Weird suspension fault

[Bryan Jones]

After about 40-45 minutes of mainly highway driving I get an Amber "suspension fault" light on the dash. Turn the truck off, turn it back on, light goes away. Another 40-45 minutes of mainly highway driving, it comes back on.

The weird part is, the truck will still raise and lower as it should, even at the usual speed. And while cruising at highway speeds it doesn't lower the truck, or say it's locked at a certain height. It only says "Suspension fault"

It only pops up after a certain amount of time driving. I drive 20 minutes to work, and 20 minutes back, it doesn't pop up on either drive. I noticed it driving from Ohio to Indiana recently, and doing some distance driving in Ohio.

Any help or advice would be greatly appreciated

 

[ryanjl]

Codes?

 

[Bryan Jones]

Good point, I'll try to get them

 

[ryanjl]

I had an intermittent one like that for a bit. Only came on when I had been driving for 20 minutes or so, and would go away when I'd clear it with my iiD tool. It seemed to subside a little after I rebuilt my center and rear valve blocks, but it would come back every once in a while.

I rebuilt my front valve block in August 2020, and I think it's only come back once since then. I replaced my front air struts this past Spring, and I haven't had the fault once since then.

This is all conjecture though without a code. But the intermittent faults, in my experience, seem like they are more caused by something down the line than they are the compressor.

 

[Bryan Jones]

This is all conjecture though without a code. But the intermittent faults, in my experience, seem like they are more caused by something down the line than they are the compressor.

The problem here is, I don't have enough time to drive around until the fault pops back up. My 20 minute drive to work won't make it pop up, so I'm gonna have to wait until this weekend and just drive it until the light appears, and try the get code

 

[jlach993]

Not trying to be a d.i.c.k here, but damn that truck needs a detail boss

 

[Bryan Jones]

Not trying to be a d.i.c.k here, but damn that truck needs a detail boss

It's a DD, and a family vehicle for us with the 3 kids 5 & under, but trust me, I know haha

 

[jlach993]

It's a DD, and a family vehicle for us with the 3 kids 5 & under, but trust me, I know haha

Hahaha i get it man i guess ill be in the same boat when i have my kids as well

 

[Bryan Jones]

Hahaha i get it man i guess ill be in the same boat when i have my kids as well

The best part is taking the car seats out and finding all the "goodies" left behind

 

[CRYA]

The best part is taking the car seats out and finding all the "goodies" left behind

And this is why my very first mod was the LR waterproof rear seat covers!