RW> RS> Was wondering I recently have one heck of a noise and shake comming   
   RW> RS> from my   
   RW> saturn 1.9liter engine From what i can see at looking at   
   RW> RS> the Belt tensioner  it seems to be Jumping   
   RW> around quiet a bit ,  is   
   RW> RS> it possible that the bearings in the tensioner may   
   RW> be shot and this   
   RW> RS> is what is causing the shake   
      
   RW>Yeup...   
      
   RW> RS> , and the really bad rattle   
   RW> noise , its like the exhaust heat   
   RW> RS> shield is rattling , but if you drive it   
   RW> and idle high the noise   
   RW> RS> goes away ,   
      
   RW>The bearing is worn and loose, but is re-tensioned by the change in engine   
   RW>speed, creating a quiet mode of operation. I'd bet that it will come back   
   RW>at a different, especially higher engine speed.   
      
   RW> RS> its mainly when your at idle or put it in   
   RW> like drive or reverse ,   
   RW> RS> reverse especially it vibrates like crazy I didnt notice any of the   
   RW> RS> mounts on the engine to be bad   
      
   RW>Buy a new tensioner and replace it or have your mechanic do it for you.   
   RW>That should fix the noise and shaking.   
      
   That was my thought also. As I recal the maximum load in on the   
   tensionor with the engien stolled ans runing at Idel. As the engine   
   speeds up the loading on the Tensionor lightens up slightly   
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