How long till check engine comes back?

Question

I have a 2009 Hyundai Sonata and recently got that check engine code P0741 which is "Torque Converter Clutch Solenoid stuck off." The car is driving with no issue at all, it shifts fine. All of the transmission repair shops insisted that I need to get my transmission fixed, some said it has to be rebuild.. Anyways, since last time that device was connected to the car computer, and the light was reset (it always reset itself when someone connects the device to it!!) I was driving since then for about 120 miles and the light haven t came back (yet)! will it come back? or since I have been driving that much and it is off, there is a chance it won t come back again and it was just the crazy computer?!

? · Answer

I had that problem for over a year, had it into the shop several times, and finally found the faulty valve.  Hasn't had any problems once the valve was replaced.  Each time, I took it back to the same transmission shop, they never charged for the extra visits, because it was related to the first visit, and was therefore under their shop's warranty until they found and fixed the root cause.  Since then, they've had all my auto business, and word of mouth advertising that resulted in at least another 30+ customers for them.

WRG · Answer

It could have just been a passing problem with the Solenoid. If it doesn't come back on don't worry about it.

Timbo is here · Answer

maybe the solenoid is an intermittent fault and since the last reset it has not yet happened again. These things do not fix themselves and all anyone can say is that it will almost certainly come back on but no one can say when

Skoda John · Answer

I would change the transmission fluid and filter. That may help. A little bit of dirt could have caused it to stick. 
If that works then good luck.

How long till check engine comes back?

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