I thought it went away but it's came back.

When it shifts into 2nd gear it stutters. It can happen when it upshifts or downshifts. I've been letting off the gas slightly before it shifts and it goes in fine and I can get back on the gas. I checked the tps and it tested fine but when I left it unplugged the problem went away for about an hour and came back. The shift solenoid pack was replaced/updated by the dealer 25k ago. I think it is electrical because it seems to eventually learn the wrong shift data. Other than that the tranny works perfectly. If I shift it manually out of 1st it doesn't stutter. I'm not familiar with how this tranny works. I assume it has something to do with components which actuate the automatic 1-2 shift. But then again I'm not at all familiar with this tranny so any input is appreciated.

 

You need to have the van scan for codes in the TCM. There could be an update or you do have a problem and hope its not in the transmission.

 

I am happy to say I found the problem. Originally I suspected the TPS so I tested it. It passed with flying colors and with no codes I moved on. Welp, after 2 months of beating my head against a wall I figured it's cheap what the heck. Sure nuf the stutter went away and the more I drive the better the shifts get.

 

so what was the solution?

 

T.p.s

 

ok so im having a second gear prob with mine....what is tps and will it work for me? it "sometimes" shifts hard into second on decel and hard out on accel

 

Throttle position sensor. It may or may not.