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Smell like burning clutch in new Sierra

Mr Vee
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Mr Vee Enthusiast

Mr Vee

Posted
Posted

Picked up my new Sierra today and once it warms up the smell reminds me of a burning clutch. I figured there would be some burn off of coatings and such but not sure this is what that would smell like. It had 25 miles on it and put about 70 on today and can still smell it. Normal or something to get checked out?

 

Thanks

 

GregG10 Enthusiast

GregG10

Posted
Posted

My AT4 had 8 miles on it when I purchased it and it smelled terrible. Wife was really put off because of the smell, told her it was the new car smell! I have a bit over 500 miles now and it has gone away. Figured it was a combination of oil coatings and new muffler catalytic converter etc.

ILSilverado Enthusiast

ILSilverado

Posted
Posted (edited)

I have it too and it seems to come and go. Smells like a hot iron. I have the diesel however I never had this smell in my 2019 5.3L  I have 1500 miles on mine and I still smell it periodically.

Edited by ILSilverado
redwngr Senior Enthusiast

redwngr

Posted
Posted
1 hour ago, ILSilverado said:

I have it too and it seems to come and go. Smells like a hot iron. I have the diesel however I never had this smell in my 2019 5.3L  I have 1500 miles on mine and I still smell it periodically.

Exhaust gets much hotter than normal when doing the regen of the DPF - might explain the periodically.

 

6.6' dmax it's common for smell when new -- and sometimes even visible smoke -- but typically both smoke and smell disappear over time.  

If it doesn't it may be due to an exhaust leak. Over the last 10 years there have been both bulletins and 'repair as needed updates' for leak concerns on both the LML (11 thru 16) and the L5P (17 and newer) .

 

It's Tim Senior Enthusiast

It's Tim

Posted
Posted
On 2/9/2020 at 12:41 AM, GregG10 said:

 Wife was really put off because of the smell, told her it was the new car smell! 

Always a good idea to drive with the windows slightly open and fan a least on medium speed as the cherished  "new car smell" is actually a toxic soup of chemical outgassing.

  • Like 1
BlaineBug Enthusiast

BlaineBug

Posted
Posted

I'll second the exhaust smell.  My wife just leased a brand new 2020 Nissan Rogue and it smelled like something was burning for weeks after it had been running.  The new car smell on the outside is definitely not as pleasant as it is on the inside.

  • 1 year later...
Nebraska New Member

Nebraska

Posted
Posted

I bought a 2020 AT4 WITH A 6.2 ENGINE. I bring the truck in to GMC for all oil changes. I was about 5120 miles. The car information stated I had 27 percent left of oil life. That night the warning light came on said I was low on oil. I was about 2 miles away from the GMC dealer so I drove up went in and the salesmen went grabbed me a quart of oil. The service was already closing so I went in the next morning. I had the oil changed and they said they would do a consumption test. 1000 miles go in and the oil level is ok. 2000 miles the oil level is ok. 3000 miles the oil level was ok but the oil look very dirty. 4000 miles I went in no oil on the dip stick again. I told them to change the oil at 4000 miles because its dirty and no good. They said they would call GMC and ask them what to do about the oil lose. 10 or so days go by no call so I go back to the service department. I just took a trip so I was already close to 1000 miles. They said they weren't going to do anything because they don't know what the problem is. They need more evidence bring it back after another 1000. I really pissed off today and was wondering if anyone has this problem. How they fixed it or what did the dealer tell you. Thanks for any help.

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