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Hello,
I just replaced my 4L60E transmission and I seem to have a 3-2 downshift flare. All other up and down shifts function correctly. When I view the scan log it clearly shows the pressure...

Hello,
Trying to diagnose why my Suburban slips/free revs under low speed-high load WoT instances. Typically I'll be driving less than 25 mph and I romp on the throttle and the transmission just...

Hello,
This is my first tune and my first post.
I have a 2003 Suburban 1500 2WD with an LQ9, slightly shaved 243 heads and the GM Hot Cam kit 219/228. Got a highly modified 4L60E behind it running...