Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
1989 Ford Bronco II 4WD, AutomaticFACTORY OEM SERVICE PROCEDURE
Ignition System
- Adjustments
- Component Testing
- System Testing
- Testing - (Dis) - No Start (2.3L)
- Notes
- Test 1, Check ECA For Fault Codes
- Test 2, Check For Spark During Crank
- Test 3, Check Dis Module Pip Out
- Test 4, Check Pip Out Continuity
- Test 5, Determine Missing Spark Combination
- Test 6, Check Plugs & Wires
- Test 7, Check Dis Module VBAT
- Test 8, Check Dis Module Ignition Ground
- Test 9, Check Dis Module Mounting Screws
- Test 10, Check Right Coil Pack Circuits
- Test 11, Right Coil Pack Fault, Isolate Dis Module
- Test 12, Check Right Coil Pack VBAT
- Test 13, Check Right Coil Circuit
- Test 14, Check Pip D At Dis Module
- Test 15, Check Dis Module Coil Drivers
- Test 16, Check Right Coil Pack VBAT
- Test 17, Check Right Coil Circuit
- Test 18, Check Right Coil Circuit
- Test 19, Isolate Dis Module From Pip D
- Test 20, Check Crankshaft Sensor VBAT
- Test 21, Check Crankshaft Sensor Ignition Ground
- Test 22, Check Crankshaft Sensor Pip S
- Test 23, Check Pip Circuit For Short To Ground
- Test 24, Check Pip Circuit For Short To VBAT
- Test 25, Check Crankshaft Vane
- Test 26, Isolate EEC-IV Processor (ECA) From Pip Circuit
- Test 27, Check Pip EEC Circuit For Short To VBAT
- Test 28, Check Pip EEC Circuit For Short To Ground
- Removal & Installation
- Ignition Distributor Overhaul
- Specifications
Factory Service Tools
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When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- • You smell fuel, burning insulation, or see smoke.
- • Brakes feel soft, pull hard to one side, or make grinding noises.
- • The engine overheats, stalls repeatedly, or misfires under load.
- • You are missing required tools, torque specs, or safe lifting equipment.
- • You are not confident in the next step or safety outcome.
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