Diagnostic Procedure

WARNING: This page is about a different variant/trim than selected.

STEP	INSPECTION	RESULTS	ACTION
1	VERIFY IF THERE IS SQUEAL, CLICK, OR CHIRP SOUND Is a squealing, click or chirping sound present?	Yes	Inspect for the followings: Engine oil level Drive belt tension Purge solenoid valve installation Auto tensioner bearing damaged Splash shield or under cover looseness Generator installation (alignment) Repair or replace the malfunctioning part according to the inspection results.
1		No	Go to the next step.
2	VERIFY IF THERE IS RUMBLE OR GRIND SOUND Is a rumbling or grinding noise present?	Yes	Inspect for the followings: Drive belt tension P/S fluid level Repair or replace the malfunctioning part according to the inspection results.
2		No	Go to the next step.
3	VERIFY IF THERE IS RUMBLE OR GRIND SOUND Is a rattling noise present?	Yes	Inspect rattling location for loose parts. Repair or replace the malfunctioning part according to the inspection results.
3		No	Go to the next step.
4	VERIFY IF THERE IS HISS SOUND Is a hissing noise present?	Yes	Inspect for the following: Vacuum leakage Spark plug looseness Intake-air system leakage Repair or replace the malfunctioning part according to the inspection results.
4	VERIFY IF THERE IS HISS SOUND Is a hissing noise present?	No	Go to the next step.
5	VERIFY IF THERE IS RAP OR ROAR SOUND Is a rapping or roar noise present?	Yes	Inspect looseness for followings: Dynamic dumper Intake-air system Exhaust system Repair or replace the malfunctioning part according to the inspection results.
5		No	Go to the next step.
6	VERIFY IF THERE IS KNOCK SOUND Is a knocking noise present?	Yes	Go to the symptom troubleshooting "NO. 13 KNOCKING/PINGING-ACCELERATION/CRUISE". (See NO. 13 KNOCKING/PINGING-ACCELERATION/CRUISE .)
6		No	Inspect for followings: Valve clearance (See VALVE CLEARANCE INSPECTION/ADJUSTMENT .) Variable valve timing actuator Repair or replace the malfunctioning part according to the inspection results. If there are normal, noise comes from the engine internal, inspect for friction gear, timing chain or tappet noise.
7	Verify test results. If normal, return to diagnostic index to service any additional symptoms. (See SYMPTOM DIAGNOSTIC INDEX .) If malfunction remains, inspect related Service Bulletins and/or On-line Repair Information and perform repair or diagnosis. If vehicle is repaired, troubleshooting completed. If vehicle is not repaired or additional diagnostic information is not available, reprogram the PCM if a later calibration is available. Retest.