Kia Sorento: Troubleshooting

Kia Sorento (MQ4, 2021-2026) Service Manual / Engine Electrical System / Ignition System / Troubleshooting

Troubleshooting

Symptom	Suspected Area	Correction
Engine will not start or is hard to start (Cranks OK)	Ignition lock switch	Inspect ignition lock switch, or replace as required
	Ignition coil	Inspect ignition coil, or replace as required
	Spark plugs	Inspect spark plugs, or replace as required
	Ignition wiring disconnected or broken	Repair wiring, or replace as required
Rough idle or stalls	Ignition wiring	Repair wiring, or replace as required
Rough idle or stalls	Ignition coil	Inspect ignition coil, or replace as required
Engine hesitates/poor acceleration	Spark plugs and spark plug cables	Inspect spark plugs / cable, or replace as required
Engine hesitates/poor acceleration	Ignition wiring	Repair wiring, or replace as required
Poor mileage	Spark plugs and spark plug cables	Inspect spark plugs / cable, or replace as required

Description and Operation

Description • Ignition timing is controlled by the electronic control ignition timing system. ...

On Vehicle Inspection

On Vehicle Inspection Inspect ignition coil assembly and Perform spark test 1. Check for DTCs. ...

See also:

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