If i accelerate with WOT, when my trans. shifts, it shifts very sloppy and slowly. This does not change if i have the ECT switch set to power...also, it only starts doing it once the engine is completely warmed up and has been warm for at least 5 minutes. I haven't checked fluid levels yet, because it is freezing outside..but that will be the first thing i check. If levels are fine, am i pretty much screwed into taking it somewhere? any ideas what it could be besides a slipping transmission? so scared.....

 

It sounds like your kick down cable is not adjusted properly. Its definitely a tricky process, make sure its done properly.

Kruso

 

if it just started this out of the blue yesterday, could it still be this? normaly when a cable goes out of whack, it happens over time..correct me if im wrong..please
and ty

 

im having the same problem, i have to warm up my car for like 20-25mins or else it shifts all stupid from 1st to 2nd.

 

Ideally your car shouldn't be doing this at all so the fact that it is I would start with the most likely culprit, the kick down cable (its not really a kick down cable on the 3040le's but thats another topic altogether).

Kruso

 

if its not really a kick down cable, what is it? ... having what it actually is will help me find it faster

also, a kick down cable alters pressure in the trans. valve bodies, according to how much pressure is applied to the throttle, creating smoother shifts at less acceleration.. my car isnt doing that, it is shifting slowly, and definatly not smoothly, when at WOT...it still shifts correctly when just accelerating normaly, which leads me to believe it has to be something else

 

I read a thorough article on this a while ago that I can't find right now but its commonly referred to as the kick down cable so it wont make a difference on your search for it. Notice how even lexus does not call it a kick down cable... there's a difference between how that typically operates vs how our 3040le transmissions are setup.

Kruso