DoubleAughtGC

Noob here!! I'm a Chevy small block, Turbo 350 guy. So I
am not completey stupid--LOL



My 2000 GC all of a sudden would not go in reverse.
I could feel in go in reverse but no backey up. I changed the
filter and the fluid--no fix. I jacked up the rear and the
tires spin in reverse. Do I need to adjust the rear band??

It's my DD and I need it working. Thanks for your help!!

DoubleAughtGC

Bump--Transmission guys??

ol"blue

Welcome to CF. Nice Camaro.
I don't know very much about transmissions, and you've already done the fluid/filter change, so anything I add would only be a guess. Was there much debris in the pan when you changed the fluid? How did the fluid look/ what color? Did it smell burnt? That being said adjusting the bands might help, or it might be too late for that. Could be worn/defective bands, or a pressure issue. I wish I could help.

DoubleAughtGC

The fluid was red, not burned. Very little metal attached to the
magnet in the pan. No big chunks of metal. 110,000 miles? Shifts
fine in drive. ????

Blue, thanks for the compliment and the input.

ol"blue

Well if you want/need to adjust the bands, here's the procedure/specs: http://www.jeepforum.com/forum/f13/b...tment-42re-354

DoubleAughtGC

THanks Dan, I think I'll adjust the rear and see what happens.

ol"blue

Well let us know the results.

jnicewan

Does it have engine braking when downshifting into lower gears when slowing down, or maybe does the 3-4 upshift feel a little mushy or a slight flare. Probably a broken snap ring, but could be a rear band or servo problem too.

What I am thinking and its a pretty common problem on 42,44,46,47RE is the O/D direct clutch snap ring failure or broken. If so, you will probably find pieces of the snap ring in the pan when you drop it. When the snap ring breaks it will more than likely damaged the O/D piston but if it just happened and you have not driven it much it might be ok. This repair can be made without remove/rebuilding the trans but special tools are needed and there is a very heavy spring that needs to be compressed to perform repairs.

DoubleAughtGC

It seems to do fine in drive. All the gears run thru ok. When I droped the
pan the first time, there were no big pieces of any thing in there. Thanks!!

Would the tires still turn in rev. if it was a clutch or snap ring problem??

DoubleAughtGC

I adjusted the rear band, NO CHANGE--It's time
to take it somewhere.

ct67_72

do what was suggested before first. manually down shift and see if you have engine braking. Also put it in manual low gear and stall the engine and see if it slips.
For reverse to apply it take the forwads clutches and the rear band.
The rear band is also on in manual low. This is how you can check that.
The od direct snap ring could be the problem, but they typically lose O/D first, and you may have found a piece of it in the pan. Too bad your not a little closer. I build those things pretty cheap.

trailer2

If you have access to a press you can do the repair yourself. I just fixed the same thing in a 2000 GC. If you need help I live in Louisa.

DoubleAughtGC

Thanks for the reply!! I have read some of your other posts and thought the
same thing (wish I was closer) I did not find much in the pan.

Would the tires still turn in rev. if it was a clutch or snap ring problem?? It goes in reverse when the rear is jacked up.

Can the snap rig break and no pieces fall in the pan?

DoubleAughtGC

Did you do it with the trans in the jeep?

ct67_72

I don't remember ever losing reverse from a broken snap ring though. When that happens the OD direct pack moves forward so when the piston comes on to apply the clutches are just kind of hanging out there.
In reverse the forward clutches and rear band are on. So it shouldn't matter what the OD section is doing.
Can you feel it "apply" in reverse? Like it feels like it engages but then just won't move?