Tranny Problem(don't know whats wrong)

[Tahoe_96]

I was picking up speed to merge onto the interstate and all i heard was a grinding noise and the Tahoe died. So i cranked it back up and it wouldn't engage into any of the gears its stuck in neutral from what I can tell..Its a 1996 with 4L60E and has manual transfer case

 

[inthechateau]

The engine died on you when you heard the grinding noise? If you dropped it into low gear and hi RPM to mergerge you may have blown the 2-3 planetary or clutch pack. The 4L60 is a little weak in that area. Check oil and level, transfer case, will it shift if you select low 4wd? You may have torqued a motor mount and pulled the shifter linkage out of synch. Lots of variables, need more info.

 

[retorq]

More then likely the rear planetary, it's common.

 

[SunlitComet]

if in grinds any time it is in gear and not when not yet vehicle can still move freely regardless you may have snapped the output shaft. being as how you have a tcase installed the only way to tell for sure is to remove the tcase. any other details on failure?

 

[retorq]

A busted planetary will grind too, the planetary is a common failure, my first trans failure was due to that.

 

[Gzes]

Yep same problem with my first trans

 

[retorq]

Well what do you know, let's start a club.

 

[Tahoe_96]

the SES light came on the night before but never got a chance to get it checked and now cant drive it to get it checked...it was in 2wd when it happened and i tried putting in 4wd but nothing happened..it was in drive also when it happened... now when i try and shift it into gear i dnt feel it even try to engage

I just need to narrow it down to make sure its the transmission is the problem cause if it is i think im just going to leave it sitting until i can afford to buy a rebuilt one from MonsterTrans.

 

[Gzes]

When mine died if i left it off for a while then put it in gear it let me drive home then slipped and crapped out

 

[Donnie Yukonie]

It might also be a bad Transfer case I agree with sunlit (per his insight) If your transfer case is really bad you won't be able to move at all