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Trans Stiff Moving Across Gates; Internal Varnish or Detent?

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3 captured repliesDiscussion pagination complete · Source accounts, not a confirmed diagnosis

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YOUR RESEARCHTrans Stiff Moving Across Gates; Internal Varnish or Detent?

1 matching discussions were examined; no attributable action/outcome evidence was detected. No consensus or repair conclusion is claimed.

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1 matching discussions · 3 captured posts examined · 0 partial discussions

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3 eligible posts · 0 unverified posts · 1 discussions match the subject in their title or opening post.

Rennlist: 1 discussions

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1 acknowledgements have no verified action link; they do not establish a repair result.

Outcome without a verified action link
External linkage (crank arm at the trans) is lubed, no change.
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No unique explicit quoted action; no causal link assigned

Generation: 20261026T113718Z · outcome-qualification-6. Deterministic extraction; no AI model inference. How we use sources

POST 1 / ORIGINAL POSTEROriginal post

Hey guys, Im dealing with a stiff selector on my 1999 C2 trans (G96/00). With shifter cables disconnected, moving the selector arm across the gates (1-2 and 5-6) is stiff and it won't self-center to 3-4. Reverse has enough spring force to move out the reverse gate. Cables are off; stiffness is definitely at the trans. External linkage (crank arm at the trans) is lubed, no change. I fixed a "gummed up" 2nd gear detent recently, so I suspect internal varnish may the culprit here too, but perhaps springs or dentents? Has anyone freed up a "stiff" internal selector shaft or a stuck centering detent without a teardown? Any specific solvent or "flush" tricks? Thanks, P!

POST 2Original post

Hi Mike, There could be an issue with the selector lever and associated bits that move shifting between the four planes. I've serviced G96 transmissions that have a lot of gunk or corrosion on the bushings in the case that the lever turns on. This is not a diagnosis, but a possibility based on your observations. Servicing the lever requires removing the transmission from the car, and the gear housing from the transmission. Access to the lever is a little tricky at this point, but it can be done without further disassembly.

POST 3 / ORIGINAL POSTEROriginal post

Thanks Kevin! Appreciate the info. Might just have to wait until the next transmission pull if this is the case.

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