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Fig. 3: Testing Voltage Drop
Courtesy of FORD MOTOR CO. STARTER GROUND CIRCUIT TEST 1. Disconnect and ground coil wire from distributor cap to prevent engine from starting. Connect remote starter switch between starter solenoid terminal "S" and battery positive terminal. See Fig. 1 . 2. Using a digital voltmeter set on low scale, connect positive voltmeter to starter motor housing. Ensure connection point is clean and free of rust and grease. Connect negative voltmeter lead to negative battery terminal. 3. Engage remote starter switch and crank engine. Observe and record voltmeter reading. Voltmeter should read .2 volt or less. If voltage drop is greater than .2 volt, clean negative battery cable connections at battery and body connections. Retest to ensure problem has been 4. If voltage drop is still excessive, replace negative battery cable(s) as necessary. If battery cables test okay, and starter still cranks slowly or not at all, remove and repair starter motor. BENCH TESTING STARTER NO-LOAD TEST Remove starter. Place starter on bench. Connect a fully charged 12-volt battery, voltmeter, ammeter and remote starter switch to starter. See Fig. 4 . Engage remote starter switch. Starter should rotate smoothly. Ensure voltage and amperage draw is less than maximum specification at 5000 RPM minimum. See NO-LOAD TEST SPECIFICATIONS table. If voltage and/or amperage is higher than specifications, disassemble NO-LOAD TEST SPECIFICATIONS NOTE: Make all voltmeter connections at component terminal rather than at cable or wire end. Application Maximum Amps Volts Capri & Festiva 60 11.5 |