Volvo S40 The S40 is Volvo's most affordable sedan with all the amenities of a luxury sports car.

Grinding Noise at certain RPMs/speeds

  #1  
Old 06-03-2008, 04:35 PM
mch
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Join Date: Jun 2008
Posts: 1
Default Grinding Noise at certain RPMs/speeds

Hello,

I own a 2005 S40 (T5/AWD) and at certain speeds and RPMs it makes a slight grinding noise-- best describedas if I'm driving over a washboard. It happens in the 30-45 mph range, when the RPMs are pretty low (around 1300), and (most consistently) when my foot it lightly on the accelerator. It does it every single time I drive.

Does anyone have any idea what this could be? I've had it checked out multiple times, and the Volvo techs can't find anything wrong with it.

Thanks!
MCH
 
  #2  
Old 06-04-2008, 07:25 AM
Senior Member
Join Date: Apr 2007
Posts: 385
Default RE: Grinding Noise at certain RPMs/speeds

the grinding noise you hear might be the torque converter. When your driving and let off the gas pedal a bit, the trans will maintain the speed your at but drop down in rpms....if this is the case its normal and a lot of cars have it...
 
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