2019 Silverado trailboss 5.3l engine oil cooler line failure

BIGDOGx · October 28, 2020

17 hours ago, Jac365 said:

Truck back. Dealer had line in stock. Service dept told me it still had approx: 3 qts of oil in the pan. I think I got lucky being able to shut it down fast.

Maybe a safe thing to do is send a oil sample out for analysis to make sure all is well.

Hard to tell with sounds when these engines sound like a box of rocks from factory. 3 quarts left means you lost around 6 quarts of oil i believe.

IOMTT · January 6, 2021

On 4/7/2019 at 10:25 PM, MaverickZ71 said:

That’s a shame, especially on a brand new truck. So GM still can’t build a cooler line worth a damn. The more things change, the more they stay the same.

Not that they CAN'T, they WON'T..... even charging $50,000+

1997SierraSLT · January 6, 2021

GM doesn't need to build a quality vehicle as long as the consumer continues to purchase.

Tx_Bowtie · January 6, 2021

Found mine leaking, luckily hasn't blown out. Just because it has the inspection marks doesn't mean your safe.

Out of warranty, so bought the lines and am halfway through the repair.

NotoriousGT350 · January 30, 2021

I notice some spots a couple days ago, called dealership yesterday and took her in this morning. They said it's the oil cooler line as well and ordered the part which should be here by Monday. Hopefully get it taken care of before she lets go. It's got 41K miles and just bought last May CPO with another 6K miles in extended warranty.

Edited January 30, 2021 by NotoriousGT350

Shiva · February 2, 2021

On 1/6/2021 at 10:07 AM, Tx_Bowtie said:

Found mine leaking, luckily hasn't blown out. Just because it has the inspection marks doesn't mean your safe.

Out of warranty, so bought the lines and am halfway through the repair.

You may also want to use a dye to trace any additional leaks. At less than 300 miles I had a similar leak. Thought it was the oil cooler line until they used a dye to trace it. Turned out to be a plastic connector where the oil cooler line went into the cooler up front on the passenger side.

Just a thought.

RJJ5791 · February 3, 2021

Same here. I have a 2019 new body style Silverado LT Z71 with 55,000 miles. I caught it before any low engine oil lights came on. My daughter sent me a picture today of our driveway with a oil spot on it where I park. But same thing it’s coming from the hose or fittings right above the plastic shroud connected to the skid plate. The whole undercarriage is splattered with oil encluding the rear bumper. With all the oil splattered all over the undercarriage, the dipstick still showed full. I was able to limp it to the dealership from work. So I will be patiently waiting for the dealership’s call tomorrow.

HondaHawkGT · February 10, 2021

On 5/7/2020 at 11:32 PM, Colossus said:

GM will do everything they can to get out of having to do a recall, where as some other manufacturers are up front and honest and will recall the silliest things.

https://www.thetruthaboutcars.com/2016/11/best-worst-automaker-recall-rates/

mvintheoc · February 20, 2021

My 2019 has just over 36000 miles, just out of warranty. Line failed, got the message to shut down engine. GM only gave me a partial credit for the repair. This is absolutely unacceptable. Because I don’t live in Alaska or Canada I’m not covered by the service bulletin, even though it’s been below freezing here for 3 weeks. Waiting to hear back from them if they’ll make this right. Truck is still at dealership waiting to be repaired, still waiting to find out if there’s engine damage.

Aziz · March 8, 2021

During a recall they found out mine started leaking. 2019 custom TB 5.3L. Extremely disappointed. I now realize what people complaint about when the warranty expires. I can tell you those transmissions and the ticking noise on the left side of the engine will come with expensive bills once the warranty expires. GM is beyond repair, The quality is just not up there.

Donnyb313 · March 14, 2021

On 12/27/2019 at 10:16 AM, Pelleyr said:

mine has a recall on it

Does anyone know why the recall is only Alaska and Canada?

#ReggieQue · April 7, 2021

Happened to me on the highway today. 2019 Silverado Rst with 19,000 miles. Got off road immediately. This post has been super helpful. I know what questions to ask thanks to all of you.

Salsdisaster · May 11, 2021

add another one at 9500 miles. Happened on April 28th. Took a week for the dealer to look at it and they said the engine was locked up on Thursday 5/6/21. They had to drop the pan and find out if it would be a rebuild or replace. The S/A said the regional rep was there that day too. Wouldn't the Rep have the authority to make that decision?

On Friday I asked for a loaner, the dealer said there aren't any rentals available, haven't i been watching the news? All I could say was Huh? I asked for a loaner. They said call at the beginning of the week.

I don't know how the ones that have blown on the highway have survived. I was going 40, and pulled over and shut it off, what I thought was pretty quick.

I can't believe this crap. Not even 2 yrs old. what the hell did I even buy a new truck for. This is on top of the torque convertor that was replaced last year. I trusted my 15yr old truck more than this thing. Just so disappointed.

I haven't had any major issues with any other new vehicles we have purchased. Going to start looking into contacting GM directly,I guess. Another post had mentioned a continuing coverage letter, CCL, Who issues this type off agreement?

Sorry for the rant. I needed to vent