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47RE, strange shifting or just normal?
I recently rebuilt my tranny (47RE). Put in all the good stuff, and new TC, even went ahead and did a Transgo shift kit.
Anyhow, got it all back together according to specs. Drilled out my VB plate a little bigger in certain places in accordance with the instructions. Threw it back in the truck. Did everything right as far as I know. Even made sure the bands were spec, and adjusted the TV cable. So whats the problem?
Well... shifting from 1-2 the trans acts like there's not enough pressure to shift. Like it lugs halfway in between the two till my speed gets up a little more, then it grabs 2. From there, as I'm accelerating in 2, about midway speed before the proper shift point into 3, it kicks out into what I think is 1, then back into 2 with a really hard "ka-chunk". Then at the proper speed (I think), about 30-35 mph, it'll shift into 3, then on into OD as normal as I continue to accelerate.
The trans grabs good in all gears, no slip, firm shifts, runs at proper temp, hasn't thrown any codes, etc.
The only thing that concerns me is that small interval in 2 where it kicks out to 1 and back into 2. Is this normal? Should I not worry? I remember reading about the shift pattern on these things and it fits the pattern, and I remember it doing this before I rebuilt it, but it was so much more subtle, even under WOT. Is this all the shift kits making or am I just nuts and way to much of a perfectionist? :lol3:
Let me know!!! Thanks guys.
I recently rebuilt my tranny (47RE). Put in all the good stuff, and new TC, even went ahead and did a Transgo shift kit.
Anyhow, got it all back together according to specs. Drilled out my VB plate a little bigger in certain places in accordance with the instructions. Threw it back in the truck. Did everything right as far as I know. Even made sure the bands were spec, and adjusted the TV cable. So whats the problem?
Well... shifting from 1-2 the trans acts like there's not enough pressure to shift. Like it lugs halfway in between the two till my speed gets up a little more, then it grabs 2. From there, as I'm accelerating in 2, about midway speed before the proper shift point into 3, it kicks out into what I think is 1, then back into 2 with a really hard "ka-chunk". Then at the proper speed (I think), about 30-35 mph, it'll shift into 3, then on into OD as normal as I continue to accelerate.
The trans grabs good in all gears, no slip, firm shifts, runs at proper temp, hasn't thrown any codes, etc.
The only thing that concerns me is that small interval in 2 where it kicks out to 1 and back into 2. Is this normal? Should I not worry? I remember reading about the shift pattern on these things and it fits the pattern, and I remember it doing this before I rebuilt it, but it was so much more subtle, even under WOT. Is this all the shift kits making or am I just nuts and way to much of a perfectionist? :lol3:
Let me know!!! Thanks guys.