Jump to content

2020 Denali power running board fix

Recommended Posts

I was having problems with the power running board on the drivers side of my 2020 Denali.

It would start out and then go back in after about an inch. I did some spray lube on the arm attachment points and could get it to work after assisting manually. But after a couple of days it did the same thing.

Googled and found the attached, which has the repairs for this problem and others that are common to the power running boards.

I did the arm removal, cleanup and lube recommendation, which required no parts and took a little over an hour.

This running board works perfect and just as smoothly and fast as the passenger side.

Thanks to the crew that posted this great help source.


Link to comment
Share on other sites

Tri Flow lubricant worked the best for me on my old '11 Tahoe factory power boards. I just would spray the pins/bushings every few weeks or when they seemed to slow down. 

Link to comment
Share on other sites

The penetrating oil spray was a temporary for me. Even when I’d work them each time, they were still slow.

When I took the arms off, I could see that seals kept much lubrication from reaching the pins. The build up was a weird film-but once fine paper cleaned up and lubed, everything worked like new.

Link to comment
Share on other sites

When taking the running boards apart….you should install Zerk fitting in the articulating arms so you can grease the pivot points every oil change….

Link to comment
Share on other sites

Join the conversation

You can post now and register later. If you have an account, sign in now to post with your account.

Reply to this topic...

×   Pasted as rich text.   Paste as plain text instead

  Only 75 emoji are allowed.

×   Your link has been automatically embedded.   Display as a link instead

×   Your previous content has been restored.   Clear editor

×   You cannot paste images directly. Upload or insert images from URL.

  • Create New...

Important Information

By using this site, you agree to our Terms of Use.