2024 GMC Sierra 1500 Elevation 2.7L Turbomax Oil Leak at 2000 Miles

[Jason Ridge]

I have a new 2024 GMC Sierra 1500 Elevation with the Turbomax motor. Everything has been fine to-date, but yesterday noticed a few drops of oil underneath my truck. Taking a closer look, it appears that I have a fairly significant oil leak, but can't really tell where it's coming from. There are drops on different sides of the oil pan and lower transmission pan...and a general film of oil on a good portion of the rear engine and transmission areas (probably blown back while driving. I'm taking it in to be checked tomorrow, but wanted to see if other are having similar issues and had any specific results from having it repaired. And sorry if this is a duplicate topic from another forum, I did not find the same issue anywhere else.

 

In the photos attached...you'll see the areas where the oil is dripping, pooling, and general spread across the underside of the truck. Tough to tell what exactly is leaking, but I'm sure I'll hear more tomorrow. Hoping it's nothing significant and just a simple tightening a loose screw...

 

Thanks!

[newdude]

I'm gonna guess rear main seal.  I've seen a few reports around of this the 2.7  (and 3.0 Duramax).  Not every single one doing it of course, but there's a couple out there.    

 

If it is that, they will replace the entire rear cover/seal assembly.  Could have been misaligned during engine assembly or rolled the seal somewhere.  The cover itself is RTV sealant for the perimeter gasket so could have a bad spot of RTV.  

Edited April 10 by newdude

[Jason Ridge]

We'll see what they say tomorrow. I would assume replacing the rear cover assembly would mean removal of the  transmission. Hopefully I'm wrong there. Not sure I would be willing to stick with a new truck that has to already have a fairly significant repair made. Hopefully it's something much easier. 

[newdude]

.

Edited April 11 by newdude

[newdude]

15 hours ago, Jason Ridge said:

We'll see what they say tomorrow. I would assume replacing the rear cover assembly would mean removal of the  transmission. Hopefully I'm wrong there. Not sure I would be willing to stick with a new truck that has to already have a fairly significant repair made. Hopefully it's something much easier. 

 

 

5yr/100k warranty.  I'd keep driving it after its fixed.  

[silveradosid]

any update on the leak

[Jason Ridge]

Wish I had better news. After more than a week with my local dealership service, I as told on Friday that the truck was done (at least that's what I was told.) The main rear engine seal was "rolled" during manufacturing, an "assembly defect." There was also another seal leaking, but I don't recall which one that was. Most all of the drivetrain was removed as well as the back of the engine (bell housing, etc.) to get to the seals...then put back together. It's a very uncommon failure...and something almost never done at a dealership...so hopefully it was reassembled correctly. Everyone said it was quite an issue to repair and rebuild.

 

But there is now drama around the repair. As I said I was told Friday that the truck was done and I could pick it up anytime. My wife and I were traveling for the weekend, so I told my service rep I would pickup the truck on Monday morning. WELL...over the weekend I got an alert from the MyGMC app letting me know, through OnStar, that my truck was driven on Saturday. And not just driven from one space at the dealership to another...it was driven from the SF Bay Area to the base of the Sierra foothills more than 2 hours away...stopped at someone's home for about 5 minutes, then turned around and was driven back. A four hour, 210 mile trip with a few additional stops along the way.

 

I was shocked and contacted my service rep at GMC who proceeded to tell me that the "service manager drove the truck for an additional extended service check." And that is was only "driven around the dealership, in town." The rep had no idea that I had the alerts and all the trip details from OnStar (thank you OnStar). The rep said this is a normal part of the repair...but I guess he forgot that he said my truck was done on Friday...so there was NO reason whatsoever for them to drive my truck.

 

I then shared with him the fact that I had all the OnStar data and the truck was not driven locally, but instead was taken on a 210 mile journey to the Sierra foothills. I let him know that I even had the address and a picture of the home that was visited. His response? He said that "he's just a service rep and did not know the truck was taken or where it was driven." But don't forget, he already told me it was driven locally and who had taken the truck...so his memory became fuzzy the more I presented the facts. 

