2019 SLT Engine Oil Cooler Line - Uh Oh, leaky leaky

[1997SierraSLT]

Don’t miss those days of the never ending TSB’s year after year after year.  It’s GM’s way of informing their dealerships they furnish crappy unproven and unreliable vehicle components.  The consumers end up being GM’s guinea pig. 

[KLG]

On 1/8/2023 at 4:55 PM, dtking03 said:

Thanks for having the service bulletin on here. Mine blew off yesterday and dumped oil everywhere. Towed to dealership calling them in the morning.  Have 53K on my 2019.

I was wondering the outcome of your service. I have just over 50k and this happened yesterday. Did they cover at no charge although out of warranty?

[Bikerjon]

1 hour ago, KLG said:

I was wondering the outcome of your service. I have just over 50k and this happened yesterday. Did they cover at no charge although out of warranty?

What year is your truck?

[Steve-2019]

Disregard, error on my part.

Edited June 20, 2023 by Steve-2019

[romeactual]

@KLG Sorry to hear. No, I paid out of pocket. However, I setup a case with GM and was eventually reimbursed half of the expenses back in a check, and also was given $500 worth of GM rewards points.

[FedUPAmerican]

Good ol American GM JUNK.  I can't believe the crap going wrong on these $65,000 trucks. Its TSB this or that and recalls up the butt . Who's going to cover the cost of us blue collar workers down time from having to deal with all this BS ? This country bailed GM out once and still we get the same crap coming out of the factories. Unbelievable. GM motto = send em out the door and worry about recalls later.  

[Trent C]

I fixed mine yesterday on my 2019 GMC sierra 1500 AT4 6.2L with a super easy quick fix to get rid of the faulty crimps without replacing the whole assembly. 
 

1- drain your oil

2- cut the aluminum line just behind the crimped area with a angle grinder or pipe cutter

3- debur the inside edge of the pipe after cutting it with a deburring tool

4- flare the ends of the aluminum pipe with a flaring tool

5- cut new piece of 15/32” hose rated for transmission oil cooling (TOC)

6- apply small amount of oil around pipe to allow hose to be slide over the flared ends. (Using a heat gun on the end of the hose for a few seconds made this even easier)

7- slide your hose on and secure with new hose clamps. 
8- refill with oil

9- enjoy!!

[bcato]

I just noticed mine is leaking, and has been slowly for some time.   Same spot on the engine oil cooling line crimps.   Mine has 84k miles.  Been a great truck, was doing maintenance on it changing the front diff fluid and belts and when I dropped the lower dust covers there it was.   Guess I'll call the dealer and see what that will cost.