Engine Cooling Fan System - Trucks

• Model Identification
• Description & Operation
  • Electric Cooling Fan Control (Light Trucks & Vans)
• Trouble Shooting
  • Preliminary Information
• Scan Tool
• Electric Cooling Fan Circuit Diagnosis
  • Notes
  • 3.4L "U" Series Trucks (MONTANA, Silhouette, Trans Sport & Venture)
    • Notes
    • Description
    • Diagnosis
    • Diagnostic Aids
  • 4.3L, 5.0L, 5.7L & 7.4L "C" & "K" Series Trucks (Escalade, Pickup, Sierra, SILVERADO, Suburban, TAHOE & YUKON)
    • Description
    • Diagnosis
    • Auxiliary Cooling Fan Operates Continuously
    • Auxiliary Cooling Fan Inoperative
    • Diagnostic Aids
  • "P" Series: MOTORHOME (Gasoline Engines)
    • Description
    • Diagnosis
    • Diagnostic Aids
  • "P" Series: MOTORHOME (6.5L Diesel - Auxiliary Cooling Fan Inoperative)
    • Description
    • Diagnosis
  • "P" Series: MOTORHOME (7.4L Engine - Auxiliary Cooling Fan Inoperative)
    • Description
    • Diagnosis
  • "P" Series: Commercial Chassis (Auxiliary Cooling Fan Inoperative)
    • Description
    • Diagnosis
  • "P" Series: MOTORHOME (Gasoline Engines - Auxiliary Cooling Fan Runs Continuously With Ignition On)
    • Description
    • Diagnosis
  • "P" Series: Commercial Chassis & MOTORHOME (Diesel Engines - Auxiliary Cooling Fan Runs Continuously With Ignition On)
    • Description
    • Diagnosis
  • "P" Series: Commercial Chassis & MOTORHOME (Auxiliary Cooling Fan Runs Continuously With Ignition Off)
    • Description
    • Diagnosis
• Wiring Diagrams