berettaman

I posted this originally in the 3rd gen engine/drivetrain section but it didn't get much response. Maybe it will do better here.

Lately I notice that when I'm driving down the road and the tranny isn't up to temp yet, sometimes it will shift out of overdrive and the overdrive lockout light comes on along with the transmission service light. You can also hear the "ding" in the dash panel when it does this. It usually only does it for a few seconds and then goes back to normal. It does it even in tow/haul mode. It's getting to where it does it more often also. Normally, when the transmission gets up to temp it quits doing it altogether. It seems to happen the most right after I make a turn. I checked the fluid and it is at the correct level and is clean. I just put a new solonoid and sensor in it about 6-8 months ago because it wouldn't shift out of first gear. That problem went away but now this. I think I may have another sensor going out. I don't remember the code that is showing but I remember looking it up once before and it lead me to believe it could be the sensor again.

Anyone have this happen before? The tranny works to well for it to be something to major.

Any help appreciated.

thanks
Dave

rebal

you might check with the dealer if there is a reflash for the computer my sons 06 was doing the same thing as I remember his got a reflash and a sensor change

berettaman

I checked the code again. It is P0713, trans temp sensor voltage too high.

Don't know for sure what that means but I think it's the same code I got when the gov pressure sensor went out several months back.

Dave

rebal

that sensor is bad, trans thinks it over heating and down shifts to allow it to work easyer