[Crash_OK]

Originally Posted by Hart_Rod

Mark - the first thing I would check is the TCC wiring. I'm sure you know this, but on the Gen III motors, the TCC wire should be receive 12v when the brakes are off and then a ground signal when the brakes are pushed. Do you have HPTuners? If so, you can actually set the scanner up to data log when the torque converter is locked or unlocked.

As far as the second problem, that could be an issue with the Force Motor. Actually the more I think about it, they both could be caused by a problem with this. Here's a few threads I found on HPTuners forum:

http://www.hptuners.com/forum/showth...-Highway-Speed

http://www.hptuners.com/forum/showth...ht=force+motor

http://www.hptuners.com/forum/search...earchid=814209

Let me know if any of this helps.

Rob,

Thanks for your help.. The brake switch wiring is fine.. the links you sent me were very interesting. I don't have hptuners, but I am now wondering if I should?

After reading about the force motor I am not sure it is the problem. I am wondering if the TCC lockup problem could be related to TCC apply valve? I found this on ebay.. http://www.ebay.com/itm/4L60E-4L65E-...b07008&vxp=mtr but I think there are more complete kits available.

As for the high shift points after the transmission has been hot for a couple of hours, I am not sure yet.

I need to get to tools to look at the PID's as suggest by boostedc10...

I have another 4l60e in the shop I was going to rebuild someday, so I might pull the valve body out of it and swap to see if it makes a difference.

Thanks...