Kia Carnival (2009+). Instruction — part 128

2. Remove the ignition coil(B).

3. Using a spark plug socket, remove the spark plug.

Be careful that no contaminates enter through the spark plug holes.

4. Inspect the electrodes (A) and ceramic insulator (B).

INSPECTION OF ELECTRODES

Condition

Dark deposits

White deposits

Description

- Fuel mixture too rich
- Low air intake

- Fuel mixture too lean
- Advanced ignition timing
- Insufficient plug tightening torque

5. Check the electrode gap (A).

Standard :
Unleaded : 1.0 ~ 1.1 mm (0.0394 ~ 0.0433 in.)

INSPECT IGNITION COIL

1. Measure the primary coil resistance between terminals (+) and (-).

Standard value: 0.62! ± 10%

2009 > G 3.8 DOHC >

DESCRIPTION

The charging system includes a battery, an alternator with a built-in regulator, and the charging indicator light and
wire.
The Alternator has built-in diodes, each rectifying AC current to DC current.
Therefore, DC current appears at alternator "B" terminal.
In addition, the charging voltage of this alternator is regulated by the battery voltage detection system.
The main components of the alternator are the rotor, stator, rectifier, capacitor brushes, bearings and V-ribbed belt
pulley. The brush holder contains a built-in electronic voltage regulator.

Engine Electrical System

Charging System

2009 > G 3.8 DOHC >

ON-VEHICLE INSPECTION

• Check that the battery cables are connected to the correct terminals.
• Disconnect the battery cables when the battery is given a quick charge.
• Never disconnect the battery while the engine is running.

CHECK BATTERY VOLTAGE

1. If 20 minutes have not passed since the engine was stopped, turn the ignition switch ON and turn on the electrical

system (headlamp, blower motor, rear defogger etc.) for 60 seconds to remove the surface charge.

2. Turn the ignition switch OFF and turn off the electrical systems.

3. Measure the battery voltage between the negative (-) and positive (+) terminals of the battery.

Standard voltage : 12.5 ~ 12.9V at 20°C(68°F)

If the voltage is less than specification, charge the battery.

CHECK THE BATTERY TERMINALS AND FUSES

1. Check that the battery terminals are not loose or corroded.

2. Check the fuses for continuity.

INSPECT DRIVE BELT

Visually check the belt for excessive wear, frayed cords etc.
If any defect has been found, replace the drive belt.

Cracks on the rib side of a belt are considered acceptable. If the belt has chunks missing from the ribs, it should
be replaced.

VISUALLY CHECK ALTERNATOR WIRING AND LISTEN FOR ABNORMAL NOISES

1. Check that the wiring is in good condition.

2. Check that there is no abnormal noise from the alternator while the engine is running.

CHECK DISCHARGE WARNING LIGHT CIRCUIT

1. Warm up the engine and then turn it off.

2. Turn off all accessories.

3. Turn the ignition switch "ON". Check that the discharge warning light is lit.

4. Start the engine. Check that the light is lit.

If the light does not go off as specified, troubleshoot the discharge light circuit.