The '02 Tahoe is acting up.
Today, I got in, started it, put it in reverse to back out, no movement...
Put it in Drive, moved a tad forward, put it in reverse, backed up fine.
Turned it off, started it, put in reverse, worked fine.

any ideas of what I should be checking? the fluid looks fine.

it has 44k miles on it, and I am planning on a transmission service (fluid/filter).
anything else?

TIA.

Jim (transmission clueless...)

 

How long has the vehicle sat? Sometimes, when sitting for VERY long periods of time, the converter will drain, and you won't get movement untill it fills back up.

 

hadn't been that long. maybe a couple of hours. drove it to work. sat for 2-3 hours, took it out to lunch. thats when I had the problem.
fluid looks good and is at the correct level. I'm guessing the line pressure was low temporarily for some reason. could a valve or some other gizmo be stuck/faulty?

 

Update:

Well it happened again, and I paid more attention this time!
I shifted into Drive, and the indicator showed the 'D' was highlighted. It would not move.
I barely touched the shifter, and it engaged the tranny and started moving.
I barely touched the shifter again, and it went into neutral. the shift indicator still showed 'D'
highlighted.

Could this just be a linkage issue?
Any help is appreciated. My wife drives this, and I don't want her worrying about it.
Thanks!
Jim

 

There is a black clip that locks the adjustment of the shift cable down on the trans right next to the shift lever on the trans. It has a cover that slides on to cover the clip sometimes the cover will fall off then allow the clip to jump open which is the procedure you would do if you were to adjust it. But usually this is accompanied by a lot of slack in the shift lever but it is something to check.