2G Stutters into 4th gear

[GSXvsTSI]

I just built the transmission with IPT shift kit, rebuild kit and all the clutches. I'm using a forced four shift box plus and when I try to shift from 3rd to 4th it jumps all over the place and takes a while to engage 4th. R,1,2,3 work perfect but I have a brand new motor and haven't hit boost either. Any help would be very appreciated!

 

[Dstarperformance01]

4th is electronic shift. Check solenoids and connections and at shifter switch. It is also possible that a seal was rolled in 4th gear drum.

 

[GSXvsTSI]

I just drove it some more and its shifting a lot better. Almost like there was an air bubble that was jacking the shift up. Could an air pocket have caused it? Everything is electrically correct so it'd have to be that seal.

 

[Dstarperformance01]

No, air pocket won't do anything unless the fluid level is low or over filled. Did you use transgel when you reassembled it? Sometimes it takes a few shifts up and down before it shifts correctly. Recheck fluid

 

[GSXvsTSI]

I had only shifted into overdrive a few times, so I bet it was just breaking in. I did lube everything up and I soaked the clutches for a while but they sat in the trans for 1month before they moved. The fluid was a little high so I drained a little out. Thanks for your comments

 

[Dstarperformance01]

Cool. If you used the gel then it takes a little while to disolve. Also, what fluid did you use? Mitsu fluid?

 

[GSXvsTSI]

Dex/Merc I wanted to break it in on that and see how the sinister stalls up to see if I need thicker fluid.

 

[Dstarperformance01]

I see. I would use whatever the manufacturer recommends. Just my .02