Dealer has had my '15 Denali for 3 months. What should I do?

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calif phil

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Fel Pro offer any gaskets for your rig? They are high quality gaskets and often times better than the OEM.

Mahle is also an OEM manufacturer and O'rielys has a headgasket set in stock for $160
 
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tdowns12

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It's great to know that there are 3rd party alternatives.

I suspect that there are differences within the L86 variants that prevent them from being universally acceptable though, or am I wrong? I believe that's the root cause of my issue now. I need a design that was a limited run.

I also suspect an aftermarket gasket would prevent the work from being covered under warranty which would put a large dent the resale value of the vehicle.
In the likely event that I drive it immediately to the Lincoln/BMW/Porsche dealership I would like to have a clean conscious on the status of the vehicle. I suspect I could work the dealer and GM to accept this as a viable alternative though.
 

swathdiver

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Went to the dealer this morning. There doesn't appear to be a timeline for getting my truck back. It's on a lift which shows some thought is being given to its condition I suppose. But, the block is exposed which always worries me and I'm not sure what dangling for 3 months is going to do to the finicky suspension parts.

Anyway, the story is that the head gasket on the '15 L86 (GM part #12700877) was discontinued and there are apparently none left in the known world. A cursory google search didn't turn up any online options with the part in stock. One site listed it as "special order item" and the rest listed it as discontinued.

That part number is available right now from a number of GM dealerships. GM doesn't make their own head gaskets, Fel-Pro or someone else does and they stick their name on them.

https://www.gmpartsdirect.com/oem-parts/gm-s-gasket-kit-12700877

https://paceperformance.com/i-23907207-12700877-sgasket-kit.html

https://www.gmpartscenter.net/oem-parts/gm-s-gasket-kit-12700877

https://www.gmpartsnow.com/oem-parts/gm-s-gasket-kit-12700877
 

91RS

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That part number is available right now from a number of GM dealerships. GM doesn't make their own head gaskets, Fel-Pro or someone else does and they stick their name on them.

https://www.gmpartsdirect.com/oem-parts/gm-s-gasket-kit-12700877

https://paceperformance.com/i-23907207-12700877-sgasket-kit.html

https://www.gmpartscenter.net/oem-parts/gm-s-gasket-kit-12700877

https://www.gmpartsnow.com/oem-parts/gm-s-gasket-kit-12700877

There is no stock available. Order from any of those sites and your order will be cancelled.
 

BG1988

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Went to the dealer this morning. There doesn't appear to be a timeline for getting my truck back. It's on a lift which shows some thought is being given to its condition I suppose. But, the block is exposed which always worries me and I'm not sure what dangling for 3 months is going to do to the finicky suspension parts.

Anyway, the story is that the head gasket on the '15 L86 (GM part #12700877) was discontinued and there are apparently none left in the known world. A cursory google search didn't turn up any online options with the part in stock. One site listed it as "special order item" and the rest listed it as discontinued.



https://wildhammermotorsports.com/1...ust-throttle-body-valve-cover-general-motors/
 

BG1988

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Is this thread real?
I'd collect my car and take it to another dealer.
fake probably 3 months lol

3 months is unreasonable to fix something


OP just needs to tell them TO PUT A NEW engine in it if they don't have the damn part...
 

915_Tahoe

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GM#12700877 cylinder head gasket kit
$169.68

No Inventory available for this Part

there are a few dealers in the states that have in stock

there was a big issue in Pontiac, MI. we had so much trouble receiving parts, cause of there remodel and system updates.
 

91RS

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The issue is the warranty. If the gasket is an aftermarket gasket, GM will not pay for the repair and there is no more warranty on the repair. If I'm giving up my warranty, it isn't going to be over using an aftermarket head gasket on a stock engine.
 

swathdiver

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The issue is the warranty. If the gasket is an aftermarket gasket, GM will not pay for the repair and there is no more warranty on the repair. If I'm giving up my warranty, it isn't going to be over using an aftermarket head gasket on a stock engine.

