I see no forum for this so I am posting in the lounge.

[rzemanfl]

2010 Hyundai Accent I bought new, about 72K miles. The most reliable car I ever owned, now has a problem. Every month or two it will stall and refuse to restart until some time has passed, when it won't start it doesn't fire at all. After ten minutes or so it fires right up. It also sometimes starts a little hard, then the tachometer doesn't work. The tach works the next time I start it. I am thinking it is the computer failing. Since COVID hit it has been driven mostly on short trips although I did one trip of around 3K miles in the spring. Plugs and such should still be good. It mostly runs fine but I can't trust it and right now am unable to do much with it until I get some back surgery done in late December. Trading it on a new Hyundai is an option but I would rather avoid that. I need a reliable vehicle until my herniated disk is fixed and I recover from the operation.

Any thoughts or similar experiences, with or without results, would be appreciated.

[question everything]

1. Not a forum but a group: Recreation/ automobile enthusiasts

[rzemanfl]

14. Thanks, I will cross post.

[mahatmakanejeeves]

2. Take it to Autozone or Advance Auto and have it scanned for free.

Also, do you feel confident checking the fuel pressure in the supply line? It's easy on many cars. I don't know about yours.

edited: also, what question everything said.

[rzemanfl]

15. Way beyond my skill set, which stops at replacing wipers.

I will take it to Auto Zone and the one Florida mechanic I trust.

[multigraincracker]

3. Some auto parts stores now do free

computer scans. You can get the codes that show and start there. Does not always work as some items only show up when they are happening.

Would be where I would start. Just go into the local auto parts store and ask if they do free code checks.

Let us know how it works out.

[rzemanfl]

18. I will do that. The thing is, I can barely walk. n/t

[Walleye]

4. I will be interested in what you find out. I have a 2012 Hyundai Accent 50,000 miles.Great, so far

[rzemanfl]

12. I got the last year before they made them nicer looking.

I have loved mine. I bought it as a commuter car, then got pissed off and retired early. My only regret is not putting up the money for cruise control because I figured I would just be driving it on city streets to and from work for 4 years. I planned on getting something much nicer with all the money that would have been in my DROP account if I'd kept working.

Is there DUer named Sauger?

[Walleye]

16. The car before this was a Hyundai I can't remember what year

Also an accent. 2008 maybe. But I had a job with a lot of driving and I drove drove it to death.It probably looked like the one you have now. I bought this car new the year before I retired. I have put very few miles on it since. Just hoping it lasts for a long time. I love driving it Six speed stick shift. I bought it late in the year 2012 so it might be a 2013 model I don’t think there’s much difference

[cachukis]

5. Fuel filter?

[rzemanfl]

9. That's something I hadn't thought of, but it doesn't fire at all until it decides to

and that doesn't explain the tachometer.

[rzemanfl]

19. I try to drive it far enough so the six month old battery gets a full charge. n/t

[rzemanfl]

10. The battery is about 6 months old and strong. n/t

[taxi]

11. I have seen problems like that.

In those cases the owners had heavy key rings dangling from the switch causing problems with the contacts inside the switch itself. It is a pain to diagnose; sometimes putting a little pressure on the key will cause or resolve the problem. No code reader can find that fault.

[House of Roberts]

13. Always remove the negative cable (black or -) first.

If you remove the positive first and your wrench touches a grounded piece of metal, like a nearby bracket or component, it could cause a short. A large enough arc in the battery area could ignite battery vapors and create an explosion. If your wrench touches ground removing the negative cable, nothing happens.

[Earth-shine]

17. I don't know much about cars. I do know a lot about computers.

Over the years, I've had numerous computers and other electronic devices that behave like your car.

Sometimes they fail and will not restart. Then, just by leaving the device alone for a time, it will start working again.

So, it does sound like you are having some failing of computer chips in the car.

[rzemanfl]

20. That's what I think too. If the mechanic I trust feels up to the job I think I will roll the dice

and replace the computer. I had a '76 Ford Torino that would stop running at highway speeds about every 3,000 miles. I would coast to the shoulder, it would start and run another 3K miles before it did it again. I never bothered to have it looked at, I drove the car to well over 100,000 miles. I was so attached to it that I had a friend drive it to the junkyard because I couldn't bring myself to.

[taxi]

21. Try this.

I have seen problems like that.
In those cases the owners had heavy key rings dangling from the switch causing problems with the contacts inside the switch itself. It is a pain to diagnose; sometimes putting a little pressure on the key will cause or resolve the problem. No code reader can find that fault.

Various contacts in the switch power different components - it sounds like you have intermittent power to either the control modules or some of the sensors. In other cases loose connections at power or ground junctions have been found.

[rzemanfl]

22. My key ring is pretty light. I have a spare. I hate to carry both keys with me. I should get another

key made and use it to drive with for a while. It is just a key, nothing fancy.

[bottomofthehill]

23. Does the check engine light come on with the stalls.

[rzemanfl]

26. Every warning light comes on because it is not running. n/t

[bottomofthehill]

27. I had a 2006 kia that had a wiring harness issue

the check engine light would come on and then the engine would stall out. there was a recall on the van and once repaired never had another problem.

[rzemanfl]

28. The problem seems to be with the crankshaft position sensor. I updated my OP. n/t