Cooling fans on 454

Discussion in 'General RVing' started by flytyer974, Sep 23, 2004.

  1. flytyer974

    flytyer974 New Member

    Hi. I am new to the forum. I just purchased a 31' Mallard Sprinter. It is in nice shape and the engine sound good. There is one thing that I am not sure of. After I run it a few miles, 2 or 3, the engine sounds like it is running away. The tackometer doesn't change but it is really noisy. Then in a little bit it sounds normal again. Is this normal or do I have a problem?
     
  2. ARCHER

    ARCHER Senior Member

    Cooling fans on 454

    I think it is normal. Probably sounds like a jet engine for a few minutes/seconds and then stops. It is a separate fan that is making this noise.
     
  3. janicenlarry

    janicenlarry New Member

    Cooling fans on 454

    That is your fan clutch kicking in to add extra cooling power. Noisy as hell and they have a history of going bad on the 454.
     
  4. flytyer974

    flytyer974 New Member

    Cooling fans on 454

    Thanks for the reply. I had just about come to this conclusion. It was quite a start when I first heard it. I almost took it back..
     

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