08 Yukon Denali Power assist runningboard problems

[MonoAnt]

hey guys, im having issues with my running boards. they are not working at all no motor noise nothing. I just bought the vehicle and they were not working when i bought it. I found that the control module had a broken pin so i bought a used one online same part # and still no luck. i check power at the harness to to mod. and im getting power. Do i have to get this mod. programmed? also i tried the unlock procedure no luck either. Thanks for the help.

 

[MonoAnt]

anybody?

 

[MonoAnt]

Bump

 

[Goodinblack]

Wait so you at getting power to the motor?

 

[MonoAnt]

Wait so you at getting power to the motor?

i am not getting power to the motors just to the module.

 

[JennaBear]

I was told by the dealership that this is a common issue, especially for those who experience snow in the winter.

This was actually the reason why I did not want power running boards on our second Denali.

 

[GM Customer Service]

Hello MonoAnt,

I understand that you are seeking information regarding an issue you are experiencing with the running boards on your Yukon Denali. As a customer service representative, I'm not able to provide much in the way of do-it-yourself information, so I'm glad to see forum members are beginning to step in with feedback. If you have any lingering concerns, please contact me via private message.

Jennifer T.
GM Customer Care

 

[TraumaTruck1]

I just bought an 07 Denali. My power running boards work most of the time, but sometimes they seem to get in a bind or something. They click and pop like the motor tries to run but don't move. Sometimes they don't make any noise at all.

I have tried to lubricate the hinges, but it's hard to do because they don't come apart. I am thinking about taking the running boards off and soaking the hinges in oil to see if that does anything.

If that doesn't work I will probably end up taking them off and putting on some Nerf bars or something. My wife really needs the step because she's short and she's frustrated with them.

 

[MonoAnt]

I just bought an 07 Denali. My power running boards work most of the time, but sometimes they seem to get in a bind or something. They click and pop like the motor tries to run but don't move. Sometimes they don't make any noise at all.

I have tried to lubricate the hinges, but it's hard to do because they don't come apart. I am thinking about taking the running boards off and soaking the hinges in oil to see if that does anything.

If that doesn't work I will probably end up taking them off and putting on some Nerf bars or something. My wife really needs the step because she's short and she's frustrated with them.

Amen. I think I got my issue figured out the pwr wire in the mod. Pigtail was junk although it was reading 12v . Ordered the six wire pigtail $77 for a connector what a F-ing joke

 

[Goodinblack]

Amen. I think I got my issue figured out the pwr wire in the mod. Pigtail was junk although it was reading 12v . Ordered the six wire pigtail $77 for a connector what a F-ing joke

Maybe rebuilt it?

 

[MonoAnt]

Maybe rebuilt it?

the inside was too corroded, wish i could.

 

[MonoAnt]

wired in the new pigtail all is good!

 

[mark harris]

Amen. I think I got my issue figured out the pwr wire in the mod. Pigtail was junk although it was reading 12v . Ordered the six wire pigtail $77 for a connector what a F-ing joke

I have a 08 Denali same problem,where is control module located? And what's it called

 

[MonoAnt]

I have a 08 Denali same problem,where is control module located? And what's it called

Drivers side frame rail above the step

Sent from my SM-G920P using Tapatalk

 

[FatDog]

On our last Denali we had the power running boards and they were temperamental at times.

Sounds like you got it fixed but some things to keep in mind down the road that helped me.

Keep the hinges clean and lubed, just don't use wd-40, use a quality lubricant.

I also had one side bind up one time and there was a rock stuck in the hinge. If you pull the housing off the motor, you can turn the armature and lower the step manually. Then once the rock was out, cleaned everything and presto, good to go.

Also, if you have winter season where you are at, turn the powered boards off once it gets below freezing and leave them off for the winter. I did that the last couple of winters and once it warmed back up and the streets were clean, the boards seemed to work better. I guess having all that road grime, salt and crap just messes with them.