[bwood]

We bought a new 09 Silverado 4.3L Auto LWB at work. Last Thursday morning, I get in it to move it out so the City can get the dumpster at work, put it in reverse and nothing, wouldn't go. Couldn't even feel it drop into reverse. I put it back in park and tried again, this time it clicked but I had to rev it up to about 3500 and it creeped back. I put it in drive and the same thing. I got it moved and took it for a test drive, with it pulled down in first, as I came to a stop the truck would studder just like a manual when you don't push the clutch in. It wouldn't die, just as the truck stopped, it would let go and act normal. It does this in all gears as it decellerates and quits just before it downshifts. The truck only has 323 miles on it. I took it in of course under warr. Got a call from the service advisor yesterday before they closed, he says it the pump assembly and GM has not released it yet and he doesn't know when they are going to. I believe it has the 4L70E tranny.

I talked to a tranny shop that I have used in the past for personal use and he says that the 4L70E (which he also told me is what comes in these trucks) has an intergrated TCM that is part of the valvebody and should be replaces as an assembly. He has come across this twice since they came out (he does the tranny work for the dealer in question when their guy is covered up or out, he was their tranny guy until he went into business for himself).

Any Opinions???