Annoying noise coming from inlet Mani?!

  1. #1
    Hi all..

    Just wondering, iv got some annoying noise coming from my inlet manifold/throttle body? It's kind of a scraping noise ish.. Spesh when I am under the bonnet and lightly rev, it makes the engine sound unhealthy usually when the engine is cold.. It sounds like a rattle?! Any ideas.. Solutions?