In-Vehicle Testing

1983-85 MODELS

Amperage Draw Test
Perform amperage draw test, refer to "Bosch, Mitsubishi & Nippondenso Starters" section. Amperage should be 165-180 amps for 1983-85 models with 6-225 and V8-318 engines, 180-200 amps for 1983-85 models with V8-360 engines.

Fig. 3 Circuit resistance chart. 1980-85:

Circuit Resistance Test

1. Connect voltmeter leads across each connection shown in circuit resistance chart.
2. If readings are higher than specified, clean or repair connection, then repeat test.



Starter Solenoid Test

1. Connect heavy jumper wire on starter relay between battery and solenoid terminals.
2. If starter does not crank, or solenoid chatters, check wiring and connectors from relay to starter for loose or corroded connections, then repeat test.
3. If engine still will not crank, repair or replace starter as necessary.

Starter Relay Test (Automatic Transmissions)

1. Place transmission in Neutral, then connect jumper wire on starter relay between battery and ignition terminals.
2. If engine does not crank, connect a second jumper wire on starter relay between ground terminal and good ground.
3. Repeat test. If engine cranks, transmission linkage is misadjusted or neutral safety switch is defective. If engine does not crank, starter relay is defective.


Starter Relay Test (Manual Transmissions)

1. Depress clutch pedal, then connect suitable jumper wire on starter relay between battery and ignition terminals.
2. If engine cranks, starter relay is satisfactory. If engine does not crank, connect a second jumper on starter relay between ground terminal and good ground, then repeat test.
3. If engine does not crank, starter relay is defective and should be replaced.