Car loses power and stalls

I have a 2013 Hyundai Elantra with automatic transmission. Recently the car loses power when trying to accelerate and stalled a few times (flooring it does nothing). The tachometer gets stuck @ 0 while driving regardless of speed and acceleration. I also just noticed today that nothing happens when I try to manually shift gears.

But it doesn’t always happen. Sometimes it works just fine (and the tachometer pops back to life). When I brought it to my mechanic he couldn’t observe the problem and no error codes came up (and didn’t seem to think that there was a problem with the transmission).

Any insight as to what the problem might be or what I should tell the mechanic to look for would be greatly appreciated.

Topic

[EricTheCarGuyKeymaster]

You might check for a restricted exhaust.

You might also find this info helpful. http://www.ericthecarguy.com/faq/solving-automotive-performance-issues

Good hunting and please keep us updated.

[Author]

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