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Loose Suspension or Spring Pack Issue?

cNate

By cNate
in Troubleshooting, Warranty & Recalls

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cNate Enthusiast

cNate

Posted
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Over the past few days, my 2020 GMC Sierra AT4 HD (2500) Dmax has started giving me feedback when I corner or take turns. This is after 2200 miles of not having an issue. It sounds like something is loose in the back... possibly the spring pack. It’s like a popping sound that is more likened to when fluid rolls around in a tank... it’s definitely not my def or gas tank. There’s been no damage, off-roading, or anything like that. Taking it in tomorrow for the seat belt pretensioner recall and to have the techs assess this feeling/noise that just started.

 

Anyone else experience something similar?

 

 

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CRApex Enthusiast

CRApex

Posted
Posted

When I picked mine up, the bolt was missing from the clamp/shackle that holds the rear leaf together.  The dealer borrowed a bolt from a different truck as it wasn’t available to order without the entire spring assy. 

cNate Enthusiast

cNate

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I haven’t climbed under the truck yet to get a good look. I could see bolts were on when looking from a standing position down into the area. I’ll be climbing in there in the morning and checking everything before I go in. Want to make sure everything is torqued down.

 

 

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cNate Enthusiast

cNate

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Dealership only managed to get the recall done on the seatbelt pretensioner. Took them 3 hours just to do that. Have to take the truck back in next week to look at the suspension.


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SkidooSteve12 Enthusiast

SkidooSteve12

Posted
Posted

I haven't heard any new noises with 3300 miles, but the other day it did feel a little different, granted we have had some snowy and icy roads this week and I've been using the AutoTrac 4X4 on and off. I will definitely check my spring pack bolts though!

  • 2 months later...
cNate Enthusiast

cNate

Posted
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I went through everything under my truck and couldn’t find anything that appeared to be loose or an issue. I’ve now got about 5k miles on the truck. I never got it back into the dealership and the noise has since stopped for the last 1k miles or so. I’m wondering if the suspension needed some breaking in? Weird...

 

 

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jpgcrna Enthusiast

jpgcrna

Posted
Posted

I’m at almost 5k miles and I’ve been recently hearing some suspension creaking/popping. Mine sounds like it’s coming from the driver/front suspension. Mostly in reverse making a hard left. I was going to grease everything next chance I get and see if it goes away. I had a serious squeak all the time when I first bought the truck and pinned it down to dry door hinges/latches. I just wonder if they went a little light on the lube all around.

  • 3 weeks later...
cNate Enthusiast

cNate

Posted
  • Author
Posted
I’m at almost 5k miles and I’ve been recently hearing some suspension creaking/popping. Mine sounds like it’s coming from the driver/front suspension. Mostly in reverse making a hard left. I was going to grease everything next chance I get and see if it goes away. I had a serious squeak all the time when I first bought the truck and pinned it down to dry door hinges/latches. I just wonder if they went a little light on the lube all around.

Someone else on this forum took theirs to a dealer, had them do a ride along, and discovered the front Rancho shocks had an issue. They replaced the shocks and sent the bad ones to Rancho. I’m thinking I’ve got the same issue. Wish I had got it in when it was making the noise. I’d get yours in.


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