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Getrag F23 - hard to shift into reverse

Old 07-09-2019, 07:09 AM
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Default Getrag F23 - hard to shift into reverse

Hello Everyone,

The manual gearbox is in an '05 Cavalier, ~150k km.
It is increasingly hart to shift into reverse, especially now, after a non-use for about a month.
I did oil the end of the shifter cables at the gearbox, as well as adjusted them as per the service manual.
I could not see any obvious oil leak from the gearbox, though the car is old enough and the underside of the drive-train is not spotless, like when it was new.
The shifting quality has been slowly deteriorating for a number of years...

When shifting, the spring in the gearbox does not take the shifter from the 1 - 2 plane to the 3 - 4 plane, one needs to move the shifter way over towards the 5th to engage the 3rd gear.
Engaging the 5th gear is sort of OK.
And now it is really hard to engage reverse.

Somehow I have the feeling that this is not the problem with the shifter cables, but internal to the gearbox.
Reading up on the F23 (briefly though) I could not find anything relating to this.

Any idea what is happening and what would be the best course of action?

Thanks, Peter
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Old 07-09-2019, 11:08 AM
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Originally Posted by orbanp View Post
It is increasingly hart to shift into reverse
Like you attempt to shift into Reverse and . . .

A. . . . it grinds?
B. . . . the lever enters the gate and travels to the normal end of travel and Reverse is not engaged?
C. . . . the lever enters the gate and travels to the normal end of travel and Reverse is barely engaged?
D. . . . selects easily but letting out the clutch doesn't make it move?
E. . . . selects easily but letting out the clutch barely makes it move?
F. . . . does something not described in this multiple choice?
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Old 07-10-2019, 06:40 AM
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Hi GM nut,

Thanks for the help!

I had another look at the car, it is my wife'* daily driver.

Clutch is fine, no grinding of gears.
It looks that it is hard to push the shifter enough to the right so that the gear would go into reverse. (It looks that it is fine for the 5th gear!)
It also looks that the shifting difficulty is temperature sensitive, I could shift into reverse OK when the car is cold, OK when it is warm, my wife tells me that it is hard to engage reverse when the car is cold though it stood in the sunshine all day (it is hot these days here).
I will keep an eye on this.

Still, this tells me that the shifter cable could stand a bit of adjustment again, it does not seem to move the selector in the gearbox enough to the right when engaging reverse.
The spring moving the selectors to the 3 - 4 plane does not seem to be there any more, it is probably broken.
If I am correct, that spring is inside the gearbox.
Is there a detailed diagram of the insides of the gearbox? I would have to double check it in the service manual!

Thanks, Peter
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Old 07-10-2019, 12:57 PM
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I think you're on the right track with the cable adjustment.

I believe the service manual has a lot of detail of the transaxle, but if not enough then there is probably a good reference available online.
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