 

I was so shocked by this that I didn't even know how to respond to what was going on with my truck. After taking a beat to think this over, later that day I called my service rep again. This time he said "he had spoken with the service manager who took my truck and that they would comp one month's payment if we could consider this resolved." WHAT?! So you want to pay me off to keep this quiet and just move on. A bribe? We'll, that's not going to happen.

 

What a disappointing, disgusting display and breaking of customer trust. Who knows why my truck was actually taken? What was done with it? If I really wanted to let my imagination run wild...maybe it was used to drop off drugs or for some other illegal activity. Who knows? Because all I get from the service team are continued lies and attempts to say they don't know anything. And there's more...small things...like the fact that only enough gas was put into the truck to make it as un-noticable as possible. But they forget that with the app...I can compare fuel levels, etc. And I don't believe this is a first for this team. They seemed to have a clear initial story...too bad it was all lies and disproven with the facts present in the MyGMC app.

 

For the moment, I've told the dealership I will, under no circumstances, accept my truck back. I've filed a complaint with GM corporate asking for them to buy the truck back. I've reported this to the better business bureau. And...I've contacted the local TV media who report on these types of crazy incidents. We'll see what happens next. More to come Monday.

 

Keep in mind a few things that help explain my concerns:

• I take care of the things I buy. I have great respect for what I own and I take the highest level of care to keep them in perfect shape. My truck was spotless. I use it as you should use a truck, but I take care of it.
• I don't let ANYONE drive my truck (other than my wife.)
• My truck only had 2800 miles on it...and now has nearly 3100 miles. So this mess added nearly 10% to the mileage which will affect my lease, wear and tear, etc. Who knows.

I wish this was easier. I should have been. But you can't make this stuff up...still can't believe this happened. The repair was bad enough, but it was repaired and could have been dealt with on it's own. This new twist just adds a whole other layer to the issue that really provides for additional significant concerns. Insult to injury.

 

Anyway, it's a total mess. I'll provide an update later this week once this plays out a bit more.

[silveradosid]

i am on the other side of the coin, dealer told me they drove my truck for an hour to heat it up to find an oil leak. they put 2.1 kilometers on it in an hour. why do they have to lie ?????? do you know if the oil leak is fixed, my truck did the same leaking and it was the oil separator on the back of the engine

Edited April 22 by silveradosid

[shanemack06]

On 4/21/2024 at 10:03 PM, Jason Ridge said:

Wish I had better news. After more than a week with my local dealership service, I as told on Friday that the truck was done (at least that's what I was told.) The main rear engine seal was "rolled" during manufacturing, an "assembly defect." There was also another seal leaking, but I don't recall which one that was. Most all of the drivetrain was removed as well as the back of the engine (bell housing, etc.) to get to the seals...then put back together. It's a very uncommon failure...and something almost never done at a dealership...so hopefully it was reassembled correctly. Everyone said it was quite an issue to repair and rebuild.

 

But there is now drama around the repair. As I said I was told Friday that the truck was done and I could pick it up anytime. My wife and I were traveling for the weekend, so I told my service rep I would pickup the truck on Monday morning. WELL...over the weekend I got an alert from the MyGMC app letting me know, through OnStar, that my truck was driven on Saturday. And not just driven from one space at the dealership to another...it was driven from the SF Bay Area to the base of the Sierra foothills more than 2 hours away...stopped at someone's home for about 5 minutes, then turned around and was driven back. A four hour, 210 mile trip with a few additional stops along the way.

 

I was shocked and contacted my service rep at GMC who proceeded to tell me that the "service manager drove the truck for an additional extended service check." And that is was only "driven around the dealership, in town." The rep had no idea that I had the alerts and all the trip details from OnStar (thank you OnStar). The rep said this is a normal part of the repair...but I guess he forgot that he said my truck was done on Friday...so there was NO reason whatsoever for them to drive my truck.

 

I then shared with him the fact that I had all the OnStar data and the truck was not driven locally, but instead was taken on a 210 mile journey to the Sierra foothills. I let him know that I even had the address and a picture of the home that was visited. His response? He said that "he's just a service rep and did not know the truck was taken or where it was driven." But don't forget, he already told me it was driven locally and who had taken the truck...so his memory became fuzzy the more I presented the facts. 

