Tranny problem in reverse
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Senior User
Joined: Dec 2005
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Tranny problem in reverse
Occasionally when I put my 04 cc 6.0 with the Torqueshift in rev. it will hesitate and then slip while making a grinding noise. All at once it will kick in and start to back up. Anyone have any problems such as this? I have had a new tranny put in 1 year after it was new. I was one of the first one that had the problems and fought to get the new tranny, long process... Ever since then I have this problem from time to time but it is not something that is reproduced easily. It only does it once a week or so. More while plowing but most likely due to the fact that I am using reverse more than normal during those times. They recently found a code that it kicked out that said a fault was with the instrument cluster. The service manager is looking into if that could be related due to the truck not knowing it is in reverse fully and slipping because of that. Any ideas would be greatly appreciated.
Postmaster
Joined: Dec 2003
Posts: 4,196
Likes: 11
From: Arizona
Two things come to mind, drive line splines at the slip yoke are binding or the snap ring is failing in the transmission. Plowing can be hard on a transmission, especially with all the shifting from D t R.
How many miles are on the transmission and when was the last time it was serviced?
How many miles are on the transmission and when was the last time it was serviced?
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Senior User
Joined: Dec 2005
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It was replaced at 28000 on the truck and now has 60000 on it. Been to the dealer a bunch of times with probably nothing done to it. They can't reproduce the problem so they can't fix it is what the keep telling me.
Postmaster
Joined: Dec 2003
Posts: 4,196
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From: Arizona
bronk68,
Try lubing the drive shaft slip joint splines and see if this helps. Also at a minimum the transmission should be flushed evey 30K miles and the external bypass filter changed every 15K miles. It is definitely time to have your transmission flushed. Also have them drop the pan and see if there is any junk in the bottem of it.
Try lubing the drive shaft slip joint splines and see if this helps. Also at a minimum the transmission should be flushed evey 30K miles and the external bypass filter changed every 15K miles. It is definitely time to have your transmission flushed. Also have them drop the pan and see if there is any junk in the bottem of it.
More Turbo
Joined: Nov 2004
Posts: 713
Likes: 5
From: Minneapolis, MN
My 2005 F350 does this also. Pay attention the next time it does it, I'm betting that you're rolling when you put it in reverse. Mine will do this every time if I put it in reverse while rolling either forward or backwards. I'm told this is a common characteristic of the torqshift due to the high pressures used, and the quick time into reverse (no delay). Anytime I mistakenly hit reverse before fully stopped, I just stop completely, then hit the gas again and I'm good to go. While annoying, after a night of pushing snow, you get used to it and it kind of retrains you how to plow (a good thing as it's less likely the tranny will get abused due to shifting while moving, which is a bad habit anyway). I was used to my 2000 which I could hit reverse while coming up into the pile, and it had enough slop and delay that it would be in reverse by the time my momentum carried me back out of the pile. Overall, aside from the delayed kick down and this little annoyance, I'm fairly happy with my torqshift (45k miles on original), especially compared to the chevy tranny's I was replacing every year in plow trucks...
Brendan
Brendan
