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 MANUALSFORD1984BRONCO L6-300 4.9L VIN K 1-BBLREPAIR AND DIAGNOSISPOWERTRAIN MANAGEMENTCOMPUTERS AND CONTROL SYSTEMSVEHICLE SPEED SENSORTESTING AND INSPECTIONSPEED CONTROL/SPEEDOMETER
1984 Ford Bronco L6-300 4.9L VIN K 1-bbl
Speed Control/Speedometer
1984 Ford Bronco L6-300 4.9L VIN K 1-bblSECTION Speed Control/Speedometer
1980-87 Models Exc. 1983-87 Ranger, 1984-87 Bronco II & 1986-87 Aerostar
1. Disconnect 6 way connector from amplifier assembly, then connect an ohmmeter between dark green wire w/white stripe and black wire on 1980 E-100-350, 1981-83 F-100-350 models and Bronco, and 1984-87 F-150-350 and Bronco, or green and black wire on 1980 F-100-350 and 1981-83 E-100-350 models and 1984-87 E-150-350 at the speed sensor end. A reading of 40 ohms should be obtained. A reading of 0 ohms indicates a shorted coil and an infinity reading indicates an open coil.
2. Replace sensor if a correct reading has not been obtained.
RENDER: 1.0x
NO RELATED
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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.