Planet-9

Newbie - lower intermediate steering shaft splines

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7 captured repliesPartial discussion capture · Source accounts, not a confirmed diagnosis

THIS DISCUSSION / SOURCE-DERIVED OVERVIEW

Discussion summary

YOUR RESEARCHNewbie - lower intermediate steering shaft splines

Reported or suspected cause

slightly loose clamping bolt at the splines

Reported cause

No successful repair reported for this finding.

1
Identified cause: 0
Suspected cause: 0
Reported fixes

Read evidence and context

Explicit resolution reports before identified causes, performed actions and suggestions. Within each level, matching component labels precede direct query mentions and inherited thread context; successful versus unsuccessful discussion counts, owner confirmations and independent discussion support determine order. This is not a probability of success.

Discussions that report identifying a cause: 1

0 original-poster resolution reports. Counts can overlap; they are not unique people or a success rate.

0 discussions have direct query context; 0 report a fix in that context. Other evidence may inherit the discussion’s subject.

Reported cause
I had a knock in my 2010 steering that turned out to be a slightly loose clamping bolt at the splines to the steering rack input stub.
Original post Read captured discussion
Newbie - lower intermediate steering shaft splines

Frequently discussed work

Check clamp at the input

No successful repair reported for this finding.

0
Reported fixes: 0
Unsuccessful attempts: 1
Discussions

Read evidence and context

Discussions that contain suggestions: 1

0 original-poster resolution reports. Counts can overlap; they are not unique people or a success rate.

0 discussions have direct query context; 0 report a fix in that context. Other evidence may inherit the discussion’s subject.

Suggestion
I suggest you recheck that clamp, then also check the clamp at the input to the steering rack.
Original post Read captured discussion
Newbie - lower intermediate steering shaft splines

Read full discussion summary

Leading evidence: 'slightly loose clamping bolt at the splines' (1 discussions report identifying this cause; no attributable repair resolution). Across 1 matching discussions, the most frequently mentioned possible cause is 'slightly loose clamping bolt at the splines' (1 discussions; 1 report identifying it and 0 suggest it). The most frequently discussed action is 'Check clamp at the input' (1 discussions). For that action, 0 discussions report a resolution and 0 report an unsuccessful attempt. No action has an explicit, attributable resolution report under the current rules. These are forum reports and suggestions, not a confirmed diagnosis.

Source reports, not a diagnosis or a success probability. Counts refer to discussions and can overlap.

Read captured replies

1 matching discussions · 7 captured posts examined · 1 partial discussions

Compare 4 other evidence results

Check clamp screw torque

Performed · outcome unconfirmed

No successful repair reported for this finding.

0
Reported fixes: 0
Unsuccessful attempts: 1
Discussions

Read evidence and context

Discussions that performed work without a confirmed outcome: 1

0 original-poster resolution reports. Counts can overlap; they are not unique people or a success rate.

0 discussions have direct query context; 0 report a fix in that context. Other evidence may inherit the discussion’s subject.

Performed · outcome unconfirmed
Checked the clamp screw torque that connects to the rack and it was very loose, I torqued it to 21 ft-lb and 90%of knocking sound is gone!
Original post Read captured discussion
Newbie - lower intermediate steering shaft splines

Replace front brake pipes, new clutch, rear brakes etc

Performed · outcome unconfirmed

No successful repair reported for this finding.

0
Reported fixes: 0
Unsuccessful attempts: 1
Discussions

Read evidence and context

Discussions that performed work without a confirmed outcome: 1

0 original-poster resolution reports. Counts can overlap; they are not unique people or a success rate.

0 discussions have direct query context; 0 report a fix in that context. Other evidence may inherit the discussion’s subject.

Performed · outcome unconfirmed
Just for information, I’ve already put full new front suspension on, renewed all the front brake pipes, new clutch, rear brakes etc.
Original post Read captured discussion
Newbie - lower intermediate steering shaft splines

Check clamp at the input

Suggestion or failed attempt

No successful repair reported for this finding.

0
Reported fixes: 0
Unsuccessful attempts: 1
Discussions

Read evidence and context

Discussions that contain suggestions: 1

0 original-poster resolution reports. Counts can overlap; they are not unique people or a success rate.

0 discussions have direct query context; 0 report a fix in that context. Other evidence may inherit the discussion’s subject.

Suggestion
I suggest you recheck that clamp, then also check the clamp at the input to the steering rack.
Original post Read captured discussion
Newbie - lower intermediate steering shaft splines

Replace male part [mrked blue]

Suggestion or failed attempt

No successful repair reported for this finding.

