Isuzu D-Max / Isuzu Rodeo (TFR/TFS). Manual — part 610

ENGINE ELECTRICAL 6D – 47

II. HARD STARTING

1. PINION DOES NOT ENGAGE THE RING GEAR WHEN THE STARTER SWITCH IS

TURNED ON

Checkpoint

Trouble

Cause

Countermeasure

Battery

Discharged

Recharge

Starter circuit

Open or intermittent

Clean and reconnect

Magnetic solenoid switch

Contact points defective

Replace

Magnetic solenoid coil

Open or scorched

Replace

Plunger shaft

Bent or scorched

Bent or scorched

OK

OK

OK

OK

OK

NG

NG

NG

NG

NG

6D – 48 ENGINE ELECTRICAL

2. PINION ENGAGES THE RING GEAR BUT THE ENGINE DOES NOT TURN OVER

Checkpoint

Trouble

Cause

Countermeasure

Battery

Weak

Recharge

Brush and commutator face

contact

Intermittent

Repair or replace

Face dirty

Clean

Pinion clutch

Slippage

Replace

Armature field coil

Open or short circuit

Repair of replace

OK

OK

OK

OK

NG

NG

NG

NG

NG

ENGINE ELECTRICAL 6D – 49

3. INCORRECT PINION AND RING GEAR ENGAGEMENT

Checkpoint

Trouble

Cause

Countermeasure

4. STARTER CONTINUES TO RUN AFTER THE STARTER SWITCH IS TURNED OFF

Checkpoint

Trouble

Cause

Countermeasure

Battery

Discharged

Recharge

Pinion and ring gear teeth

Worn or broken

Replace

Pinion gear return movement

Incorrect

Adjust

OK

OK

OK

NG

NG

NG

Magnetic solenoid switch

contact points

Seized

Repair or replace

Starter switch

Defective

Replace

OK

OK

NG

NG

6D – 50 ENGINE ELECTRICAL

5. EXCESSIVE COMMUTATOR SPARKING

Checkpoint

Trouble

Cause

Countermeasure

Brush and commutator face

contact

Intermittent

Repair or replace

Slag accumulation on the face

Clean or replace

Commutator

Excessive wear or pitting

Repair or replace

Loose solder

Clean and repair

Armature shaft

Run-out due to worn bearing

Repair

Brush holder

Loose in mount

Repair

OK

OK

OK

NG

NG

NG

NG

NG

NG