radiator leak heads up

[roadkill5.3]

found a TSB, PI1513F, found it here, from a post a while ago using google.

i found my issue by a low reservoir, well lower than it should be, noticed when i was doing my intake. 

i marked it, and kept an eye on it. 

warranty was going up in 60 days. 

checked it 4 weeks after my mark, was 1/2" lower.

flashlight, found it. driver side top corner. 

researched, found the TSB luckly, powertrain up in 30 days now. 

called local dealer, took me right in, replaced tstat housing and radiator under warranty. 

 

check your trucks guys. 

 

1500, silverado, 2016, 5.3, 34k miles.

   

Edited March 1, 2021 by silvyar91

[YYC-SIERRA]

Anyone know for sure if the 17 and 18 models are excluded from this TSB?

 

I see it's dated January 2019.

 

https://www.tsbsearch.com/GMC/PI1513F

 

 

[JONBLARC7]

Will they fix this if your way out of warranty.  My 2014 is doing this for sure.  I was just going to do it my self,  but if they'll do it for free they can have it. LOL

[Eddie 70]

I backed into my parking spot at work on cold and rainy morning. I could see a small cloud of steam coming from the front of my truck. I walked around front and could smell the antifreeze. I was still just inside my warranty and they replaced mine. It might have been by the TSB mentioned above. It's been several years back now.