0
Reported fixes: 0
Unsuccessful attempts: 1
Discussions

Read evidence and context

Discussions that contain suggestions: 1

0 original-poster resolution reports. Counts can overlap; they are not unique people or a success rate.

0 discussions have direct query context; 0 report a fix in that context. Other evidence may inherit the discussion’s subject.

Suggestion
Steve, did you manage to solve the issue?, I have noticed knocking sound from intermediate steering shaft too but noticed its coming from u-joint [RED ARROW], I got the part already but instead of replacing the whole unit trying to see if I can just replace the male part [MRKED BLUE].
Original post Read captured discussion
Newbie - lower intermediate steering shaft splines

Frequently discussed actions (7)

These are separate views of the same evidence. Frequency alone does not establish a fix, and these counts must not be added together.

Check clamp at the input

No successful repair reported for this finding.

0
Reported fixes: 0
Unsuccessful attempts: 1
Discussions

Read evidence and context

Discussions that contain suggestions: 1

0 original-poster resolution reports. Counts can overlap; they are not unique people or a success rate.

0 discussions have direct query context; 0 report a fix in that context. Other evidence may inherit the discussion’s subject.

Suggestion
I suggest you recheck that clamp, then also check the clamp at the input to the steering rack.
Original post Read captured discussion
Newbie - lower intermediate steering shaft splines

Check clamp screw torque

No successful repair reported for this finding.

0
Reported fixes: 0
Unsuccessful attempts: 1
Discussions

Read evidence and context

Discussions that performed work without a confirmed outcome: 1

0 original-poster resolution reports. Counts can overlap; they are not unique people or a success rate.

0 discussions have direct query context; 0 report a fix in that context. Other evidence may inherit the discussion’s subject.

Performed · outcome unconfirmed
Checked the clamp screw torque that connects to the rack and it was very loose, I torqued it to 21 ft-lb and 90%of knocking sound is gone!
Original post Read captured discussion
Newbie - lower intermediate steering shaft splines

Replace front brake pipes, new clutch, rear brakes etc

No successful repair reported for this finding.

0
Reported fixes: 0
Unsuccessful attempts: 1
Discussions

Read evidence and context

Discussions that performed work without a confirmed outcome: 1

0 original-poster resolution reports. Counts can overlap; they are not unique people or a success rate.

0 discussions have direct query context; 0 report a fix in that context. Other evidence may inherit the discussion’s subject.

Performed · outcome unconfirmed
Just for information, I’ve already put full new front suspension on, renewed all the front brake pipes, new clutch, rear brakes etc.
Original post Read captured discussion
Newbie - lower intermediate steering shaft splines

Replace male part [mrked blue]

No successful repair reported for this finding.

0
Reported fixes: 0
Unsuccessful attempts: 1
Discussions

Read evidence and context

Discussions that contain suggestions: 1

0 original-poster resolution reports. Counts can overlap; they are not unique people or a success rate.

0 discussions have direct query context; 0 report a fix in that context. Other evidence may inherit the discussion’s subject.

Suggestion
Steve, did you manage to solve the issue?, I have noticed knocking sound from intermediate steering shaft too but noticed its coming from u-joint [RED ARROW], I got the part already but instead of replacing the whole unit trying to see if I can just replace the male part [MRKED BLUE].
Original post Read captured discussion
Newbie - lower intermediate steering shaft splines

Replace u join / shaft inside

No successful repair reported for this finding.

0
Reported fixes: 0
Unsuccessful attempts: 1
Discussions

Read evidence and context

Discussions that contain suggestions: 1

0 original-poster resolution reports. Counts can overlap; they are not unique people or a success rate.

0 discussions have direct query context; 0 report a fix in that context. Other evidence may inherit the discussion’s subject.

Suggestion
Just checked, it was little bit loose, torqued it to 23nm (17ft-lb) but knocking is still there, Ill try to replace the u join / shaft inside.
Original post Read captured discussion
Newbie - lower intermediate steering shaft splines

Replace whole unit trying

No successful repair reported for this finding.

0
Reported fixes: 0
Unsuccessful attempts: 1
Discussions

Read evidence and context

Discussions that contain suggestions: 1

0 original-poster resolution reports. Counts can overlap; they are not unique people or a success rate.

0 discussions have direct query context; 0 report a fix in that context. Other evidence may inherit the discussion’s subject.

Suggestion
Steve, did you manage to solve the issue?, I have noticed knocking sound from intermediate steering shaft too but noticed its coming from u-joint [RED ARROW], I got the part already but instead of replacing the whole unit trying to see if I can just replace the male part [MRKED BLUE].
Original post Read captured discussion
Newbie - lower intermediate steering shaft splines

Tighten inside clamp

No successful repair reported for this finding.

