well, my reliability luck has run out: 2024 C8 DCT issue

[DenisC8]

well, my reliability luck has run out. On my final corvette cruise of the season I got a check engine light, hit the on-star button and ask them to email me the list of codes.

TCM P0797
TCM P0844
ECM P0700

the car drove normal, and after 4 engine restarts, the check engine light went away.

I already had an appointment for an oil change for Nov 4th so I just parked it for 1 week.

Today, the dealership texted that the car needs a new transmission valve body, and that they should have the parts tomorrow.

does anyone know, what is involved in a valve body replacement? do they have to remove the DCT? drain the fluid?

 

[MKC8]

Oh crap. Something to possibly look forward to. Not.

 

[Jack Raccoon!]

Don't know if they pull the tranny, but is a 4.6 hour job...

 

[Zora49North]

Well at least the part(s) we’re readily available to remedy with.

 

[Jack Raccoon!]

Found this quick clip...

 

[Gilles27]

The valve body get plugged because of dirty DCT filter that goes into bypass, what is your mileage and maintenance performed so far on DCT?

 

[DenisC8]

Found this quick clip...

@Jack Raccoon! you are awesome, thank you

 

[DenisC8]

The valve body get plugged because of dirty DCT filter that goes into bypass, what is your mileage and maintenance performed so far on DCT?

my car has 5,700km on it and is just shy of 1 year from the in-service date so there has been no DCT maintenance performed so far.

 

[Jack Raccoon!]

@Jack Raccoon! you are awesome, thank you

Said no one ever lol...

 

[Murray20c8]

Said no one ever lol...

Until now! LOL

 

[Gilles27]

Cam had his orange C8 valve body cleaned and flushed twice

 

[DenisC8]

UPDATE: got my car back on Wednesday evening. DCT seems to be shifting a little bit smother that usual.

 

[Murray20c8]

UPDATE: got my car back on Wednesday evening. DCT seems to be shifting a little bit smother that usual.

That was fast! Good stuff!

 

[yyuksel]

Glad it was sorted out quickly. Hopefully it will be smooth sailing from here on in.

 

[1st Vette]

The valve body get plugged because of dirty DCT filter that goes into bypass, what is your mileage and maintenance performed so far on DCT?

What is your milage and what service have you done and when ? Thanks.

 

[Airbus330]

I had a "clank" when it shifted 2 - 3 and 3 - 4 and sometime s 5 - 6. It have 11k and brought it in for oil and DCT service. They referred to 23-NA-188 "2810175 Transmission control module reprogramming with SPS 0.5..... and it still does it.

 

[DenisC8]

I had a "clank" when it shifted 2 - 3 and 3 - 4 and sometime s 5 - 6. It have 11k and brought it in for oil and DCT service. They referred to 23-NA-188 "2810175 Transmission control module reprogramming with SPS 0.5..... and it still does it.

Maybe take it back to the dealer and request repair?

 

[Jack Raccoon!]

Just leave it, it should sort itself out. In the meantime, can I recommend an extended warranty top up...

 

[Airbus330]

I will for sure. They are waiting back for a ruling on a drivers door seal investigation(seal replacement hopefully.

Hopefully it will sort it self out but I just started noticing it when I was driving with the top up. And yes.... I have 7.8 years left of warranty!

 

[Jack Raccoon!]

Driver's Door Seal Investigation?! I sense a ground stop and major recall happening....