Engine Starting System - Troubleshooting

~1min read

Symptom Possible Cause Remedy
Engine crankshaft does not turn with starter Low battery charge; Poor contact of battery terminal cables due to rust, wear, or loose connection; Faulty starter lock switch (A/T models only); Blown fuse; Faulty starter; Faulty ignition switch Charge or replace the battery; Repair or replace the cables; Adjust or replace the switch; Replace the fuse; Repair the starter; Replace the ignition switch
Low crankshaft speed when cranking with starter Low battery charge; Poor contact of battery terminal cables due to rust, wear, or loose connection; Faulty starter Charge or replace the battery; Repair or replace the cables; Repair the starter
Starter keeps running after engine starts Faulty starter; Faulty ignition switch Repair the starter; Replace the ignition switch
Starter turns but engine crankshaft does not rotate Short circuit in wiring; Broken pinion gear teeth or faulty starter motor; Broken ring gear teeth (or torque converter of A/T) Repair the wiring; Repair the starter; Replace the ring gear (or torque converter of A/T)

Test yourself

A quick Hyundai Elantra CN7 quiz: every answer comes with an explanation and a link to the manual page.