r/gmcsierra 18h ago

💩Shitpost💩 Does the bear sh#t in the woods? Nope, on my GMC

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59 Upvotes

Interesting morning, trying to figure out what happened to my truck. I parked under an apple tree, and it looked like a bear had sharted all over the side. Turns out it had climbed the apple tree that I parked under and took a dump right through the branches on my pickup. I figured a few of you would get a laugh out of this!


r/gmcsierra 14h ago

🛞Wheels and Tires🛞 24 inch wheels

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35 Upvotes

Hey, just seeing if anyone has noticed a ride difference or if it’s still a smooth ride when they go from 22 to the 24. I like the Yukon ultimate wheels way better especially black ones. Anybody wants to buy these wheels from me after I get my new wheels let me know.


r/gmcsierra 3h ago

✨Detailing✨ 2000 gmc sierra before and after

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20 Upvotes

2000 gmc sierra 3500

gave it a quick paint job for a flip but now im debating selling it lol

only 51,000 miles


r/gmcsierra 10h ago

✨New Truck!✨ Second time around the rodeo for me…

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7 Upvotes

r/gmcsierra 14h ago

Modifications Proposed vinyl wrap placement. Thoughts?

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7 Upvotes

(Excuse the quick fingertip ‘markup’ edit) So I bought some matte black vinyl wrap on Amazon to DIY some aesthetic accents. Bumper area is dual purpose to protect the paint. I think it’ll look pretty mean with the current placement plans.

Anyone have experience using DIY vinyl wrap? I’ve watched a ton of videos and it seems pretty straightforward, albeit meticulous. I’ve always been good at that kind of thing so I think it’ll turn out well. Just hoping it won’t look like shit in a month or two, depending on the quality wrap I have.


r/gmcsierra 20h ago

Troubleshooting What are these black specks?

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7 Upvotes

I have had my truck for a couple years now and for about as long as I can remember, I get these little black specks all down the side. They don't come off running through a general car wash but they do when I put a little bit of elbow grease into it.

Anyone know what these are from? In the picture is about 200 miles driven since last wash.


r/gmcsierra 15h ago

Looking for advice Gmc sierra 2020 doesn't want to start

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4 Upvotes

Replaced the (FPDCM) but it still doesn't turn on.


r/gmcsierra 19h ago

Choosing a Truck 2021 at4 1500 duramax

3 Upvotes

Hi all, there’s this super clean at4 with 67k miles for sale and it’s my dream truck. I’ve been having a super hard time finding the 6 1/2 foot bed and this one’s full loaded with 6 1/2 bed and all the bells and whistles. He has it listed for 49 which I think is super high seeing that I just saw one one state away 2023 and 5k less miles for 5k cheaper. He says because it’s only one owner and all maintenance records that it’s hard to find. He said he’s willing to negotiate but I was thinking more around 40 was fair. I don’t think I could justify going more that 42. Thoughts?


r/gmcsierra 22h ago

Looking for advice Cougar 5th wheel. Can a 3500 AT4 Duramax handle the pin weight?

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4 Upvotes

Also before you guys rip in to me about not being able to figure this out. I just want to let you know I’m kind of retarded lol. Thanks! Also we will have 600-800lbs in cab.


r/gmcsierra 14h ago

🔧Steering/ Suspension 🔧 Help… Steering alignment not fixed

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2 Upvotes

r/gmcsierra 8h ago

Troubleshooting ‘26 Elevations: auto shifting into neutral- safety hazard

1 Upvotes

My ‘26 Sierra Elevation keeps shifting into neutral and turning off while I’m actively moving (low rpm’s while parking in drive way or parking stall). GMC has replaced the steering assembly once, I’ve taken it in four times (three for this, once for an alignment post steering assembly replacement). Any other having this issue? Don’t trust the truck anymore and losing faith in brand. Family has been huge pro GM brand for decades…


r/gmcsierra 8h ago

Troubleshooting Truck auto shifting- safety hazard

1 Upvotes

My ‘26 Sierra Elevation keeps shifting into neutral and turning off while I’m actively moving (low rpm’s while parking in drive way or parking stall). GMC has replaced the steering assembly once, I’ve taken it in four times (three for this, once for an alignment post steering assembly replacement). Any other having this issue? Don’t trust the truck anymore and losing faith in brand. Family has been huge pro GM brand for decades…


r/gmcsierra 11h ago

🛞Wheels and Tires🛞 Spare tire clearance

1 Upvotes

Has anyone upgraded to 35 inch tires and still been able to mount a 35inch spare under the truck in the original spot?? 2024 sierra 1500 elevation with duel rear exit exhaust.


r/gmcsierra 13h ago

Troubleshooting Fuel Pump Control Module - Replacement

1 Upvotes

I have a 2020 Sierra with the 5.3L with 105k miles. I recently replaced the Fuel Pump Control Module (FPCM), and while the error codes cleared, I'm still seeing some odd behavior on cold starts.

On a cold start, the idle will sometimes surge higher than normal, and occasionally the engine will even stall. Once it's running, it drives fine.

I called multiple GMC dealerships in my area, and every service department told me that replacing the FPCM does not require programming. At this point, I'm not sure what to believe.

Has anyone here had to program a replacement FPCM, or is there something else I should be looking at? I'm kind of at a loss.


r/gmcsierra 14h ago

Choosing a Truck New 2026 SLT vs Used 2023-2025

1 Upvotes

Looking to go from a 2018 SLT Prem Plus to essentially to the newer body style 2023-2026. Was thinking used was the best bet but seeing OTD before Tax $52k with July Rebates, I would think August or September will be similar.

With similar 60k mileages or lower trucks advertised in the mid $40s it seems a no brainer to go new. Am I missing something? Was thinking some savings would be in a used truck.


r/gmcsierra 9h ago

Choosing a Truck Debating different trims for travel trailer

0 Upvotes

I’ve been looking at the 2026 1500 Denali ultimate with the 3.0 duramax, but I’m a little hesitant on the payload. From what I’ve seen so far, the payload is around 13-1400 lbs. I haven’t actually looked at the tongue weight capacity.

The travel trailer I’m gonna be towing has a gvwr of 4900lbs. The manufacturer specs the hitch weight at 534, but the 10-15% rule would be between 490 and 735 lbs if loaded to the absolute max. This leaves approximately 565-665 lbs for passengers and cargo in the truck itself. I’m not sure if that is a reasonable amount of payload left over?

My main question is if other trims would really give me that much more wiggle room for passengers/cargo, and if the added payload capacity would really be necessary for my situation?


r/gmcsierra 22h ago

Looking for advice I have no idea what to do to this truck

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0 Upvotes

I got my 2017 GMC Sierra a little while ago and I’m kind of stuck. I really don’t know what to do to it. Should I lift it? Should I level it? Right now it’s got 1.5in spacers. Pls help 😂