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Sounds like my 02 Blazer has a supercharger but definitely doesn’t

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Sounds like my 02 Blazer has a supercharger but definitely doesn’t

  #11  
Old 01-09-2020, 12:05 PM
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Sounds like bearing whine or fan clutch. Loosen the belts and spin all the pulleys and idler pulley. Push and pull on each pulley and check for end play. If you can't locate it then you probably just have to wait for the failure - could be tomorrow, could be 5 years.
 
  #12  
Old 01-15-2020, 08:45 PM
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Originally Posted by Linus Hulet View Post
My blazer (LS 2002 2WD 4.3 vortec) sounds like it’s supercharged whenever I get to high rpms. Any ideas??
check the Ac compressor, that’s what was causing mine to sound like that
 
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