07 Yukon Denali rear swaying on highway

[JML07denali]

I have family in town so the truck is loaded with weight. (7 people) When I'm on the highway doing about 65 or 70 the rear sways side to side kind of like if you were on a boat. What could it possibly be. Shocks? Sway bar bushings? What could I do to diagnose the issue. I have no warning lights.Tires have about 70% tread and are balanced with no shakes. Has anyone experienced this before?


Sent from my iPhone using Tapatalk

 

[redeknightjr]

Shocks, if not sway bar end links and/or bushings or link bushings

Sent from my SM-N910P using Tapatalk

 

[JML07denali]

I got under and snapped a couple pics.


Sent from my iPhone using Tapatalk

 

[VICDBOSS]

Are your wheels torqued to spec?


Sent from my iPhone using Tapatalk

 

[JML07denali]

Are your wheels torqued to spec?


Sent from my iPhone using Tapatalk

Yes.


Sent from my iPhone using Tapatalk

 

[Goodinblack]

How many miles on the truck

 

[JML07denali]

115


Sent from my iPhone using Tapatalk

 

[VICDBOSS]

Have you checked the sway bar bushings?


Sent from my iPhone using Tapatalk

 

[JML07denali]

No, and how can I tell if they are good or bad?


Sent from my iPhone using Tapatalk

 

[NORCAL SS]

are you sure the autoride shocks are working correctly

 

[JML07denali]

I guess they are? How would I know if they are working right or not? Is there a way to test the air pump as well?

Sent from my iPhone using Tapatalk

 

[NORCAL SS]

put a load in back
get soap and water and spray bottom of bags
and when rear lifts up see if bubbles come out

 

[JML07denali]

How much of a load (lbs) will trigger the pump to come on?


Sent from my iPhone using Tapatalk

 

[denalianyone]

How much of a load (lbs) will trigger the pump to come on?


Sent from my iPhone using Tapatalk

The pump should come on for a short period when you start up your truck.


Sent from my iPhone using Tapatalk

 

[ccapehartusarmyINF.(ret)]

7 people what else did you have in the vehicle 50lb cement bags

 

[JML07denali]

7 people what else did you have in the vehicle 50lb cement bags

Haha..3 suit cases 2 of the 7 people were screaming kids.


Sent from my iPhone using Tapatalk

 

[JML07denali]

Well just looked at the compressor I unplugged the air line from the shock and nothing.....no air sound or hiss. I would guess the air pump and rear shocks need replacement? Crazy thing is I have zero warning lights, no engine lights. If the system was bad or leaking air wouldn't it give me a warning message of some sort? Unless the previous owner pulled the fuse. Can someone tell me which fuse controls the compressor please. (A pic would help)

Thanks


Sent from my iPhone using Tapatalk

 

[JML07denali]

Ok help me out which one is the air ride compressor fuse?

Sent from my iPhone using Tapatalk

 

[denalianyone]

In all actuality if the fuse was pulled a warning message about servicing the suspension would show up. The only way it wouldn't was if a resistor was connected inline to the pump.

#71 - STUD 1 for the compressor

Sent from my iPhone using Tapatalk

 

[JML07denali]

Thanks, I will check the fuse today.


Sent from my iPhone using Tapatalk