Originally Posted by Huie83
Originally Posted by JustN89
Originally Posted by WyrTwister
Originally Posted by JustN89
I'm a bit surprised that no one has posted a 4T65E failure yet. I haven't had a transmission fail yet, but my 4T65E has me wondering each morning if today's the day that I'll be posting a failure in this thread.
Seems like I remember those letters / numbers . Is it a GM transmission ? Do they have a bad reputation ? From your post , it sounds like it does .
Thanks ,
Yeah, the GM 4T65E transmission is notorious for throwing a P1811- Max Adapt/Long Term Shift code. The reasons for the code are numerous, but seems like most of the time replacing the Pressure Control solenoid fixes it for a bit. In most cases though, once the transmission gets this code, it's signaling the end is coming. It can last another 80k miles, or give up the next day, it's hard to tell. I dropped the pan, installed new magnets, replaced the filter, and installed a shift kit. I don't feel the hard shifts anymore, but it's only masking the problem. One day (who knows when), it will give out on me.
I did the exact same thing on my 4T65E @ 100K. 40K miles later and it's still doing OK. Mine shifts pretty firm with the shift kit but seems to me hanging in there. It hasn't gotten any worse so I'm hoping I can limp it along for another few years.
Mine was at 122k or so miles when I did it last year. I've only put about 1.5k miles on it over the last 14 months but it seems to hold up okay. I have no idea how long this temp fix will hold up, but I figure that makes it just like any other car on the road
.