EngineDiscussionCommunity Starter

2018 Kia Optima — ticking noise follows RPM but fades when warm

HybridHauler726Community StarterJan 10, 20262018 Kia Optima EXBrooklyn
There is a light ticking sound that follows engine speed for the first few minutes and then becomes hard to hear. Oil level is correct.
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QuietLearner245Community StarterCommunity StarterJan 11, 2026permalink
I'd want a measurement, not a hunch. Two 2018 Kia Optimas can feel identical and have different causes, so measure before you copy someone else's repair. Don't erase codes until someone who can help has seen them. Any freeze-frame data saved? This is me being the wet blanket on purpose.
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