I had my tranny rebuilt at 40k. My shifting since I put the vetter servo is harsh because of the t.m. Do you think that some of it might be that the valve body is set wrong causing odd shifting?

 

Does it shift odd or just harsh. Maybe you PC is not hooked up.

 

when i drive in 3rd a while and then put it into OD it takes it like 10 seconds sometimes to shift. I have to give it some gas to make it shift sometimes. first to second lags sometimes. Its not slipping it just isnt shifting right to me. when i drive it normal it is fine

 

Mine does the OD thing too. I vaguely remember reading a complaint about it, but can't recall the fix. I thought it was a temp thing but found the ECM should show a tranny temp message if it goes into the "save the tranny" mode. Instead of shifting into 4th it will pull in 3rd and freewheel if I let off. It only does it once in a while and does not set any codes.

 

Red2k - My trans. does something similiar if I give it enough gas to drop down a gear it will stay in the gear for a while(10-15 seconds) even after I let off. Then it will finally shift into OD. I've never had that problem with any other vehicle that had a 4L60E in it. I don't think it's the trans. I think it has something to do with the programming. What, I don't know. <img border="0" title="" alt="[Confused]" src="images/icons/confused.gif" />

John

 

Mine does what XLR8NSS described, so it must be normal. Is that the same thing that you are talking about Red2k? Also what's up with the transmission shifting even when I put it in 1st. That is annoying as hell, when trying to "backrack" the exhaust (or whatever it is called.)

 

i don't know much about these trannys but isn't the vette survo just for the 1-2shift?

geting rid of TM should firm up your shifts even more, full power instead of ruduced power would give a harder shift i would think.