Why is my Kia Niro engine making strange noises?

I recently purchased a Kia Niro and noticed that the engine makes a loud knocking noise when I start it. It goes away after a few minutes of driving, but it's concerning. What could be causing this and is there anything I can do to fix it?

It sounds like you may have an issue with your engine's valve lifter. This can create a ticking or knocking noise when the engine is cold. It could also be a sign of low oil pressure. I recommend taking it to a certified mechanic to have it checked out. They will be able to diagnose the issue and advise you on the best course of action.

It's possible that you may have a worn out serpentine belt. This could cause the engine to make strange noises at start up. You should have it inspected and replaced if necessary. It's a relatively easy and affordable fix that will prevent any further damage to your engine.

I had a similar issue with my Kia Niro and it turned out to be a faulty fuel pump. It was causing the engine to make strange noises and also caused some starting issues. I recommend taking it to a mechanic as soon as possible to avoid any potential problems down the road.