Cooling system sound

Discussion in 'Troubleshooting & Diagnosis' started by GPN, May 11, 2017.

  1. GPN

    GPN Veteran Member

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    Oct 5, 2016
    succesfully installed new water pump & clutch fan over weekend. Added coolant, burped & car running fine & temps are right & steady. But I hear a muffled knocking from System when driving. No sound when I turn car off
     
  2. CorkyE

    CorkyE Veteran Member Lifetime Gold Member

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    Ringgold, GA
    Double check that fan is tight on hub.
     
  3. GPN

    GPN Veteran Member

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    Oct 5, 2016
    Thank you. Checked-tight. And I guess I didn't listen close enough. It makes this noise after I shut off, but only for about 10 or 12 seconds
     
  4. slayer021175666

    slayer021175666 Veteran Member

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    Feb 29, 2016
    Idaho
    Might just be water settling. Might still have a little air in there so, just keep filling radiator if the coolant level drops. I don't think its much to worry over. Many engines make a few (COOL IN MY OPINION!) sounds as they cool down.
     
  5. CorkyE

    CorkyE Veteran Member Lifetime Gold Member

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    Ringgold, GA
    Yep, like slayer said, just air working around in the system. It'll work itself out.
     
  6. GPN

    GPN Veteran Member

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    Oct 5, 2016
    Ok, glad to hear
     
  7. GPN

    GPN Veteran Member

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    Oct 5, 2016
    Good, tnx
     
  8. Twisted_Metal

    Twisted_Metal Administrator Staff Member Lifetime Gold Member

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    Bloomington, MN
    Sea Monkeys...
    They should cook down with no further problems. ;)

    You're good because you know to watch the coolant level and temp until they're gone.
     
  9. GPN

    GPN Veteran Member

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    Oct 5, 2016
     
  10. GPN

    GPN Veteran Member

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    Oct 5, 2016
     

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