- Place transmission in Park. Start engine and warm to normal operating temperature. Turn diagnostic display, A/C and all accessories off. Connect timing light to No. 1 spark plug. Connect tachometer.
- Jump pins A and B in ALDL connector located near the parking brake pedal just below the dash. "Set Timing" message should appear on the Driver Information Center (DIC). This indicates that the ECM is in set timing mode.
- Adjust ignition timing at specified RPM. Tighten distributor housing and recheck timing. Unplug jumper from ALDL connector.
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