Awd not engaging

[jasonb100272]

05 yukon xl denali. 6.0. 170k iowa truck. I got stuck on my own property 6inch snow slight hill when trying to go the abs was going nuts. Did not get hung up . Pulled it out and lost brakes 0 fluid. Replaced rear brake lines . Have brakes. But awd is not engaging. Making that abs sound. 2 times trying to accelerate on ice it feel on its face like no fuel i backed of the pedal and it came back. I had a slight grind on drivers front turning right. So I Replaced both front hubs with abs sensors. Still no awd . Any thoughts?

 

[HD_LS]

How does it behave if you turn stabilitrac off with the dash button? This should turn off the engine power cut back part of the traction control, and prevent it from abruptly cutting power.

 

[wildcatgoal]

Are you potentially slipping into 4LO?

 

[wjburken]

Does your 2005 have full time All Wheel Drive or does it have a 4WD selector switch for 2HI, 4HI, Auto 4WD and 4L? I thought the Denali’s only came with AWD or full time All Wheel Drive, but could be mistaken.

 

[ivin74]

Does your 2005 have full time All Wheel Drive or does it have a 4WD selector switch for 2HI, 4HI, Auto 4WD and 4L? I thought the Denali’s only came with AWD or full time All Wheel Drive, but could be mistaken.

X2

@jasonb100272
If you have a gear selector would you please post a picture of it. TIA

 

[Doubeleive]

if you are having traction problems pull the abs fuse, after the weather clears up put the fuse back, the abs light will be on while the fuse is out, it will go back to normal when you replace the fuse.

 

[jasonb100272]

X2

@jasonb100272
If you have a gear selector would you please post a picture of it. TIA

No its straight awd. I wish it was selectable

 

[ivin74]

No its straight awd. I wish it was selectable

It should engage unless the front diff or the transfer case are bad.

 

[ks03]

If I tried to go on nothing but ice under all 4 wheels mine would cut power too. I thought it was normal operation to cut power when it thought they were all spinning (unless traction control/ stability button was pressed at least). Awd isn’t full time 4wd. Something I’m missing?

 

[Mudsport96]

Do you have visual confirmation that neither front wheel is trying to help pull on snow and ice?
Never been a fan of awd, because some people (not necessarily you) think it works like 4 wheel drive.. it doesn't.