Engine loud knocking sound by the power steering pump?

Tiny
BLACKBEARD34GF3D
  • MEMBER
  • 2007 HONDA RIDGELINE
  • 3.5L
  • V6
  • 4WD
  • AUTOMATIC
  • 180,000 MILES
I placed a screwdriver to my ear and could hear a knocking sound when I placed it against the power steering pump, this is the second power steering pump I put in the vehicle, but the noise persists. I took the belt off and checked the pulleys one pulley doesn't turn and one is very stiff, but I didn't feel any vibration in them. I'm wondering what it might be hopefully not a lifter.
Sunday, March 19th, 2023 AT 7:27 PM

3 Replies

Tiny
KEN L
  • MASTER CERTIFIED MECHANIC
  • 44,215 POSTS
Each pulley should run freely, can you tell me which pulley it is? Also, can you please shoot a quick video with your phone so I can hear the noise? That way I can tell for sure what's going on. You can upload it here with your response. Also, with the belt off start the engine for a brief time to see if the noise is still there. That way you can tell if the noise is internal or not.
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Monday, March 20th, 2023 AT 1:24 PM
Tiny
BLACKBEARD34GF3D
  • MEMBER
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Yes, it's the pulley at the bottom in the back, I will try this belt off start tomorrow when it's light out.
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Monday, March 20th, 2023 AT 7:08 PM
Tiny
KEN L
  • MASTER CERTIFIED MECHANIC
  • 44,215 POSTS
Thanks for the video, it helps. I don't think that the power steering pump knocking sounds more like the timing belt guide has broken or the timing belt is about to let go, I do hear a tensioner bearing that is making the squeaking noise. If you remove the belt, it should help confirm the problem. Let me know. Here is how you can change the timing belt in the images below. I would replace the water pump and timing belt tensioners as well. Check out the images (below). Please let us know what you find.
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Tuesday, March 21st, 2023 AT 12:31 PM

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