To reset IAC valve, start and run engine for 5 seconds. Turn ignition off for 10 seconds. Start engine and check for proper idle.
Home/Cadillac/Brougham/Cadillac Brougham I (1987-1992)/Repair manual/Adjustments/Idle Air Control (iac) Valve Reset
Contents
Section: Adjustments- Vehicle Identification Number Code
- Engine Compression
- Spark Plugs
- High Tension Wire Resistance
- Carbureted
- Fuel Injected
- Valve Clearance
- 5.0l (VIN Y)
- All Other Engines
- Distributor
- Ignition Coil Resistance (ohms)
- Ignition Timing
- 4.5l (VIN 5)
- 5.0l (VIN E & F) & 5.7l
- Hot (slow) Idle RPM - Carbureted Engines
- Idle Speed with Idle Load Compensator (ilc)
- 4.5L (minimum Idle/minimum Isc Extension)
- 4.5L (maximum Isc Extension)
- Idle Air Control (iac) Valve Reset
- Throttle Position Sensor (TPS) Adjustment
- 5.0L 4-Bbl.
- 4.5L Digital Fuel Injected
- 5.0L & 5.7L Tuned Port Injected
- Idle Mixture Adjustment
- Mixture Screw Plug Removal
- Carbureted - 5.0L (VIN Y)
- Digital Fuel Injection
- Tbi & Tpi
- Fuel System
- Battery
- Service Intervals
- Belt Adjustment
- Capacities
- Abbreviations
- Accessory Drive Belts
- Adjustments
- Antenna Systems
- Application
- Automatic HVAC System
- Automatic Trans
- Auxiliary Emission Control Systems
- Basic Trouble Shooting
- Brakes
- Charging System
- Check Lists
- Computer Relearn
- Cooling Fan
- Cooling System (mechanical)
- Cruise Control Systems
- Diagnostic Connector Locations
- Differentials & Drive Axles
- Door Locks & Anti-Theft Systems
- Driveline/axles
- Driveshaft & Universal Joints
- Electrical
- Electrical Component Locations
- Emission Applications
- Engine
- Engine Performance
- Fuses & Circuit Breakers
- Gauges & Instrument Panels
- General Servicing - All Makes
- Headlights
- Heated Glass/defoggers
- Identification
- Ignition System
- Manual & Power Steering
- MAP Guidelines
- Mechanical
- Mechanical - Hydraulic
- Metric Conversions
- Mirrors
- Procedures
- Removal & Installation
- Reset Procedures
- Rpo Codes
- Seats
- Specifications
- Starter
- Steering
- Steering Column
- Steering Column Switches
- Steering Linkage
- Suspension Front
- Suspension Rear
- Testing & Diagnostics
- Transmission
- Wheel Alignment
- Wiper/washer Systems