Front suspension "rattle"

[ewbldavis]

Stupid question for those used to torsion bar suspensions...

 

I bought used HD with 30k miles on it. Drives great. I've noticed a "rattle" over certain road conditions. Sounds/feels like front end is loose. 

 

I've never had a 2500 before, and because truck drives very well, I'm assuming it's normal from road conditions. Any input?

 

I'll be due for oil change soon, so may have it looked at as I do still have factory warranty. I'd just like to know if I'm overthinking it. Thanks!

[redwngr]

Bars turned up?

 

UCA's hitting rests when wheel drops as it goes over a hole or when it rebounds after suspension was compressed? 

 

Wouldn't usually think that bushings etc would be worn at 30K.

 

4wd?

 

Bad shock absorber?

 

Mine have all been quiet -  and do lots of rough road and farm use.

[fjtort2]

Mine does it too... 45k miles bars turned up... Haven't found the culprit yet.. Been doing it for 10k miles 

[newdude]

Can you feel it in the driver's area in the floor? 

[bcnqrgd]

I had a similar problem on my 2002 Chevrolet 2500HD, it turned out to be a shifted bushing on the bottom end of one of the front shock absorbers.

[ewbldavis]

You can feel it a little. While looking underneath today, I wondered if the torsion bars "Rattle" under certain, rough road suspension articulation.

 

Yes, 4WD. I'll have to look at shock mounts a little closer, too. Thanks!

[gearheadesw]

Heat shield on the exhaust?

[ewbldavis]

** UPDATE **

 

Took truck in for oil change and explained rattle. Middle steering shaft link was replaced under warranty.

 

We all hate the "stealership", but for those in NE Ohio - Marhofer GMC has been awesome for many years.

[4wdriver]

4 hours ago, ewbldavis said:

** UPDATE **

 

Took truck in for oil change and explained rattle. Middle steering shaft link was replaced under warranty.

 

We all hate the "stealership", but for those in NE Ohio - Marhofer GMC has been awesome for many years.

Was this related directly to the suspension part of the steering or the steering wheel? I get a clunky noise as well. 

[ewbldavis]

Part is "upper intermediate steering shaft" - PN 23381952.

 

I mainly felt it on floor board, but I did sort of notice it in steering wheel. Seemed better after pickup, but I haven't hit the one ramp where it was very noticable yet. 

 

If you're under warranty, by all means ask them to check it out! 

[bullitt_bee]

I know this is an old post but i'm having what I think is the same issue. The dealership replaced the front shocks and rear leaf springs but the problem is still there. Video tries to capture the sound of rattle but is more more defined and "loud" in person. Thoughts?

 

 

 

 

[Wes H]

I had a similar "rattle" in the front end of my 2017 HD, it was also wearing the front tires. Took it to dealer for a look and they replaced the pittman arm and had to bleed the power steering system and re-align.

 

I also had an '09 Chevy HD that had a rattle in the front, it was replaced once while under warranty and went out again sometime after it expired. I can't remember what that issue was, it wasn't serious and it was pretty common.

[SierraHD17]

The older HDs have the brake pads rattle in the caliper brackets... it drives a person nuts.  The 17 uses the same setup as far as the brakes go so I am sure it will do it too in time.

[rocnrol]

Mine does it too... 45k miles bars turned up... Haven't found the culprit yet.. Been doing it for 10k miles 

If you haven't installed shock spacers yet, that will be your culprit. I had the same issue on my truck with turned up bars, put in spacers.... Noise gone

Sent from my BBD100-2 using Tapatalk

[Big Whiskey]

On 2/2/2019 at 1:25 AM, rocnrol said:

If you haven't installed shock spacers yet, that will be your culprit. I had the same issue on my truck with turned up bars, put in spacers.... Noise gone
 

Same for me. I think the "rattle" I was hearing was the shocks bottoming out.