Auto Shifting

[ckillls]

I have a 06 gmc z71 it will really haul ass when it drops down and goes but hard to get it to drop down so i been doin it manually but is that safe like doin 70 then dropin to 3 if that dont do it drop to 2 that allways does the trick any pointers on how to make it drop down everytime i mash on it without doin this? its got the 4l60E or wutever it is.

[stadt11]

Why do you want it to down-shift so much & so often? If you're talking about a "delay" from the time you punch it to the time it down-shifts, then you'll need a tune to get rid of that. Also, if you do that much mashing, I'd recommend a corvette servo to clean up the firmness in your shifts.

 

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It may also help us too if you can break your phrase(s) up into sentences (easier on my eyes to read & my brain to comprehend)

[ckillls]

It has a tune and it shifts firm enough from that Im not talkin about a delay it has good throttle response. Im talkin about the trans drop down. It takes off every time I give it gas sumtimes it drops down sumtimes it dont why?

[superjim]

It has a tune and it shifts firm enough from that Im not talkin about a delay it has good throttle response. Im talkin about the trans drop down. It takes off every time I give it gas sumtimes it drops down sumtimes it dont why?

 

 

Your transmission is electronically controlled for downshifting during all "NORMAL" operations. It is all based on throttle position, and vehicle speed.

 

The programming is slightly different, depending on what position the shift lever is in.

 

Thats why you can move the shift lever down to a lower gear and it will drop down...even when it DIDN'T drop down when you stepped on it.

 

Downshift points...the dropping back to a lower gear, can be adjusted thru the Transmission Control Module.