jay_rich
June 22nd, 2015, 04:58 AM
Here are some specs
2005 5.3L, Ls6 cam, gt45 turbo
3.23 rear
1997 4l80e rebuilt with hd2 kit
Precision industries 3800 triple disk
Everything seems to be good except when im pulling away from 1st gear. You can hear a grinding/rattling noise until like 5mph or so. unsure if its a line pressure issue?
Basically took a stock 2002 van 4l80e tune, upped the line pressure around 5-10%, upped the shift points and lowered the desired shift times.
I have never tuned an auto before. Any help?
Thanks
Jay
My current tune (bit rich) and latest log is attatched. Mind you the log is mostly 4th gear with a couple 1-2-3 shifts later in the log. Dont mine the 4 degree retard, Im thinking my exhaust touching the frame rail and poly mounts are causing that.
18544
18545
2005 5.3L, Ls6 cam, gt45 turbo
3.23 rear
1997 4l80e rebuilt with hd2 kit
Precision industries 3800 triple disk
Everything seems to be good except when im pulling away from 1st gear. You can hear a grinding/rattling noise until like 5mph or so. unsure if its a line pressure issue?
Basically took a stock 2002 van 4l80e tune, upped the line pressure around 5-10%, upped the shift points and lowered the desired shift times.
I have never tuned an auto before. Any help?
Thanks
Jay
My current tune (bit rich) and latest log is attatched. Mind you the log is mostly 4th gear with a couple 1-2-3 shifts later in the log. Dont mine the 4 degree retard, Im thinking my exhaust touching the frame rail and poly mounts are causing that.
18544
18545