Rattle from right rear | FerrariChat
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Rattle from right rear

Discussion in '308/328' started by ztarum, Mar 29, 2010.

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  1. ztarum

    ztarum Formula 3

    Mar 30, 2008
    1,302
    South Jersey, USA
    #1 ztarum, Mar 29, 2010
    So I've got this annoying rattle I need to stop. It's a definitely a resonance driven sound that happens around 4500 rpm. It seems to be coming from the right rear of the passenger compartment. It sounds like a piece of trim, but nothing in the interior appears to be the source. I'm going to check the engine compartment next. Here is what I have identified as possible culprits to check:
    1) AC hoses
    2) Gas tank strap
    3) Airbox inlet piece
    4) Exhaust heat shields

    Any other suggestions?
     
  2. marc.l

    marc.l Karting

    Feb 25, 2008
    78
    #2 marc.l, Mar 29, 2010
    Could also be the manifold heat shield or the air con clutch or the alternator shield or the starter motor shield, steel cooling pipes hitting the r/h fuel tank, water pump or timing belt bearings or timing belt tensioner.
    Sounds like your describing a rattling heat shield.
    marc
     
  3. tomoshea

    tomoshea Formula Junior

    Dec 29, 2003
    541
    Ireland
    Full Name:
    Tom O'Shea
    #3 tomoshea, Mar 29, 2010
    Last edited: Mar 29, 2010
    I would second the heat shield.

    Washers, loose nuts, you name it, you can even get it with the heat shield over the starter motor.

    Mine occured around 4600/4700 rpm....... I know it is the shield on banks 5-8

    Usually easily fixed just a PITA to find the cause, in any case not of any significant concern though.
     
  4. Steve King

    Steve King F1 Rookie

    Feb 15, 2001
    4,367
    NY
    #4 Steve King, Mar 29, 2010
    My guess is the AC hose. I had the same problem until I redid the AC compressor and moved the hoses a bit. Noise went away.
     

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