1st gear slipping...sometimes
 

I've recently had a problem with my tranny slipping upon take off. The first time it happened everything had been working fine, I parked the truck, came back 20 mins later, started up and backed out of the driveway, put it in drive and it slipped really bad in 1st gear, all other shifts were ok. It did this for a few stops, I parked it and 30 mins later fired it up and I was back to normal. Its been 3 weeks or so with no problems then it happened again this morning on my way to work. Any ideas?? Im mechanically inclined but transmissions are somewhat foreign to me...

Truck is an 03 HO 48re 130k

im having the same issue it seems like its i go from drive to park and then back to drive it works but from my research it looks like the end is near for my trans

Probably starting in 2nd gear. Easiest thing to do is change out the gov solenoid and transducer. They are the usual culprits.

This happened to me again so I paid a little close attention and...IT IS starting in 2nd gear! When this first happend I was really light on the throttle, kinda feathering it to get up to speed, afraid to get in to it and really hurt something. I guess while I was being light on the throttle my figured that it just slipped into second. Yesterday, when it happened again I remained steady on the throttle (not hard) and it was easy to notice that I was starting in 2nd....NO IDEA WHAT THIS MEANS!! ANY HELP?

Still waiting on the sensor/solenoid as well.