03' silverado tranny

I am the last person on this ng you want to ask about automatic transmissions! Quite ignorant on the subject actually..............

TransSurgeon rebuilds em' for a living and is our resident expert. By answering the below questions you will help HIM to figure it out, he he he........................

1. Model of truck (1500, 1500HD, 2500, etc.)
2. Mileage
3. Fluid and filter ever changed?
4. Has the truck done this since new?
5. Firm shifting more pronounced when the truck is cold, warm, hot?
6. Any noise associated with the shifts (bangs, clunks, etc.)
7. What exactly did they "overhaul" the first time?

If it's a 1500 with the 4L60e transmission, it normally shifts quite firmly from 1-2 and 2-3 when cold, and softens up as the transmission warms up.

Doc

well there you have it

an 'overhaul' consists of 'replace glazed bands' (never mind that theres only ONE band in a 4L60E)

bet they re-used the VB with the worn TCC regulator valve bore..........................

1. yes at 15k
2. no a little after I purchased it
3. It does not matter, does it whenever
4. Not that Ive heard of
5. glazed bands, replaced

Time to have the PCM scanned for good ol' P1870 eh?

Doc

If u dont mind me asking tanssurgeon, what the VB and TCC? Thanks for the replies btw

VB is valve body. TCC is torque converter clutch.

Kyle

My trans has done that since the rebuild 20K ago. I read about that code here on the NG. I don't have any codes but it really slams the 1-2. I did replace the TPS and that seemed to help somewhat.

The 1-2 is pretty nasty on my wife's truck as well (98' Sonoma SLS w/4.3 and

Doc