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Home >> Pontiac >> 2008 >> Grand Prix GXP >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 2 (Engine Mechanical - 3.8L) >> Diagnostic Information and Procedures >> Drive Belt Tensioner Diagnosis

Drive Belt Tensioner Diagnosis

WARNING: This page is about a different variant/trim than selected.
Step Action Yes No
1
  1. Remove the drive belt.
  2. Inspect the drive belt tensioner pulley or the supercharger drive belt tensioner pulley.
Is the drive belt tensioner pulley loose or misaligned?		 Go to Step 4  Go to Step 2 
2 Rotate the drive belt tensioner.
Does the tensioner rotate without any unusual resistance or binding?		 Go to Step 3  Go to Step 4 
3
  1. Use a torque wrench in order to measure the torque required to move the tensioner off of the stop.
  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 % of the second torque reading?		 System OK Go to Step 4 
4 Replace the drive belt tensioner or the supercharger drive belt tensioner. Refer to Drive Belt Tensioner Replacement  or Drive Belt Tensioner Replacement - Supercharger .
Is the repair complete?		 System OK -
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