SPendrey Posted December 6, 2010 Share Posted December 6, 2010 In an effort to diagnose a sound that is getting progressively louder, and more and more worrying to me, I pulled the aux belt off 'cos I think one of the pulleys is going south. Main noise is what sounds like low frequency rumble (obviously not the normal engine sound!) a bit like a pulley being lose and vibrating. So, to check I pulled the belt off and ran the engine... no noise! Next, I gave each pulley a few turns to 'feel' or hear the noise, the only one that makes a noise that I'm not sure about is the power steering. It makes a sort of click noise as I turn it, not loud, but imagine a fan turning with something just clipping the blades. If this is normal, then the bottom pulley (which I guess drives the whole belt assembly) is the only one I can't turn by hand... and I suspect is quite important! :-) Quote Link to comment Share on other sites More sharing options...
SPendrey Posted December 6, 2010 Author Share Posted December 6, 2010 Just read this too... not so sure I've a pump problem, more a belt problem. I go through aux belts every 6-9 months, so suspect an alignment problem now. Quote Link to comment Share on other sites More sharing options...
fozsug Posted December 7, 2010 Share Posted December 7, 2010 Have a look in youre power steering resevoir, see if the oil has a "metalic" look to it. If so its youre pump bearing on the way out. Had the same on mine a while back, a distinct rumble, when i took the belt off i couldn't hear or feel anything. Two days later pump went on the Motorway, oil everywhere, horrible sqeakling noise like a cat was being strangled! Quote Link to comment Share on other sites More sharing options...
SPendrey Posted December 7, 2010 Author Share Posted December 7, 2010 Have a look in youre power steering resevoir, see if the oil has a "metalic" look to it. If so its youre pump bearing on the way out. Had the same on mine a while back, a distinct rumble, when i took the belt off i couldn't hear or feel anything. Two days later pump went on the Motorway, oil everywhere, horrible sqeakling noise like a cat was being strangled! Ah, that's interesting... I did check the fluid yesterday and it is clearly very dark brown, a bit burnt smelling, and maybe metallic looking? Very shiny and reflective for sure! Quote Link to comment Share on other sites More sharing options...
fozsug Posted December 7, 2010 Share Posted December 7, 2010 Ah, that's interesting... I did check the fluid yesterday and it is clearly very dark brown, a bit burnt smelling, and maybe metallic looking? Very shiny and reflective for sure! I would say that youre pumps on the way out! ANR2157 Quote Link to comment Share on other sites More sharing options...
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