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 MANUALSFORD1984ECONOLINE E150, VAN DISPLAY EXTENDED, 5.8 HREPAIR AND DIAGNOSIS (SINGLE PAGE)ENGINE PERFORMANCEADJUSTMENTTUNE-UP - 6-CYLTESTINGHIGH TENSION WIRE RESISTANCE
1984 Ford Econoline E150, Van Display Extended, 5.8 H
High Tension Wire Resistance
1984 Ford Econoline E150, Van Display Extended, 5.8 HSECTION High Tension Wire Resistance
- Loosen wires from spark plugs by twisting spark plug boot carefully to loosen seal on spark plug. Remove wires by pulling on plug boot. Remove distributor cap from distributor, leaving wires connected to cap.
- Using an ohmmeter, check resistance of each wire. Connect one ohmmeter lead to spark plug terminal and other lead to distributor cap insert.
- Replace any wire with over 5,000 ohms resistance per INCH. New wires should have a resistance of 7,000 ohms per FOOT.
NOTE:
Whenever a high tension wire is disconnected, spark plug terminal boot interior must be coated with dielectric silicone grease before reconnection.
RENDER: 1.0x
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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.