Try to get 2-3 free estimates ?

I presume you are still in the fruity state south of Georgia.

If you were in Wisconsin, i can advise a lot easier. previous job took me to a lot of mechanics.

One daughter and the youngest of my grandchildren, who, as of yesterday is now an adult, live in Mad City. But I am not old or anything like that....

west side frontage road, there’s a well known mechanic Clausen Automotive.

If the West Side or Middleton or Waunakee, I would ask my brother.

in the world.

autozone, oriely's and see what they say. then maybe pay for a diagnostic at a mechanic. not the battery, right? that can cause some wacky starting issues.

72K is nothing on a modern car, whatever it is is probably worth getting fixed.

the Accent. Battery is about six months old.

Dig deep. These problems are not uncommon.

One possibility is the electronics on your starter may be overheating specifically a solenoid may not connect as a control circuit may not engage until cool enough. That solution is a shield to reduce heat gain.

Another area is the anti theft electronics may be getting confused. For that there may be a reset combo to retry w/o the wait.

Do you have a door clicker or a plastic thing around your key? If yes to either there may be a control module that can get confused, there may be a reset combination of actions and buttons to clear and let the computer check everything with out waiting 10-30 minutes.

The other thing to check is your battery connection to your starter and any electronics between the two. What could be happening is a solenoid (a electronic switch) may get stuck the wrong way until things cool down. I have seen reports of a custom heat shield for some cars for that issue.

And again googling your problem may at least give you some leads, you're the only one caring about your car 24-7, so put in a little effort and you can save yourself some time and money before you go to the mechanic. I'm not suggesting doing your own work, just the research and troubleshooting.

A lot of these modern ghost like automobile problems are the automatic controls and their feedback to the computers.

the problem.

now.

Best of luck going forward.

Taking it to a shop where it can be diagnosed on a computer which will probably correctly determine the issue. It sound electronic and could be an essential component.

You could look on Google and see if there are service announcements about it, could be a recall and a free fix. Worth it to look.

Justy a few years ago the same thing happened. It would be running fine then just stop. I had it towed to the dealer twice and it started right up when they went to work on it. The second time when I was taking it home it quit running a couple hundred yards from the dealership that's when they found it was the fuel pump. The fuel pumps are located in the fuel tank. That is why you shouldn't run your gas tank nearly empty the gas cools the pump.

The fuel pump doesn't explain the hinky tachometer, but I could have two problems, I'm lucky that way....

the coil that was opening up when it got hot. Now days most cars have a coil on each plug instead of one
for all of them though. Good luck.

because of COVID. People put things off.

Turn the key to on (that's on not start) can you hear a short whine, hum or low buzz? If not might be the electric fuel pump or maybe yours is just too quiet to hear.

When you turn the key to start, can you hear the normal sound of the engine cranking or is the sound much higher like it's running faster than it usually would when starting? If it's higher, the starter may not be engaging.

In the past that number of miles might have also warranted checking the timing belt.

Mostly this sounds electrical.

I agree with others here that suggested having the OBDII scan and paying for diagnostic check up.

Good luck.

No unusual noises. It just doesn't fire.

Diagnostics probably best course.
Did this start after having some any work done?

Lookup your symptoms along w model. See what years the car was the same to be able to search each of those model year combos. These problems are not uncommon.

One possibility is the electronics on your starter may be overheating specifically a solenoid may not connect as a control circuit may not engage until cool enough. That solution is a shield to reduce heat gain.