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What would cause a grinding or rattling sound when the car is idling?
Wiki User
∙ 12y ago
Could be the heat shield on the catalytic converter
May be a bad bearing in one of the belt driven accesories i.e.
Water pump
Alternator
Belt tensioner
Idler pulley
etc.
Wiki User
∙ 12y ago
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Any ideas on what may cause a rattling sound when going over bumps that progresses to metallic dragging sound during AND after braking The grinding metallic sound is intermittent but getting worse?
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probably air compressor for load leveling look behind side panel hatches behind back seats
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Something is out of balance, maybe the water pump is on its way out.
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What can cause a rattling sound on a 2007 hummer h3?
Check the heat shield on the catalytic converter Check exhaust hangers
What would cause your van to make a pulsating sound while its idling?
Check your cooling fan motor. If it is no good when it goes on it will make a pulsating sound.
