Ensure power steering fluid is at appropriate level.

 

Changing the Power Steering Filter & Fluid On A BMW

  1. This replacement is for a filter in the reservoir – the entire reservoir is replaced. .
  2. Gain access to reservoir by removing air filter box.
  3. Remove fluid from the reservoir.
  4. Loosen screws holding the reservoir.
  5. Remove clamps on hoses connecting to the reservoir.
  6. Remove hoses from reservoir and remove reservoir.
  7. Remove mounting bracket from old reservoir and install it on the new reservoir.
  8. Begin installation of the new reservoir by connecting to the hoses.
  9. Finish installation by mounting the reservoir in place with all appropriate bolts.
  10. Reinstall the air filter box.
  11. Fill the reservoir with appropriate fluid, flush fluid if there remains any old and dirty fluid.

Magnetic Power Steering In Line Magna-X Filter Installation on Hummer

  1. This is a filter installation in a vehicle without a power steering filter.  Replacement of the filter is simpler but this video shows the basics about inline filters.
  2. Find the power steering return line- from power steering box to reservoir.
  3. The filter is installed on the hose between the power steering box and power steering reservoir. 
  4. To replace the filter (not shown in these steps)
    1. Remove fluid from system.
    2. Loosen the hose clamps on the old filter.
    3. Remove the old filter.
    4. Install new filter – be sure arrow showing fluid flow is going toward the power steering reservoir.
    5. Tighten the hose clamps on the new filter
  5. Fill reservoir with appropriate fluid.

Power Steering Filter Install on Lexus

  1. This is a filter installation in a vehicle without a power steering filter.  Replacement of the filter is simpler but this video shows the basics about inline filters.
  2. Find the power steering return line- from power steering box to reservoir.
  3. The filter is installed on the hose between the power steering box and power steering reservoir. 
  4. To replace the filter (not shown in these steps)
    1. Remove fluid from system.
    2. Loosen the hose clamps on the old filter.
    3. Remove the old filter.
    4. Install new filter – be sure arrow showing fluid flow is going toward the power steering reservoir.
    5. Tighten the hose clamps on the new filter
  5. Fill reservoir with appropriate fluid.

 

Student Worksheet

 

Questions for after reading and watching all resources

 

What may happen if no power steering pump filter is used or fluid is not changed regularly?

 

 

 

 

What indicates what type of power steering pump filter is used in a vehicle?

 

 

 

 

What safety precautions are required while replacing the power steering pump filter of a vehicle?

 

 

 

 

 

What tools and parts are needed?

 

 

 

 

 

 

 

 

 

 

What are the steps to replace the power steering pump filter in your vehicle?