Hyundai Azera: Spark Plug Repair procedures

Fifth generation HG (2011–2025) / Hyundai Azera 2011-2025 Service Manual / Engine Electrical System / Ignition System / Spark Plug Repair procedures

Removal and Installation

1.	Remove the ignition coils. (Refer to Ignition System - "Ignition Coil")

2.

Using a spark plug socket, remove the spark plug.

Tightening torque :

14.7 ~ 24.5N.m (1.5 ~ 2.5kgf.m, 10.8 ~ 18.1lb-ft)

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

3.	Installation is reverse order of removal.

Inspection

1.

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

2.

Check the electrode gap (A).

Standard :

1.0 ~ 1.1 mm (0.0394 ~ 0.0433 in.)

Spark Plug Components and Components Location

Components 1. Spark plug ...

Charging System

...

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