4L60E..manual 1st

[V10nacuda]

96 tahoe. It wont hold manual 1st above 2500rpm?? Shifts to second on its own??

WHY??

 

[1997chevydriver]

Normal. Its a fail safe for the Trans

 

[poncho62]

I had a T400 in a 70 Chevelle that did that, shifted at about 4000. After I put a shift kit in the trans, I could wind it up.

 

[FastOrange]

96 tahoe. It wont hold manual 1st above 2500rpm?? Shifts to second on its own??

WHY??

fail safe built into the trans, TransGo makes a shiftkit to delete it.

 

[V10nacuda]

Anybody with a BB tune in their truck know if that tune will eliminate it??

Ive been thinking about signing up for his Pittsburgh tune day..