Power steering tester

Types of Power Steering Testers

Power steering testers are devices used to check the conditions and performance of power steering systems in vehicles. There are several types of power steering testers, including:

• Electric Power Steering (EPS) Testers

  EPS testers are designed to be used on electric power steering systems. These testers can read and simulate the signals that the steering ECU receives from the steering angle sensor. Additionally, they can communicate with the EPS ECU to perform diagnostic functions, such as reading error codes, performing active tests, and updating software. Some EPS testers also have a function to test the torque sensor, which measures the driver's effort in the steering wheel.

• Hydraulic Power Steering (HPS) Testers

  HPS testers are used to test hydraulic power steering systems. These testers can measure the pressure and flow of the hydraulic fluid in the power steering system. They can also measure the assist level and check the steering effort at different angles. Additionally, HPS testers can detect leaks and check the condition of the hydraulic fluid and filters.

• Steering Wheel Turn Torque Testers

  These testers measure the torque required to turn the steering wheel. They can assess the steering system's performance by measuring the steering effort and comparing the results to the manufacturer's specifications. Steering wheel torque testers are often used to detect power steering system issues, such as binding or increased steering effort due to component wear or failure.

• Flow Meters

  Flow meters measure the hydraulic fluid's flow in the power steering system. They can help diagnose issues related to steering assist levels or changes in the steering system's performance. By measuring the flow rate, technicians can determine if the power steering pump is functioning properly or if other components are causing restrictions or increased resistance in the system.

• Pressure Gauges

  Pressure gauges are used to measure the pressure of hydraulic fluid in the power steering system. They can monitor the pressure at various points in the system, such as the pump outlet or the steering gear inlet. By measuring the pressure, technicians can diagnose problems like inadequate steering assist or pump failure. Pressure measurements can also help identify restrictions, leaks, or other issues affecting the power steering system's performance.

Specification and Maintenance of Power Steering Tester

There are several specifications to a power steering fluid pressure tester that are worth noting:

• Pressure and Vacuum Gauge

  Power steering testers have pressure and vacuum gauges that measure pressure in the hoses and tanks of the steering system. The readings on the gauge help identify any blockages in the steering system that may limit the flow of power steering fluid. They also help detect any leaks in the system. The tester's gauge has a pressure capacity that exceeds the maximum pressure that the steering system can generate.

• Test Adapters

  Power steering testers come with several test adapters that connect the tester to the steering system. The adapters are compatible with different power steering fluid reservoir openings for a more accurate steering fluid pressure test.

• Flow Meter

  A flow meter on a power steering fluid flow tester measures the flow of power steering fluid through the steering system. It indicates whether the steering fluid pump is working well. If the pump is faulty, the flow meter will register an abnormal reading.

Power steering testers require regular maintenance to ensure they are in good working condition and give accurate readings.

• Cleaning

  Keeping the power steering fluid tester clean is important, especially after using it to test a steering system. Oil and dirt residue may affect the accuracy of the tester's readings. Wipe the surface of the tester with a clean and dry cloth. The hoses and tubes can be washed with warm water and soap.

• Calibration

  Power steering testers need regular calibration in accordance with the manufacturer's guidelines. The calibration is done so that the gauge's and flow meter's readings remain accurate.

• Inspecting

  It is important to regularly inspect the power steering fluid pressure tester in order to detect any damage. Look out for cracks on the tester's body, which may be the result of dropping it accidentally. Another thing to inspect is the hoses and tubes for any wear or leaks. A damaged hose may lead to inaccurate readings when testing the steering system.

How to Choose a Power Steering Tester

When buying a power steering test machine, consider the following factors:

• Type of Tester

  As discussed earlier, there are two main types of power steering test machines. The electronic tester provides more accurate results and is easy to use. On the other hand, the manual tester is affordable. Consider the budget, desired accuracy level, and ease of use when selecting the type of tester.

• Compatibility

  Ensure that the power steering fluid test machine is compatible with the vehicle's power steering system. For instance, if the car uses electric power steering, the tester should be designed to test and diagnose EPS systems.

• Features

  Different power steering fluid testers have various features. Some have pressure gauges, flow meters, or diagnostic displays. Choose a tester with features that meet the specific needs and budget.

• Portability

  Consider the power steering fluid tester’s portability. A portable tester is lightweight and compact. It can easily fit into the workshop or home and be carried around. A portable tester is easy to use in different locations and is convenient for on-the-go diagnostics and testing.

• Ease of Use

  Some power steering testers are complex and require expert knowledge to use. When buying the tester, consider the ease of use. An easy-to-use steering fluid tester has simple controls and clear instructions. It also has an intuitive interface, making it easy for the users to understand and operate without requiring much expertise or special knowledge.

• Accuracy and Reliability

  Choose a power steering fluid tester with high accuracy and reliability levels. The tester should provide consistent and precise results. This ensures that the power steering system's condition is accurately assessed. This helps in making informed decisions and taking the necessary actions.

• Budget

  Different power steering testers have various prices depending on the features and type. Set a budget and stick to it. Avoid overspending by looking for a tester with desirable features within the budget.

• Calibration and Maintenance

  Consider the calibration and maintenance requirements of the power steering fluid tester. Some testers require periodic calibration to maintain accuracy. Additionally, some testers have specific maintenance needs to ensure proper functioning. Choose a tester with minimal calibration and maintenance requirements.

How to DIY and Replace Power Steering Tester

Here is a step-by-step guide on how to DIY and replace power steering testers:

• Read the instruction manual that comes with the steering power tester.
• Start by collecting all the necessary tools for the job. This includes a wrench set, screwdriver set, ratchet and sockets, and the power steering fluid.
• Once the tools are collected, begin by turning off the engine and putting it into park mode. This will prevent any accidental movement of the vehicle.
• Start removing the cover under the steering wheel using a screwdriver. This will provide access to the power steering components.
• Locate the power steering components and begin loosening them up using a wrench.
• Once loose, attach the power steering fluid tester to the steering pump port and begin testing the fluid according to the manufacturer's instructions.
• After testing, remove the fluid tester and reattach the components that were removed in the beginning.

It is that simple. However, for those who may find it hard, there are numerous professional mechanics who can get the job done.

Q&A

Q1: Do users need a power steering fluid tester?

A1: While a power steering fluid tester isn't mandatory for everyone, it can be beneficial for those who want to ensure their power steering system remains in good condition. Regular checks can prevent expensive repairs down the line. If the steering fluid is clean and at the right level, users probably won't need a tester unless they want to be extra sure.

Q2: Can a non-expert use a power steering fluid tester?

A2: Yes, manufacturers design power steering fluid testers to be user-friendly. The instructions are straightforward, and basic knowledge of the steering system is all that's required. Anyone can check their fluid quality and potentially save on repairs with the tester.

Q3: How often should users test their steering fluid?

A3: Using a power steering fluid tester annually or during regular vehicle maintenance is a good idea. Doing so checks the fluid's condition and ensures the steering system works well. Plus, it's an easy way to keep an eye on the car's health.

Q4: What are the signs of failing power steering fluid?

A4: The fluid's condition can be checked with a power steering fluid tester. Darkening or contaminating the fluid indicates problems. Other signs of failing fluid include a noisy pump, steering that's hard to be precise, or erratic steering. If users notice these symptoms, they should have their steering system checked as soon as possible.

Q5: Is it too late to change the fluid if the car has high mileage?

A5: Changing the fluid is always a good idea, even in high-mileage cars. It can help clean and refresh the system. While it might not reverse damage in older cars, it will improve the system's performance. Preventing further damage is always beneficial.