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 MANUALSFORD1990RANGER 4WD L4-140 2.3L SOHCREPAIR AND DIAGNOSISSTARTING AND CHARGINGSTARTING SYSTEMSTARTER MOTORTESTING AND INSPECTIONMITSUBISHISTARTER LOAD TEST
1990 Ford Ranger 4WD L4-140 2.3L SOHC
Starter Load Test
1990 Ford Ranger 4WD L4-140 2.3L SOHCSECTION Starter Load Test
Fig. 4 Starter Load Test Connections:
1. Connect test equipment as shown, Fig. 4, ensuring that there is no current flowing through ammeter and heavy duty carbon pile rheostat portion of circuit.
2. Disconnect push on connectors at starter solenoid and connect remote control starter switch from positive battery cable to S terminal of starter solenoid.
3. Crank engine with remote starter switch and determine exact reading on voltmeter.
4. Stop cranking engine, then reduce resistance of carbon pile until voltmeter indicates same reading as when engine was cranked. Ammeter should read less than 500 amps.
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.