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Home >> Ford >> 1994 >> Bronco 5.8 H >> Repair and Diagnosis >> External Pages >> Different car >> Section 4 (Engine Controls - System/Component Tests - Gasoline) >> Idle Control System
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Idle Control System

WARNING: This page does not describe the selected car, but rather 11 other vehicles, including the 1993 Ford Ranger, 1993 Ford RV Cutaway, 1993 Ford Pickup, 1993 Ford F-Super Duty, and 1993 Ford Explorer. However, it is still accessible from the selected car via links, so may be relevant.

See IDLE AIR CONTROL (IAC) SOLENOID under SOLENOIDS under RELAYS & SOLENOIDS. Curb idle and fast idle speed are controlled by Powertrain Control Module (PCM) and are not adjustable. Some throttle bodies have a sludge-tolerant design with a special coated throttle bore. A Yellow/Black warning decal on these units warns against backing off throttle plate adjustment screw to avoid throttle plate sticking in bore. Faults in idle control system components or circuit should set a service code. See QUICK TEST in appropriate TESTS W/CODES article in the ENGINE PERFORMANCE Section.

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