0
Reported fixes: 0
Unsuccessful attempts: 1
Discussions

Read evidence and context

Discussions that contain suggestions: 1

0 original-poster resolution reports. Counts can overlap; they are not unique people or a success rate.

0 discussions have direct query context; 0 report a fix in that context. Other evidence may inherit the discussion’s subject.

Suggestion
I won’t swap the intermediate shaft and U join and will tighten the inside clamp to 20 ft-lb tomorrow.
Original post Read captured discussion
Newbie - lower intermediate steering shaft splines

Reported and suspected causes (1)

These are separate views of the same evidence. Frequency alone does not establish a fix, and these counts must not be added together.

slightly loose clamping bolt at the splines

No successful repair reported for this finding.

1
Identified cause: 0
Suspected cause: 0
Reported fixes

Read evidence and context

Discussions that report identifying a cause: 1

0 original-poster resolution reports. Counts can overlap; they are not unique people or a success rate.

0 discussions have direct query context; 0 report a fix in that context. Other evidence may inherit the discussion’s subject.

Reported cause
I had a knock in my 2010 steering that turned out to be a slightly loose clamping bolt at the splines to the steering rack input stub.
Original post Read captured discussion
Newbie - lower intermediate steering shaft splines

Coverage and how to read this overview

Counts describe captured discussions, not unique people or a diagnosis. Author identities are not reliably stored. Exact duplicate evidence is counted once across matching discussions; one discussion counts at most once per action/state. Multiple repairs reported together remain a combination. Suggestions and failed attempts do not establish a fix. Matches cover whole discussions and can include related faults, model variants and incomplete threads.

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

Planet-9: 1 discussions

0 evidence records excluded for query context · 0 excluded by outcome qualification · 0 adjusted by outcome qualification.

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

Outcome without a verified action link
Retorquing the bolt fixed it.
Original post Read captured discussion
No unique explicit quoted action; no causal link assigned

Generation: 20261026T205155Z · outcome-qualification-6. Deterministic extraction; no AI model inference. How we use sources

POST 1Original post

Hello All, New to this forum and looking for some help. Recent purchase of a 2010 Boxster S , and slowly working my way through some of the issues that I hope will get it as sorted as it can be. Just for information, I’ve already put full new front suspension on, renewed all the front brake pipes, new clutch, rear brakes etc. I managed to break a subframe lug while trying to remove one of the bottom arm bushes, removed it and took it down to a specialist welders who did a fine job of sorting out my error! Anyway, I have a knock that sounds like it’s from the steering wheel but actually it is coming from the sliding splines in the lower intermediate steering shaft. Does anyone know if it is the male part that wears with the white shim thingy, or the female? Thanks in advance, Steve

POST 2Original post

Steve, did you manage to solve the issue?, I have noticed knocking sound from intermediate steering shaft too but noticed its coming from u-joint [RED ARROW], I got the part already but instead of replacing the whole unit trying to see if I can just replace the male part [MRKED BLUE].

POST 3Original post

Are you sure it's the u-joint, or is it in that top splined section? Have you tried loosening and retorquing the bowl with the yellow paint? I had a knock in my 2010 steering that turned out to be a slightly loose clamping bolt at the splines to the steering rack input stub. Retorquing the bolt fixed it.

POST 4Original post

Just checked, it was little bit loose, torqued it to 23nm (17ft-lb) but knocking is still there, Ill try to replace the u join / shaft inside.

POST 5Original post

First go I torqued it to 17 ft-lb and there was still a bit of play. I went up to 20 ft-lb and that fixed it: was fine for me but don't blame me if you strip something, lol. I suggest you recheck that clamp, then also check the clamp at the input to the steering rack. If you take off the left front wheel you can get a straight shot at the bolt with a long extension, just rotate the wheel so it's pointed to the left. You shouldn't have to guess where the play is: watch/feel/listen to each link in the shaft as you have someone move the wheel back and forth for you and you should be able to find exactly where it's knocking.

POST 6Original post

Checked the clamp screw torque that connects to the rack and it was very loose, I torqued it to 21 ft-lb and 90%of knocking sound is gone! I won’t swap the intermediate shaft and U join and will tighten the inside clamp to 20 ft-lb tomorrow. Thanks for the suggestion that resolved it!

POST 7Original post

No prob. It seems to be at least somewhat common, there have been several other people on here who have had the same issue. Loosen the other bolt slightly, then retorque to your target value.

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