Hyundai Tucson Automotive Service Manual: Troubleshooting

Symptom	Suspected Area	REMEDY
Engine does not start or is hard to start (starter cranks)	Ignition switch control	Check or replace the ignition switch.
	IGNITION COIL	Check or replace the ignition coil.
	Spark Plugs	Check or replace the spark plugs.
	Ignition wire disconnected or broken.	Repair or replace wiring
Rough idle or stall	Ignition Wiring	Repair or replace wiring
Rough idle or stall	IGNITION COIL	Check or replace the ignition coil.
Engine shakes / poor acceleration	Spark plugs and spark plug wires	Check or replace the spark plugs/spark plug wires.
Engine shakes / poor acceleration	Ignition Wiring	Repair or replace wiring
Low mileage	Spark plugs and spark plug wires	Check or replace the spark plugs/spark plug wires.

Symptom	Suspected Area	REMEDY
Charge indicator light does not come on when the ignition is turned on and the engine is stopped	Blown fuse	FUSE INSPECTION
	Burned-out bulb	Replace the bulb
	Faulty cable connection	Repair the faulty connection
	Electronic voltage regulator	If the light goes out, replace the voltage regulator.
Charge indicator light does not go out with the engine running. (Battery requires frequent recharging)	Loose or worn drive belt	Adjust belt tension or replace belt
	Loose, corroded or worn battery cable	Check cable connections, repair or replace cables
	Electronic voltage regulator or alternator	If indicator goes off, replace voltage regulator or alternator.
	WIRING	Repair or replace wiring
Overloading	Electronic voltage regulator	If the light goes out, replace the voltage regulator.
Overloading	Voltage sensing cable	Repair or replace wiring
JUNK YARD	Loose or worn drive belt	Adjust belt tension or replace belt
	Faulty wiring or a short circuit in the wiring	Check cable connections, repair or replace cables
	Electronic voltage regulator or alternator	If indicator goes off, replace voltage regulator or alternator.
	Poor ground	Check the ground or repair it.
	Worn battery	Replace the battery

Symptom	Suspected Area	REMEDY
Engine Does Not Crank	Low battery charge	Charge or replace the battery
	Loose, corroded or worn battery cables	Repair or replace cables
	Rear axle transmission range switch (For vehicles with automatic transmission only)	See AT group Automatic Transmission
	Blown fuse	Replace fuse
	Faulty starter	Replace
	Faulty ignition switch	Replace
Engine cranks slowly	Low battery charge	Charge or replace the battery
	Loose, corroded or worn battery cables	Repair or replace cables
	Faulty starter	Replace
Starter keeps cranking	Faulty starter	Replace
Starter keeps cranking	IGNITION SWITCH	Replace
Starter cranks but engine does not start	Short circuit in wiring	Repair or replace wiring
	Broken starter gear or teeth	Replace
	Broken ring gear teeth	Replace flywheel or torque converter

Troubleshooting