Column shifter goes into "M" too easily"

[coluccim]

Maybe I am too ham ******...

It seems the column shifter goes into "M' easier than I would like. I am commonly 50 feet down the road and notice the tranny is still in 1st.

Is there a way to tighten this up? Anyone else feel the same?

 

[swathdiver]

The shop manual explains how to do this. Charm.li

 

[coluccim]

Thank you.

Any idea which section to look? lol.

 

[Fless]

It might help to know what you're working on.

 

[coluccim]

It might help to know what you're working on.

Sorry - I thought I put it in my signature a while ago...

2011 Tahoe LT 4wd

 

[mikez71]

If you never use Manual mode, perhaps you can make a stopper bracket by the shift linkage on the trans?

But if you still need manual mode, idk... @NickTransmissions - Any way to make the detent going into manual mode stiffer?

 

[Marky Dissod]

Maybe I am too ham shifted (?) ...
It seems the column shifter goes into "M' easier than I would like.
I am commonly 50 feet down the road and notice the tranny is still in 1st.
Is there a way to tighten this up? Anyone else feel the same?

I did find the 2012 Yukon XL's shifter to be a lil 'freer' than other shifters I've ... shifted.
Try pulling back the absolute minimum needed to pull downward, instead of pulling back as far as possible.
Once in 'D', it SHOULD be IMpossible to just shove the shifter downward to 'M', a slight backward pull should be required before moving down;
if not something is definitely missing.

 

[NickTransmissions]

If you never use Manual mode, perhaps you can make a stopper bracket by the shift linkage on the trans?

But if you still need manual mode, idk... @NickTransmissions - Any way to make the detent going into manual mode stiffer?

I have no idea how to do this.

 

[Marky Dissod]

If you never use Manual mode, perhaps you can make a stopper bracket by the shift linkage on the trans?
But if you still need manual mode, idk ...@NickTransmissions - Any way to make the detent going into manual mode stiffer?

I have no idea how to do this.

Know the difference between the physical / mechanical throttle vs the electronic signal throttle?
For the 6L80 and younger automatic geartrains, there is NO longer any physical linkage between the shifter and the transmission.
It's no longer a shifter, it's a glorified fob.

 

[Doubeleive]

Maybe I am too ham ******...

It seems the column shifter goes into "M' easier than I would like. I am commonly 50 feet down the road and notice the tranny is still in 1st.

Is there a way to tighten this up? Anyone else feel the same?

you might need a new spring in the column shifter, the spring is what applies the downward pressure, weak spring would make the shifter not "hold" properly.
on the gmt800's although rare that spring can break and then it has no pressure at all.
if you pull the rubber boot up and look in there you should be able to see it. getting it out and new one in might be challenging.

 

[coluccim]

I did find the 2012 Yukon XL's shifter to be a lil 'freer' than other shifters I've ... shifted.
Try pulling back the absolute minimum needed to pull downward, instead of pulling back as far as possible.
Once in 'D', it SHOULD be IMpossible to just shove the shifter downward to 'M', a slight backward pull should be required before moving down;
if not something is definitely missing.

It really only happens after using reverse. I am just to slow releasing the pullback - I am not even sure if it is needed coming out of "R".

It doesn't slip into "M" without pulling it back (even if it is very slight)

 

[coluccim]

you might need a new spring in the column shifter, the spring is what applies the downward pressure, weak spring would make the shifter not "hold" properly.
on the gmt800's although rare that spring can break and then it has no pressure at all.
if you pull the rubber boot up and look in there you should be able to see it. getting it out and new one in might be challenging.

It looks like the shift handle is readily available, but the "guts" are an eBay item (not a fan of going this route) or ~$140.

part no. 19435091

Perhaps I will dig in there and see if something is amiss of worn.

 

[Marky Dissod]

It really only happens after using reverse. I am just to slow releasing the pullback - I am not even sure if it is needed coming out of "R".
It doesn't slip into "M" without pulling it back (even if it is very slight).

As a former cabbie / livery driver / chauffeur, I'll say this much:
You don't have to pull back as far from 'R' as you do from 'P' ... if at all ...

(Had to rehearse 'R'-'D'-'R'-'D' transitions to keep vehicle escorts cohesive.)

 

[mikez71]

-Maybe- modifying part #505 can do it...

https://www.carid.com/acdelco/gm-genuine-parts-automatic-transmission-manual-shaft-detent-lever-mpn-24234562.html

 

[Doubeleive]

It looks like the shift handle is readily available, but the "guts" are an eBay item (not a fan of going this route) or ~$140.

part no. 19435091

Perhaps I will dig in there and see if something is amiss of worn.

I guess they do not sell the spring separate, which means junk yard trip

 

[NickTransmissions]

Know the difference between the physical / mechanical throttle vs the electronic signal throttle?
For the 6L80 and younger automatic geartrains, there is NO longer any physical linkage between the shifter and the transmission.
It's no longer a shifter, it's a glorified fob.

Did you mean to quote me? If so, perhaps in error?

Also, to clarify: are you saying there is nothing linking the selector shaft on the transmission to the column or floor shifter, such as a shift cable?

 

[Doubeleive]

Did you mean to quote me? If so, perhaps in error?

Also, to clarify: are you saying there is nothing linking the selector shaft on the transmission to the column or floor shifter, such as a shift cable?

I think he means as far as shifting m1-m5, it's electronic

 

[Doubeleive]

i am occasionally prone to being over zealous when dropping it into drive and accidentally going into M, but that's pretty rare and I quickly remind myself to not be so aggressive lol
because it sucks if you go to take off and not realizing you are in m1 it makes for a quick going nowhere fast, while hitting the rev limiter.