Transmission fix attempt - this didn't go as planned. Help, please...

[Rebel]

That's crazy. All that "sealed" means is that there is no dipstick (except for the one you were talking to).
Yes, it can and should be changed. Find a dealer or a good independent shop that knows more about it. Don't use the dealership that you talked to, and avoid the chain transmission shops.
Most people's driving qualifies as severe usage. See the owner's manual page below that clearly says to change fluid every 100, 000 km (60K miles).

View attachment 46193

Thank you. On the test drive, it drives like a dream. Had plenty of get up and go. Was very quiet. It has been well taken care of. But, years of owning older vehicles, tells me to change that fluid, but I also believe "if it aint broke, don't fix it"....Have never owned a Hyundai before, so am at a loss.

 

[toxicavenger70]

I also believe "if it aint broke, don't fix it"....Have never owned a Hyundai before, so am at a loss.

Any make of car should have the fluid changed with this many miles on it.

 

[𓆩A.A.M𓆪]

Suffering from this problem frequently, every time it is checked with the computer it shows a faulty solenoid, I replace it and it becomes fine, maybe 15 thousand km, then the same problem occurs with another solenoid . The last time, the expert was so bad that he destroyed part of the electronic chip. This is how it looked. I now have to get the whole set

 

[RemyBluePearl]

Suffering from this problem frequently, every time it is checked with the computer it shows a faulty solenoid, I replace it and it becomes fine, maybe 15 thousand km, then the same problem occurs with another solenoid . The last time, the expert was so bad that he destroyed part of the electronic chip. This is how it looked. I now have to get the whole set

When my transmission was shifting hard I replaced the pan with the filter, changed the fluid and all the solenoids at once. Luckily haven’t had that problem since

 

[𓆩A.A.M𓆪]

عندما كان ناقل الحركة الخاص بي يتحول بقوة ، استبدلت المقلاة بالفلتر ، وقمت بتغيير السائل وجميع الملفات اللولبية مرة واحدة. لحسن الحظ لم تواجه هذه المشكلة منذ ذلك الحين

سأستبدل المجموعة بأكملها ، وآمل ألا تتسبب في تلف بعض أجزاء ناقل الحركة

 

[Ghettosled]

translation of above from Arabic - I would replace the entire assembly, hopefully it didn't damage some parts of the transmission.


Giving an update, this originally happened at 118k miles. I'm currently at about 135k and it's still shifting fine. Fingers crossed it stays this way.

 

[R Spect 12]

I received my car back after just over 2 weeks in the shop (we had a couple of snow storms that delayed parts).
The harness was causing the communication issue so was replaced, and they tested the valve assembly which was causing the shift delay, so that was also replaced. $600 was the final bill.

Coincidentally, my rear view camera which hasn't worked for the last year is now working again. Strange. But it's good to have my car driving again after 2 months.

Okay so you did replace the entire valve body and not just the two solenoids 35r & 4od. Question where did you find the valve body ? Was it remanufactured or rebuilt ?

 

[Ghettosled]

Okay so you did replace the entire valve body and not just the two solenoids 35r & 4od. Question where did you find the valve body ? Was it remanufactured or rebuilt ?

Just in case it’s not noticed on the other post - replaced the entire solenoid assembly from a (tested) donor transmission. The trans shop said there was a manufacturing flaw so taking the chance with a new or used unit. He recommended a used unit. I’m now at about 145k miles and all is still good.

 

[shahhere]

Just in case it’s not noticed on the other post - replaced the entire solenoid assembly from a (tested) donor transmission. The trans shop said there was a manufacturing flaw so taking the chance with a new or used unit. He recommended a used unit. I’m now at about 145k miles and all is still good.

Any idea on what the part number is and if this can be a DIY or should I take it to a shop? I dont have a "Local" dealer 40 mins away is the closest and they are expensive....

My 2-3 gear is sticking and shifting slow going up (RPMs jump up) and shifting hard down with a noticable thunk down.....I did hae the fluid replaced about a year ago and maybe 15k miles......

Shahhere