1. Faulty Installation: If the power steering pump was not installed correctly, it could cause leaks. Ensure that the pump is securely mounted and all connections are tight. Incorrect installation of the O-rings or gaskets during pump replacement can also result in leaks.
2. Damaged or Faulty Components: Check for any damaged or faulty components in the power steering system, such as hoses, lines, fittings, or seals. Replace any damaged or worn-out components with high-quality replacements. Inspect the power steering rack and pinion assembly for leaks as well.
3. High Pressure Leaks: If the power steering system is experiencing excessive pressure, it can cause leaks. Check the power steering fluid level and ensure it's not overfilled. Also, inspect the power steering pressure hose for any signs of damage or wear.
4. Defective Power Steering Pump: Although you have replaced the pump multiple times, there's a possibility that the new pumps you installed were defective. Try using a different brand or model of power steering pump to see if that resolves the issue.
5. Internal Leakage: If the power steering pump itself is internally leaking, it could be a manufacturing defect or internal wear and tear. Consider having the pump inspected or tested by a qualified mechanic to determine if it's faulty.
6. Power Steering Fluid Type: Ensure you are using the correct type of power steering fluid for your Jeep Grand Cherokee. Refer to the owner's manual to verify the recommended fluid type. Using an incorrect fluid can cause issues with the pump and lead to leaks.
7. Steering Rack Issues: If the power steering rack or pinion assembly is damaged or worn out, it could be the source of the leak. Inspect the steering rack and check for any signs of damage or leaks around the seals.
8. Return Line Issues: The power steering return line brings fluid back to the reservoir. Inspect the return line for any cracks or damage and replace it if necessary.
It's important to have the power steering system diagnosed by a qualified mechanic to identify the exact cause of the leak and ensure proper repairs are made. Avoid driving the vehicle if the power steering fluid level is low, as it can lead to further damage and safety issues.
