2019 Silverado trailboss 5.3l engine oil cooler line failure

Shawn O'Leary · April 29, 2019

They assemble 1,000 Sierras and Silverados in the F.t Wayne plant each day... pretty detailed video of the process:

Shawn O'Leary · April 30, 2019

Dealer just told me the new engine arrived today, so hopefully I'll be back in my truck by the end of the week. GMC customer care called me as well; once the new engine is in they will be calling me to discuss what they can offer as compensation for the inconvenience and also "provide confidence in the repaired truck." I'm guessing that means warranty extension and/or some sort of service plan. Anyone been through something like this before? What should I be negotiating for? I don't want to be an opportunist but I also don't want to leave something on the table that I might need down the road.

Zbass_10 · April 30, 2019

1 minute ago, Shawn O'Leary said:

Dealer just told me the new engine arrived today, so hopefully I'll be back in my truck by the end of the week. GMC customer care called me as well; once the new engine is in they will be calling me to discuss what they can offer as compensation for the inconvenience and also "provide confidence in the repaired truck." I'm guessing that means warranty extension and/or some sort of service plan. Anyone been through something like this before? What should I be negotiating for? I don't want to be an opportunist but I also don't want to leave something on the table that I might need down the road.

I don't think anyone should feel like an opportunist when they spend big $$$ on a new truck and the engine blows in the first few months. If they want you to be a repeat customer they should be bending over backwards to keep your business and for having to deal with this.

ShamrockShooter · April 30, 2019

Dealer just told me the new engine arrived today, so hopefully I'll be back in my truck by the end of the week. GMC customer care called me as well; once the new engine is in they will be calling me to discuss what they can offer as compensation for the inconvenience and also "provide confidence in the repaired truck." I'm guessing that means warranty extension and/or some sort of service plan. Anyone been through something like this before? What should I be negotiating for? I don't want to be an opportunist but I also don't want to leave something on the table that I might need down the road.

My understanding is it is really at the descretion of the regional district rep as to what they will offer you. I would ask the dealer service manager to speak with the district rep about Goodwill warranty or something similar.

Also know GM customer care has separate authority to give $500 coupons for things like accessories and service vouchers.

So try to double dip and get something from both.

I also heard GM has a policy that if you are out of you vehicle more than 21? days you might get some sort of credit towards your truck payment. I heard that second hand but don't know if it's true.

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BIGDOGx · April 30, 2019

5 hours ago, Shawn O'Leary said:

Dealer just told me the new engine arrived today, so hopefully I'll be back in my truck by the end of the week. GMC customer care called me as well; once the new engine is in they will be calling me to discuss what they can offer as compensation for the inconvenience and also "provide confidence in the repaired truck." I'm guessing that means warranty extension and/or some sort of service plan. Anyone been through something like this before? What should I be negotiating for? I don't want to be an opportunist but I also don't want to leave something on the table that I might need down the road.

I would ask for a gmpp extended platinum warranty 7/80k or better if they offer it. They can also grant you certificates for accessories, but if it was me a full extended warranty would be my main want here. Powertrain warranties don't cover enough imo, only take a full extended gmpp so that your mostly covered for any issues that could possible pop up in the future.

quicksilverc5 · April 30, 2019

In looking at the cooler design, it looks like you may be able to replace the whole setup with an AN fitting/braided line setup. The attachment to the block looks to be similar to the LS designs, When I have a chance I need to look at the attachment to the radiator. Of course if you do this and mess up its all on you. Other option is to do a delete. We'll have to see if its an issue like the window....bad supplier or if it a design flaw do to pressure changes. I notice that my Oil Pressure varies quite a bit while driving and that could be stressing the connection.

kniespolice · April 30, 2019

Got my truck back from the dealer. Service manager is getting an extended warranty for my engine, even though he said I only lost a quart and a half from leaking oil at bad o ring.

lebag335 · April 30, 2019

47 minutes ago, kniespolice said:

Got my truck back from the dealer. Service manager is getting an extended warranty for my engine, even though he said I only lost a quart and a half from leaking oil at bad o ring.

