488 - Brake noise was not the brakes! | FerrariChat
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488 Brake noise was not the brakes!

Discussion in '458 Italia/488/F8' started by ohared, Sep 14, 2021.

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  1. ohared

    ohared Formula Junior
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    Apr 14, 2009
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    #1 ohared, Sep 14, 2021
    Last edited: Sep 14, 2021
    I posted a while back about a noise that was linked to forward wheel rotation and seemed to be coming from the rear left hand side. Anyway I now think I have found the cause after jacking up the rear of the car to both wheels could be rotated. It is the rubber pipe #53 on the parts diagram, touching the left hand drive shaft. It is hard hollow rubber tubing connecting into metal pipework. It created a sound mimicking brakes. It only made the sound rotating the driveshaft in forward rotation which is what I was experiencing. Almost like blowing on a "musical instrument".


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    It is a breather hose, I cut it out higher up and the noise is gone. This pipe protrudes through the bottom of the floorpan, I think at the last service this pipe was disturbed, it was not protruding out through the floorpan but was kinked towards the drive shaft.
     
    jdlegg, rw99, Mrpseudonym and 2 others like this.
  2. Viperjoe

    Viperjoe F1 Rookie
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    #2 Viperjoe, Sep 14, 2021
    Could be an evaporative emissions vent. Replace it and route it correctly.
     
  3. Viperjoe

    Viperjoe F1 Rookie
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    #3 Viperjoe, Sep 14, 2021
    Fuel vapors entering the engine compartment not good.
     
    MANDALAY and Melvok like this.
  4. mdrums

    mdrums F1 Rookie

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    #4 mdrums, Sep 14, 2021
    Thanks for following back up with what you found. so many on these types of forums will complain about a noise issue or other issue and never report back on the fix. Kudo's!
     
    AD211 likes this.
  5. MANDALAY

    MANDALAY F1 World Champ
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    #5 MANDALAY, Sep 15, 2021
    IIRC there was a recall on the evaporator. Looks like the install of the new one they didn't take care of the exit hose properly.

    Definitely not a good thing that the vapour hose is ending in the engine bay.

    Logic says why did they replace it. Reroute it the correct way as you might get a bad surprise one day.
     
  6. ohared

    ohared Formula Junior
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    #6 ohared, Sep 15, 2021
    Thanks for all the comments. Mandalay, if you could find the link to the recall on the evaporator that would be great. I can't find it.
    The hose is part of the breather pipe for the power steering pump
     
  7. Viperjoe

    Viperjoe F1 Rookie
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    #7 Viperjoe, Sep 15, 2021
    Call your dealer or check NHTSA website for recalls.
     

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