Drive Belt Tensioner Diagnosis
 
  
 
 
  
   
    
     |  | Drive Belt Tensioner Diagnosis | 
   
  
  
   
   
    
    
    
    
    
   
   
    
    
     
      
      
      
      
     
     
      
       | Step | Action | Yes | No | 
      
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                    |  Warning |  
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                          Allowing the drive belt tensioner to snap into the free position may result in damage to the tensioner.
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       | 1 
 
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            | 2. | Inspect the drive belt tensioner pulley. 
 
 |  Is the drive belt tensioner pulley loose or misaligned?
 
 
 | Go to 
 
 | Go to 
 
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       | 2 
 
 | Rotate the drive belt tensioner. 
 Does the tensioner rotate without any unusual resistance or binding?
 
 
 | Go to 
 
 | Go to 
 
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       | 3 
 
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            | 1. | Use a torque wrench in order to measure the torque required to move the tensioner off of the stop. 
 
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            | 2. | Use a torque wrench on a known good tensioner in order to measure the torque required to move the tensioner off of the stop. 
 
 |  Is the first torque reading within 10 percent of the second torque reading?
 
 
 | System OK 
 
 | Go to 
 
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       | 4 
 
 | Replace the drive belt tensioner. Refer to
         
          Drive Belt Tensioner Replacement
         
         . 
 Is the repair complete?
 
 
 | System OK 
 
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