2000 Chevy 3500 5.7 4LE80 - Auto

My tranmission will drop out of 4th gear going down the highway for no reason. If I stop and start again all shifts up to thrid are really hard.

If I shut the engine off and start back up it will work for about 10 minues.

Any ideas?

What nobody know?

Your all fired.

Oh I can not do that. :screwy:

Just kidding.

I will talk to a tranmission guy.

i drive a stick so i cant help except to say be sure you take it to someone who is experienced in these trannys. Whether that the dealer or a large well known shop is your poison but these trannys are more like computers then machinery in your year of truck. Could be a sensor or just a software problem that may need updating in your trucks computer. I have seen other threads about auto trans that just required a flash memory fix at the dealer. either way if you take it to a shade tree mechanic or a small shop not keeping up with new applications you may get hurt...JJ