Rear end clunking noise

seansharley · February 16, 2015

I'll agree there are a few issues running around out there, but that doesn't mean you gotta go dropping the F bomb

LOL

Edited February 16, 2015 by seansharley

petrolhead_k · February 16, 2015

I've had an annoying constant clunk every time i come to a stop from reverse or forward. I've taken it to the deal many times. the truck has 3k miles on it 2015 single cab.

In my case, it was the fuel in the tank actually sloshing around. but sometimes the clunk is so hard i feel it into the cabin.

the fuel tank is un-baffled (cheaper production). so the fuel plays around and gives you a knock.

they have installed a 3m insulator around the tank. and the noise did reduced by 50% but still is there.

if its not your yoke or leafs, then it most probably is the fuel tank. ive made a post on it.

patriot · February 16, 2015

My rear end clunks when I eat Mexican food.

02suburbanZ71 · February 16, 2015

My rear end clunks when I eat Mexican food.
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Oh man that looks so good

patriot · February 16, 2015

Yeeah. I started off making a funny...now I WANT some!

seansharley · February 16, 2015

Lol

2014silveradohighcountry · September 22, 2015

I have a 2014 Silverado high country and have a clunking noise from the rear. (Have an appointment Thursday). Was there a service bulletin on this? Very pronounced in reverse and when going forward at slow speeds. In addition have had a clunk several time at around 45-55mph.

I previously owned a Nissan Titan for 3 years and had zero problems with it. My Silverado has 12000 miles and has had many issues.

Reading the other comments seems like an ongoing problem. I think I bought a $55000 pile of junk!

Donvan514 · November 12, 2015

So, there is no solution to this?

EJones · November 18, 2015

Same issue here. Just purchased a '15 Silverado 4x4 5.3 crew cab. With around 400 miles I started to hear a noise over the radio. Has two distinct sounds. When accelerating, mostly at speeds 30-50mph or going up hills where drivetrain is under load, I get a metal on metal sounding "CLICK". Once the accelerator is released the truck makes a distinct hollow "PLUNK" noise as best I can describe it. Almost like a bouncing ball type of sound w/ a hollow metal feel to it.

I've had it to the dealer and got the same bulletin #99-04-20-002I. Basically states slop in the transmission and driveline and is completely normal. Nothing about this seems or sounds normal. Just traded in an '11 Silverado 5.3 crew cab that had to have the pistons and rings replaced due to an oil consumption issue with only 50K miles. Now I am regretting the decision already of purchasing another GM product. Going to be a long 6 years if this truly is normal operation.

echofive0706 · November 19, 2015

I bought my 2015 GMC Sierra in August with less than 10 miles on it. The clunk noise started as just a small occasional noise, but it just keeps getting louder and more forceful. Now I have 4700 miles on it and the noise is so loud that passengers can feel it slamming into gear especially in stop and go traffic and it happens multiple times during my 15 mile drive to and from work everyday. I took it to Carl Black GMC in Kennesaw, GA yesterday and went for a drive with the mechanic and he said he definitely felt and heard the clunk and that he would check it out. While at the dealership I noticed on the wall a list of other vehicles in for maintenance that day and saw a 2014 Silverado on the list with "transmission downshifting hard" as the reason for the visit. I took a picture of the board in case it helps my case later. Today the tech called and asked me to come in and take it for another test drive because they couldn't reproduce the issue. Now in front of the service manager the same mechanic is saying that he never really heard anything wrong when we went on the test drive together the day before. Then the service manager gave me a GM bulletin stating that the problem I am describing is just "normal driveline clunk" and that it is acceptable. I asked them what amount of "driveline clunk" is normal and at what point does it become abnormal? My truck hasn't even had its first oil change yet and I hate driving it because it sounds like it is going to break apart when it downshifts. I am worried that it will fail at the worst possible time and leave my family stranded on the side of the highway or worse cause us to get into an accident. All I want is for the truck I worked hard for to work right, and to be told that I have to just accept this as my new normal is completely unacceptable. Getting the run around after giving GM my business is a huge slap in the face and having the service department tell me that I just have to get used to it and that I am imagining things isn't going to work for me. I am going to keep playing their game for a little while longer, and if we do not reach an acceptable resolution soon I will be taking legal action to get the problem resolved.

KSTMSTR · November 24, 2015

This is my first post here, and what a GREAT resource to find! In the end of August 2015, I bought a 2014 Silverado High Country as a 50th Birthday present to myself. the second day I drove it, I had all the windows down, and was coasting at around 20mph, and heard a very noticable metal-on-metal clunk sound when I accelerated again. I did more testing over the next several days, and took it to one of my good friends auto shop. He drove it with me, and easily recreated the clunk sound. He told me to contact the dealer. I made an appointment, only to have them tell me it's normal and provide me with the same serivce bulletin mentioned in this thread. This is my first ever GM purchase, and because of this clunk issue, as well as a drivers seat that moves around, and a salesman that completely lied about the vehicle history, I'm VERY dissapointed with my purchase..........

bigsam94 · November 25, 2015

i have a clunking sound coming from the rear end but only when i run over speed bumps/holes in the road. I'm guessing this is a completely different issue; bad rears maybe?

Ron.s · November 25, 2015

One thing I didn't see here is an axle wrap condition and/or bad rear leaf springs. The U bolts that fasten the rear springs should be torqued to 78 Lbs and apparently many aren't. If loose the axle can move. Some have also added clamps to the rear leafs. There are some threads covering this in detail. Also a GM bulletin on cleaning rear leafs with a pressure washer and lubing the Delrin pad. With all the unhappy customers one would think that GM would address all the causes and fixes in one bulletin. The gear lash bulletin (noted earlier) has been around for years. It's designed to keep dealers from doing diagnostics and discourage owners...after all it's normal, ha ha! Just my opinion.

06-1500HD · November 25, 2015

I just had my '14 in for the second time. When I back into a parking spot or make a turn at very slow speeds I get a loud clunking noise. They replaced the axle shafts, seals and clips. Seems to have resolved most of the noise but I'll test it out better today.

pm26 · November 25, 2015

So, there is no solution to this?

Yes, there is a long term solution. Quit buying their vehicles until they prove that they have a quality built product. As long as people keep buying their overpriced junk, they have no incentive whatsoever to eliminate the known problems.

Edited November 25, 2015 by pm26