2004 Chevy Silverado fan blower

2004 CHEVROLET SILVERADO
77,000 MILES • V8 • 4WD • AUTOMATIC
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DEL STEINER
  • MEMBER
  • 1 POST
my fan blower will only work on speeds 1-4. speed 5 does not work at all
Nov 28, 2008 at 11:55 PM
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DOCFIXIT
  • ✓Experienced Mechanic
  • 18,828 POSTS
HVAC mod near motor in air plenum. High speed relay defective in blower resistor module.
Nov 29, 2008 at 4:10 AM
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