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  • 1 Post By cffisher
  • 4 Post By 34_40

Thread: 89 K-10 Rattling noise in front of engine

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  1. #1
    kolt is offline CHR Junior sMember Visit my Photo Gallery
    Join Date
    Aug 2020

    89 K-10 Rattling noise in front of engine


    I have an 89 305 Chevy engine which came out of a K-10 pickup and onto a 36 Chevy sedan. There is a rattling noise which sounds like it's coming from the front. It's using the original steel accessory bracket in front of the engine which GM had an issue with them cracking so I don't know if that is related.

    Does anyone have an idea of where it's coming from? Thank you.

    Here is a video of the noise and the engine running -

  2. #2
    cffisher's Avatar
    cffisher is offline CHR Member Visit my Photo Gallery
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    Jan 2006
    Car Year, Make, Model: 57 chevy 2 dr wagon

    IMO its water pump or A/C compressor. Turn on A/C and see if it changes. Look at WP and see if it is wobbling.
    36 sedan likes this.
    Lovin' what I do and doing what I love
    Some guys can fix broken NO ONE can fix STUPID
    Christian in training

  3. #3
    34_40's Avatar
    34_40 is offline CHR Member Visit my Photo Gallery
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    Sep 2007
    New Bedford
    Car Year, Make, Model: 34 Ford 3W Coupe Replica

    I couldn't really hear it in the video. But, an easy test would be to remove the drivebelt and run the engine.
    If the noise goes away - you'll know it's an accessory, water pump, A/C compressor, Power steering pump, alternator....

    Simple to do and once the belt is off you can spin by hand the pumps and alternator - you may feel a problem there.

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