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Home >> GMC >> 1998 >> Yukon RWD >> Repair and Diagnosis >> External Pages >> Different car >> Section 124 (Engine Controls - System & Component Testing 7.4L) >> Miscellaneous Pcm/VCM Controls >> Electric Cooling Fan Control

Electric Cooling Fan Control

WARNING: This page does not describe the selected car, but rather 8 other vehicles, including the 1998 GMC Suburban, 1998 GMC Pickup, 1998 GMC Cab & Chassis, 1998 GMC C3500 HD, and 1998 Chevrolet Suburban. However, it is still accessible from the selected car via links, so may be relevant.
NOTE: For electric cooling fan circuit testing, see ELECTRIC COOLING FAN article in ENGINE COOLING section.

All FWD and some RWD vehicles use an electric cooling fan. The electric cooling fan is used for radiator and A/C condenser cooling. Cooling fan operates when A/C is on and when engine coolant temperature exceeds a specific value. One or more cooling fan relays may be used. Some RWD trucks are equipped with an auxiliary electric cooling fan.

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