I've never been held hostage over a warranty. If I want to do something to my motor, I do it. Chances are he'll never have a problem with the engine again and if he did, they will never detect the use of the same gasket made by Fel-Pro that they get in an ACDelco wrapper. Being this a massive country of 300 million souls, someone, somewhere has those gaskets in their ACDelco wrapper sitting on a shelf collecting dust. Those L86s have been around long enough.
 

91RS

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Me either but the grand majority of people want the warranty when they’re spending $60k+ on a vehicle. They can absolutely figure out the gasket is different if they call for the parts. Gaskets are date coded also and have to correspond correctly as well.
 

WillCO

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Ah, I guess the lawyer will build the factory to make the head gasket!!

I’m not trying to make light of your situation because it does suck. This place is full of great (not) advice from the conspiracy theorists that will only get you more stressed out and won’t help. Unless you want to try and get the truck bought back, contacting the BBB, a lawyer, Trump, whoever will not magically produce a part that is on backorder. It’s all a waiting game at this point. I had to wait months for a transmission to be manufactured for my Cobalt SS years ago that was backordered. There is a process that takes time when a part goes on backorder, which could be caused by all kinds of reasons that can’t be foreseen.
That could all be true and still should not be the OP's problem.

It's unacceptable that an item such as a head gasket would be out of production and unavailable for a vehicle four model years old with hundreds of thousands of units on the road. No, there's no magic dust for the dealer or GM to sprinkle and to grow a new head gasket. On the other hand, everyone is shrugging their shoulders and leaving the OP without a vehicle.

GM should be covering the cost of a loaner car.
 

Blueinterceptor

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I don’t see the issue with the gasket either. When gm does a complete brake job, they don’t use gm rotors.
 

Doubeleive

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well Rene just checked and just told you there are some in stock at other dealers, nobody at gm knows how to transfer stock from one dealer to another?
 

91RS

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That could all be true and still should not be the OP's problem.

It's unacceptable that an item such as a head gasket would be out of production and unavailable for a vehicle four model years old with hundreds of thousands of units on the road. No, there's no magic dust for the dealer or GM to sprinkle and to grow a new head gasket. On the other hand, everyone is shrugging their shoulders and leaving the OP without a vehicle.

GM should be covering the cost of a loaner car.

You're right, it is totally unacceptable but totally unacceptable happens every day in every field of business so here we are. You really have to understand how logistics works these days. These parts are designed and manufactured all over the world and get shipped here, there, and everywhere. If GM looses a supplier, which is likely what happened, it takes time to make the deal, get manufacturing started, get parts shipped to warehouses, inventoried, and orders fulfilled. It's never intended to run out of parts. The 5th generation Camaro's release was delayed a few months because GM lost their supplier for some of the interior parts.

The OP hasn't stated (unless I missed it) whether he does or doesn't have a loaner or rental that GM is paying for.

I don’t see the issue with the gasket either. When gm does a complete brake job, they don’t use gm rotors.

Uhh, yes they do.

well Rene just checked and just told you there are some in stock at other dealers, nobody at gm knows how to transfer stock from one dealer to another?

A few dealers do have the gasket but generally when a hot item like this is backordered, the dealers who have them have them "ordered for a customer" and won't let them go.
 

WillCO

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The OP hasn't stated (unless I missed it) whether he does or doesn't have a loaner or rental that GM is paying for.
Actually, you're right. We don't know what the dealer, or GM, has done for the OP other than not fix his car. That's a good clarification and would be nice info to have.
 
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tdowns12

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I have a loaner. It'a SLE Acadia.

I have other cars and thankfully the weather along with my travel schedule have allowed me to enjoy them. Our holiday trips have been less comfortable and more cramped but I try not to be a baby about the loaner. However, with tailgating season starting and the weather due to change any week I am growing less fond of the prospect of going with my Yukon.
 

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