Squeaks and Screeches

Discussion in 'Tech/Mech General' started by Molls-Phot, Dec 5, 2009.

  1. Molls-Phot

    Molls-Phot Funster

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    My base vehicle is a 2009 Ducato 2.2 100 Multijet. It has done 6,000miles. On a cold start there is a screeching from the engine bay that then disappears when warmed up a bit. The brakes also squeal when coming to a standstill.

    These are of course covered by warranty but I would like to be able to tell them what I suspect the problems are. Can those more mechanically competent than myself please advise?
     
  2. savantuk

    savantuk Read Only Funster

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    Screeching could be:

    Fan belt
    Water pump belt
    Power steering belt
    Alternator belt

    or

    Alternator bearings
    Water pump bearings

    Brakes squealing could be:

    Rust on discs - will go away after a couple of miles
    Discs glazed - Try braking heavily a few times
    Pads worn down to rivets
    A bit of grit twixt pads and disc

    I hope this helps.
     
  3. pappajohn

    pappajohn Funster Life Member

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    the underbonnet noise sounds like a slack/slipping alternator drive belt....
    cold cranking pulls a lot of power from the battery and the alternator is working very hard to replace it and because of the heavy alternator load a slack belt will slip and screach until some power is replaced.

    the brake noise will probably be lack of brake grease/copper ease on the back of the brake pads or the anti-sqeal shims werent fitted at the factory (unlikely)
     
    Last edited: Dec 5, 2009
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