 

I was so shocked by this that I didn't even know how to respond to what was going on with my truck. After taking a beat to think this over, later that day I called my service rep again. This time he said "he had spoken with the service manager who took my truck and that they would comp one month's payment if we could consider this resolved." WHAT?! So you want to pay me off to keep this quiet and just move on. A bribe? We'll, that's not going to happen.

 

What a disappointing, disgusting display and breaking of customer trust. Who knows why my truck was actually taken? What was done with it? If I really wanted to let my imagination run wild...maybe it was used to drop off drugs or for some other illegal activity. Who knows? Because all I get from the service team are continued lies and attempts to say they don't know anything. And there's more...small things...like the fact that only enough gas was put into the truck to make it as un-noticable as possible. But they forget that with the app...I can compare fuel levels, etc. And I don't believe this is a first for this team. They seemed to have a clear initial story...too bad it was all lies and disproven with the facts present in the MyGMC app.

 

For the moment, I've told the dealership I will, under no circumstances, accept my truck back. I've filed a complaint with GM corporate asking for them to buy the truck back. I've reported this to the better business bureau. And...I've contacted the local TV media who report on these types of crazy incidents. We'll see what happens next. More to come Monday.

 

Keep in mind a few things that help explain my concerns:

• I take care of the things I buy. I have great respect for what I own and I take the highest level of care to keep them in perfect shape. My truck was spotless. I use it as you should use a truck, but I take care of it.
• I don't let ANYONE drive my truck (other than my wife.)
• My truck only had 2800 miles on it...and now has nearly 3100 miles. So this mess added nearly 10% to the mileage which will affect my lease, wear and tear, etc. Who knows.

I wish this was easier. I should have been. But you can't make this stuff up...still can't believe this happened. The repair was bad enough, but it was repaired and could have been dealt with on it's own. This new twist just adds a whole other layer to the issue that really provides for additional significant concerns. Insult to injury.

 

Anyway, it's a total mess. I'll provide an update later this week once this plays out a bit more.

jesus. i have an oil leak as well. was ur issue resolved?

 

[GMCustomerService]

On 7/27/2024 at 11:48 PM, shanemack06 said:

jesus. i have an oil leak as well. was ur issue resolved?

 

We regret to hear of this oil leak with your vehicle and would like to take the time to further investigate this on our end. Please send us an email to [email protected]. Be sure to include your Username and Forum name in the subject line with additional details. We look forward to your email. 

[Jason Ridge]

On 7/27/2024 at 8:48 PM, shanemack06 said:

jesus. i have an oil leak as well. was ur issue resolved?

 

Thanks for the question. Yes, from what I can tell, the oil leak itself has been resolved. The issue now is that the truck has some remnant issues that are occurring following the removal and reassembly of the drivetrain. I'm working with GMC to resolve the issues...we'll see what happens.

[Michaelh707]

Wow just seen the photos, I just bought a 2024 and exact same oil leak. I hope this doesn’t screw me over.

[newdude]

We've had to put miles on customer's cars before.  It happens.  Setting monitors for inspection after repairs need to pass, vibrations, engine or transmission replacements, etc.  Is 200mi a bit much?  Yea, it is a bit much, but on the same instance YOU could have put 200mi on it and it leaked in that timeframe, so I think I'd feel better about it if it leaked in that timeframe in their possession instead of mine and inconveniencing me by having to take it back yet again.  If it leaked again, they could have pushed for a field engineer or use the district manager to maybe push for engine replacement if there was concern of block warpage.  

[Orlandodimas]

hello I'm having the same problem with my truck

Edited September 2 by Orlandodimas

[2024Pro]

I also have the 2.7  hope I don’t get the oil leak, I do however have when I’m parking the truck tends to lurch forward when I’m pulling in slowing into a parking spot. Called my dealership and told them about it anyone else having this issue? Also currently have clunking noises when going over speed bumps my truck barely has 650 miles