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.
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HOMESERVICE MANUALSFORD1987ECONOLINE E350, VAN DISPLAY, 4.9 YREPAIR AND DIAGNOSIS (SINGLE PAGE)ENGINE PERFORMANCETUNE-UPIGNITION SYSTEM - DURA-SPARK IITESTINGPICK-UP COIL & DISTRIBUTOR WIRING HARNESS
1987 Ford Econoline E350, Van Display, 4.9 Y
Pick-Up Coil & Distributor Wiring Harness
1987 Ford Econoline E350, Van Display, 4.9 YSECTION Pick-Up Coil & Distributor Wiring Harness
- Separate control module 4-wire connector and inspect for corrosion or damage. Connect ohmmeter leads to harness connector terminals that mate with Orange and Purple control module wires. Wiggle wiring harness when measuring resistance.
- If resistance is 400-1300 ohms, proceed to CONTROL MODULE-TO-DISTRIBUTOR WIRING HARNESS test. If resistance is less than 400 ohms or more than 1300 ohms, proceed to PICK-UP COIL RESISTANCE test.
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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.