O ring? That’s not related to the oil cooler line, right? Something else we have to worry about. Ugh..

relevante · May 1, 2019

6 hours ago, BIGDOGx said:

I would ask for a gmpp extended platinum warranty 7/80k or better if they offer it. They can also grant you certificates for accessories, but if it was me a full extended warranty would be my main want here. Powertrain warranties don't cover enough imo, only take a full extended gmpp so that your mostly covered for any issues that could possible pop up in the future.

I agree. Keep in mind that you need to be covered fully not only from issues related to the original failure, but also from issues potentially caused by the repair of the original failure, in this case the replacement of the engine. There’s quite a bit going on there. When the guys at the dealer that mostly do oil changes don’t run a wiring harness in exactly the right place, strain an electrical connector because they didn’t notice it and forgot to unplug it, don’t torque a bolt to spec, or forget one entirely, or whatever, the resulting issues aren’t necessarily going to be limited to the powertrain, and certainly not to the narrow window of things that the powertrain warranty covers. Your new truck shouldn’t have been subject to any of this, nor should you be having to spend your time dealing with it and worrying about it. Obviously sh*t happens from time to time, but it’s their responsibility to make you feel good about it, not the other way around.

You’re also doing the rest of us a service by getting everything you can. The more it costs them to resolve when the issue occurs, the more likely they are to actually preemptively fix it.

Edited May 1, 2019 by relevante

Silverado4x4 · May 1, 2019

On 4/30/2019 at 7:44 PM, lebag335 said:

O ring? That’s not related to the oil cooler line, right? Something else we have to worry about. Ugh..

kiniespolice drives a 2019 Colorado LT, 3.6 L on page 6 of this thread.

Edited May 1, 2019 by Silverado4x4

Shawn O'Leary · May 2, 2019

Got an update on timing yesterday... early to mid next week before I get the truck back. So a week to a week and a half for engine install (the old one is already out). Seems like a long time to me, but I've never done an engine swap. Just curious... am I the only one where this failure led to engine loss?

Zbass_10 · May 2, 2019

18 minutes ago, Shawn O'Leary said:

Got an update on timing yesterday... early to mid next week before I get the truck back. So a week to a week and a half for engine install (the old one is already out). Seems like a long time to me, but I've never done an engine swap. Just curious... am I the only one where this failure led to engine loss?

I had an engine loss as well...potentially because my dealer drove the truck after it was towed in. Today is 22 days since it happened for me. Last I heard anything from them was Friday, engine was tore down but not out. They hadn't made a decision on rebuild or engine swap yet. I told them rebuild wasn't acceptable.

Shawn O'Leary · May 2, 2019

3 minutes ago, Zbass_10 said:

I had an engine loss as well...potentially because my dealer drove the truck after it was towed in. Today is 22 days since it happened for me. Last I heard anything from them was Friday, engine was tore down but not out. They hadn't made a decision on rebuild or engine swap yet. I told them rebuild wasn't acceptable.

Absolutely not acceptable.... both on the time you've had to wait for them to decide and the idea of a rebuild. Have you called GM customer care? 1-866-790-5600. The rep there expedited the delivery of my new engine.

jasnak · May 2, 2019

2 hours ago, Shawn O'Leary said:

Got an update on timing yesterday... early to mid next week before I get the truck back. So a week to a week and a half for engine install (the old one is already out). Seems like a long time to me, but I've never done an engine swap. Just curious... am I the only one where this failure led to engine loss?

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Edited May 2, 2019 by jasnak

Zbass_10 · May 2, 2019

2 hours ago, Shawn O'Leary said:

Absolutely not acceptable.... both on the time you've had to wait for them to decide and the idea of a rebuild. Have you called GM customer care? 1-866-790-5600. The rep there expedited the delivery of my new engine.

I contacted Chevy Customer Care the Friday I found out. I have a Chevy rep that is only responsible for overseeing the repair. The rep has been essentially useless. I also contacted GM customer care and they've outlined to me that there's nothing else they can do other than assign me another advisement rep.