Odd Transmission Problems

I have a 2000 silverado 5.3, 170,xxx miles. After my recent transmission service (fluid/filter) the truck will not take off from a stop correctly in drive or 3rd. It will move and slowly accelerate until about 10mph than it will drive normal. If I shift down into 1st or 2nd it will take off normally and once i hit about 10-15mph I can put it in drive and it will drive normal until the next stop.

I removed the pan and check for loose/disconnected wires and found nothing out of the ordinary.

Any suggestions?

When in Drive does the engine rev and the tranny slips? weird it wouldnt do this when manually put in 1st but would in Drive

Welcome to AF. May be in default which is a 3rd gear start, have the trans scanned on a trans function scanner for slippage errors and solenoid functions.

Welcome to AF. May be in default which is a 3rd gear start, have the trans scanned on a trans function scanner for slippage errors and solenoid functions.

Thanks. That is what it feels like, its in too high of a gear when I take off. I will get it scanned next time I get to town.