therock

iTrader: (2)

Need a little help on what table to work in to adjust out a cycle of unlock & lock at 45-ish mph. I use HPTuners.

My foot is hardly touching the gas pedal, it can be flat or a very slight incline.
I run 3:42 gears so I think its trying to decide what it wants at that speed and gear.

I am told to drop the unlock mph a few but I didn't catch where to do it.

This has carried over two transmissions and I keep forgetting about it after I get out of the truck.

Where do I start? Thanks

shupe

iTrader: (7)

From what I recall of my similar issue on my '99 and the fix in EFI live I worked over the TCC pwm min and max tables. Try upping the TCC solenoid min PWM to 80-85% throughout the table and max to 99-100%.

03sierraslt

iTrader: (22)

That affects how fast the converter clutch applies, not when it applies and releases.

Lower the unlock speeds by 3-5mph and see how it feels.
Post up your tune.

therock

iTrader: (2)

Thanks, We flashed another tune for other reasons and it seems to be gone. Gotta drive it more without worrying about it and see what happens.

Minimum throttle release was not changed. Duty cycles and Apply/Release speeds normal were changed, but not for the reason I asked about here.
Also Part & Full throttle and RPM tables were changed.

terravast4

iTrader: (25)

i had to have my mph raised cause i had a long stretch of road on my commute to work and the speed limit was 45 mph and my converter would lock and unlock all the way to work. i think we raised it to lock at 50 or 55 mph