I have a problem that started out with the alternator going out. My batteries went dead before I got home. With a new alternator and fresh batteries now the transmission jerks when shifting from second to third and third to forth. It's like it slips then bangs back into gear. Once the tow/haul shift started flashing. I have a superchips flashpaq tuner. I read the codes and cleared them. I still have the same problem and it shoots the codes. The codes are p0603 (kam), p0730(incorrect gear ratio),p2730(trans. friction element), and p1000(more driving required). I never had a problem until the batteries went dead. Any help GREATLY appreciated

 

Not sure how your tuner works but it sounds like the TCM file may be corrupt. I would reload the the tune if that is how the tuner works. If it is a "shift on the fly" tuner, I would remove it and run stock for a while so the truck can relearn the stock tranny info.

DSMMH

 

I put the truck back to stock tune and still have the same problem. Thanks for info.

 

Try to clear the TCM and get it to relearn mode....

Complete power down too...

 

How do you clear the tcm? I disconnected the negative battery cables for 30 minutes and no help. Thanks..

 

I have the exact same problem. Yesterday my alternator failed, the batteries went dead and the truck died. After replacing the alternator and charging the batteries I’m haveing trouble with the transmission, it slips and then grabs between 2<SUP>nd</SUP> and 3<SUP>rd</SUP>. Did you resolve your problem? What was the fix?

 

Try this:

https://www.ford-trucks.com/forums/8...-strategy.html

 

This worked great! The more I drive it the smoother it gets. Thanks for your help.