So, I’m not sure what’s going on with my transmission. It seems to “grab and let go” repeatedly; almost like surging. This happens at low speed (5mph) and light throttle and when the trans is cold or been sitting for a while.
I’m at 138k miles. Only maintenance done to the trans was a full fluid replacement and filter change. It was not “backflushed”.
What joys await me?
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So I assume since your sig says 2010, you have the 6 speed?
It could be a slight miss causing it, or your valve body needs some service.
the pressure switches usually need to be rebuilt or the techm (control computer) replaced.
There are also lots of improvements for the valve body while you have it out...
How handy are you?
I did mine proactively after doing a bunch of reading about the 6 speed...
then tuned the converter lockup out of the lower gears via hp tuners.