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Intermediate Steering Shaft/Upper Steering Coupler Question

Posted: Thu Jan 10, 2019 11:32 am
by NickTF
Look at the picture below from the steering shaft of my 2015 PW. It would appear that if I remove the rubber boot clip and push the boot upward I will find some kind of telescoping joint correct? Otherwise, why have the boot there and splines. This shaft is quite noisy when I turn wheel back and forth short turns with motor off and I suspect the noise is coming from the location where the telescoping area is of this shaft. I believe this is the source of a clunking and popping i've been chassing. My plan is to apply liberal amounts of grease to the splines of this shaft and work the telescoping in and out repeatedly. I searched and found accounts in other forums where folks had done similar to eliminate the same sound I been chasing for a while.

I've already installed the EMF bushings in the pin area where the coupling joins the steering column. Before I installed them the noise was present and it has not changed after installing the bushings. For what its worth the pins were contacting the sides and quite sloppy before install of the bushings but again, did not appear to be the source of my clunking/popping.

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Re: Intermediate Steering Shaft/Upper Steering Coupler Question

Posted: Thu Jan 10, 2019 2:42 pm
by Colibri
Yes, take that apart and grease it. I had to do that on mine as well. Chasing down a little clunk in the Steering.

Re: Intermediate Steering Shaft/Upper Steering Coupler Question

Posted: Thu Jan 10, 2019 4:24 pm
by Reloaderguy
Tell your wife your wife you need hydro and a truss then quietly fix the problem with $10 worth of grease after.

Re: Intermediate Steering Shaft/Upper Steering Coupler Question

Posted: Thu Jan 10, 2019 4:32 pm
by NickTF
Reloaderguy wrote:
Thu Jan 10, 2019 4:24 pm
Tell your wife your wife you need hydro and a truss then quietly fix the problem with $10 worth of grease after.
:excited: :excited: :excited:

Re: Intermediate Steering Shaft/Upper Steering Coupler Question

Posted: Thu Jan 10, 2019 7:52 pm
by RustyPW
Reloaderguy wrote:
Thu Jan 10, 2019 4:24 pm
Tell your wife your wife you need hydro and a truss then quietly fix the problem with $10 worth of grease after.
:rofl:

Re: Intermediate Steering Shaft/Upper Steering Coupler Question

Posted: Thu Jan 10, 2019 8:29 pm
by NickTF
The shaft has a wiper seal that is super tight to splines and makes getting any real amount of grease in all but impossible. That said I applied, extended/compressed shaft, wiped grease which collected on seal back on splines, repeated this process about 50 times. Doesn’t appear to have fixed anything the noise is still there. Shaft u joint seemed tight and I noticed nothing obviously wrong with the shaft. Maybe the shaft is bad but not in an obvious way who knows.

Re: Intermediate Steering Shaft/Upper Steering Coupler Question

Posted: Thu Jan 10, 2019 10:43 pm
by Colibri
You can drill and tap for a zerk if you’re feeling ambitious

Re: Intermediate Steering Shaft/Upper Steering Coupler Question

Posted: Fri Jan 11, 2019 12:10 am
by Retired BLM Rig
If you're feeling less ambitious you can try this. It's not cheap but it's one of the best aerosol lubricants I've ever used. Penetrates with a thin solvent propellant that evaporates quickly and leaves behind a high pressure lubricant that won't run off and lasts a longtime.


819156939_tp.jpg
819156939_tp.jpg (8.65 KiB) Viewed 170 times

Re: Intermediate Steering Shaft/Upper Steering Coupler Question

Posted: Fri Jan 11, 2019 9:05 am
by NickTF
Thanks, I may give that a shot!

Re: Intermediate Steering Shaft/Upper Steering Coupler Question

Posted: Fri Jan 11, 2019 2:55 pm
by Reloaderguy
Retired BLM Rig wrote:
Fri Jan 11, 2019 12:10 am
If you're feeling less ambitious you can try this. It's not cheap but it's one of the best aerosol lubricants I've ever used. Penetrates with a thin solvent propellant that evaporates quickly and leaves behind a high pressure lubricant that won't run off and lasts a longtime.



819156939_tp.jpg
Those guys must be huge Wutang fans.

Re: Intermediate Steering Shaft/Upper Steering Coupler Question

Posted: Mon Jan 21, 2019 9:30 am
by NickTF
Wutang was out on tour so I ordered a new upper intermediate shaft. My GM buddy who's dealt with all the bad GM intermediate shafts by either replacing or filling them with grease drove the truck and felt pretty confident it was the upper shaft. Time will tell. If this fixes the issue but the problem comes back in another 50k or so i'll probably go the route of tapping in a zerk and filling the cavity behind the telescoping part with grease before replacing again. I'll report back when I swap the new upper shaft in.