240sxls1

I have an 04 cts v1 just had the trans rebuilt. Worked great for a week and now it wont shift into 1st or 6th. Has all new shifter bushings. Has an ls7 clutch installed with all new fluid. Any ideas

rjoffe

Who did the rebuild ?
Did you replace the trans mount and or motor mounts ?
Stock Shifter ?

BudRacing

iTrader: (3)

Did you bleed the clutch a little more?

240sxls1

Trans was rebuilt locally. I bled about 3/4 of a bottle thru the clutch and i have cs trans mount

rjoffe

Won't roll into either gear ? i.e. manually sync rpm/speed and slide into 1st ?

240sxls1

Yes thats the issue

rjoffe

What does the local rebuilder say ?

240sxls1

Either clutch issue or gm skip shift but i disconnected that and it made no difference. So now i am checking the clutch mc to see if it is bad

rjoffe

Skip shift would only affect shift into 2nd, it forces 1->4.

If 2-5 shift normally, than I would not think clutch is an issue.

jmilz28

iTrader: (13)

Did you put a new GM slave in it?

240sxls1

No it had a newer ls7 clutch and slave.

jmilz28

iTrader: (13)

Should always replace the slave when you do a clutch, cheap insurance. Could be that but sounds internal to the tranny to me, something wasn't replaced that should have been or reassembled incorrectly so as to prematurely wear syncros. Don't assume the rebuild was perfect.

my_99Z

iTrader: (4)

What shifter do you have in the car?

240sxls1

Pulled the trans out its an internal issue now wont shift into first

84FSP

iTrader: (3)

I would bet on bleeding of the clutch. The LS7 swap is notorious for a time consuming bleed.

BudRacing

iTrader: (3)

Mine took a while, but that was partly because I was using the pumping method when I should have just done a straight down-up, down-up until it was free of bubbles. 82k later and I could stand to flush and bleed again.

240sxls1

I spent a long time bleeding the clutch. Car wont go into first gear even with the trans on the bench