I have a 2001 Hyundai Sonata and recently Ive been having "issues" with it starting. As of now it isn't a huge problem because the car does start every time, its just worrying me because I feel like one of these days it isn't going to. When I turn the key to start it, I need to hold it in the start position for about 5 seconds and let it turn a few times before it actually turns over. It wont start if I simply just turn the key and let it go (like you should be able to do). Im not sure if its the starter or what. It doesn't make any noises, clicks, etc, just the car slowly turning over.When it does start then it runs perfectly fine. Could it be the starter or something else I should check? Wires connecting it to the battery? I have no clue.
Get the battery tested at an auto parts store.
Change the fuel filter, probably overdue anyway.
Let tank get to 1/8 tank, close to empty, then put in two bottles of Techron fuel system cleaner.
When tank at empty put in two gallons, run to close to empty then fill up.
When starting, turn key to accessory position, wait 30 seconds then see if starts. This gives fuel pump time to pressurize system.
If overdue, change your air filter.
Check rubber gasket on gas cap. Probably worn out, replace it, should be a few dollars.
And it might just be the starter wearing out, that happens.
A mechanic may be able to listen to it and make a guess if it is not working properly.
You don't even know how to explain what's happening. When you hold the key is the starter working? You say I need to hold the key for 5 seconds and let it turn before it turns over. If the motor isn't turning over WTF is turning? Turning over means the starter motor is cranking/turning over the motor. Is the motor just not starting? Go have a mechanic check it out. You're to confusing to make heads or tails of anything.
Could be the fuel pump, could be the battery going bad, could be the starter, etc. You could start by taking the battery to Autozone and having it tested, but if the battery is fine you may want to take the car to a mechanic so you don't start replacing all the wrong stuff.