Sinr98

iTrader: (6)

As the weather got colder and my truck sitting at work for 12 hrs over night my truck takes a few miles of driving before going into OD.
I let the truck warm up for 8 to 10 min, then I drive stoplight to stoplight for about 1 mile then I get on the freeway. It takes about another mile to mile and a half before the trans goes into od. Even after it shifts into OD my trans temp doesn't get above 110* after a 30 min drive. The trans is a custom built 4L65E that is only 4 months old, and I have a custom tune done on it also. I have EFI Live and I will hook it up to it and see if it's a tuning issue but I don't think it is. Has anyone else had this happen to them?

GMCtrk

iTrader: (27)

That's normal. Your truck is in overdrive, but the converter is unlocked. The converter will not lock until the transmission reaches a certain temperature.

LS1TRUCKGUY

iTrader: (7)

same thing here. i gotta drive about a mile and a half before it will lock up

AKlowriderZ71

iTrader: (22)

+1, that's a normal condition.

ap2002

iTrader: (8)

if im not mistaken, the trans temp has to reach 75degrees before it locks up...... i dont know if these can be changed through HPtuners/EFIlive?

Sinr98

iTrader: (6)

Thanks for the replys. I heard it was normal but I never had this in any other vehicle I have owned.