Trans Jumping

[mtbraun]

When I put my GN into reverse to back out for a spin, it "jumps" into gear. If I quickly shift from R down to D (even when stopped) it "jumps" into forward motion. I do not hear any clunking noise like it might be a u-joint, but at the same time I have not checked the u-joints either. Any ideas what this might be?

My idle is 850 during this.

 

[usetaboost]

what do you mean? you got your foot on the brake, and you shift into gear and it shifts hard? Is that what's going on?

 

[mtbraun]

yes, sort of slams into gear. Does this from Park to Reverse, and from Reverse to drive.

 

[usetaboost]

Mine goes into reverse and drive kinda hard too. I'd rather have it do that then slip into gear like my iroc used to.

 

[SSedan64]

Check the TV Cable adjustment.
http://www.jakesperformance.com/TV_Cable_Setup_Info.html
http://www.extremeautomatics.com/techinfo.html

 

[overkillphil]

That's a characteristic of the trans. GM put a "garage package" in the 89 TTA's to help deal with this but IMHO its a non-issue as I'd rather it go into gear with "authority" than slide into gear fwiw.

 

[mtbraun]

ok, just wanted to be sure it wasn't a symptom of something more problematic. I'll check the cable adjustment.