Kotta390
Senior Member
Tonight while driving home I got off the highway, left the truck in 3rd gears going around the clover leaf and nailed it doing 39-40mph. With the 3.92s the truck "should" stay in 3rd and truck along. What actually happened blows my mind. While doing this the truck proceeded to what felt like a violent downshift and then throw the truck into limp mode... I had to come to a stop, shut the truck off so the trans would auto shift into park. Restart the truck and move along.
So before I did this, the EVIC told me to service the trans and had a check engine light on, but no messages in the EVIC?? So after restarting the truck, I babied it home and she drove just like normal, just with a CEL on the whole time. I stopped by and got something quick to eat and after I came back and started the truck the CEL wasn't on anymore. It's been shut off for only ~10-12mins? She still drives fine. Went ahead and went for broke and did two back to back 40mph take offs in 3rd gear and everything worked as advertised.
Wtf just happened?? Lol I'm clueless and usually if you have a CEL then it pops up in the message center but I got nothing? Should I take the truck into the dealership and see if they can find a pending code related to the trans? Or should I leave it alone and chock it up as a "hiccup" in the system?
So before I did this, the EVIC told me to service the trans and had a check engine light on, but no messages in the EVIC?? So after restarting the truck, I babied it home and she drove just like normal, just with a CEL on the whole time. I stopped by and got something quick to eat and after I came back and started the truck the CEL wasn't on anymore. It's been shut off for only ~10-12mins? She still drives fine. Went ahead and went for broke and did two back to back 40mph take offs in 3rd gear and everything worked as advertised.
Wtf just happened?? Lol I'm clueless and usually if you have a CEL then it pops up in the message center but I got nothing? Should I take the truck into the dealership and see if they can find a pending code related to the trans? Or should I leave it alone and chock it up as a "hiccup" in the system?