Has anyone else had this problem yet? It seems to be more common on the driver’s side and slightly on the passenger side. I’m not paying the dealer to mess it up again. I had both IWEs replaced during the warranty, and the driver’s side failed again just out of warranty, so I live with it. I just can’t turn and accelerate well in 4WD, and when it starts grinding, I go into 4H, and it pops into place, haha. Anyway, has anyone here tackled the coolant leak at the turbos? It seems to be the most expensive repair for coolant.
I found a video online where a guy did it without taking the turbos off. He had to use his kid’s small hand to get up in there to start tightening the new nut.
Pretty normal guy. Nothing fancy.
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Adrian said:
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How much did that end up costing you?
Adrian said:
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Cost$$$???
I am currently in the process of completing the repairs.
This is something I’m a bit concerned about. I had a random coolant leak about a year and a half ago — it would occasionally just “pee,” and when it did, it was behind the firewall — NOT up front near the radiator or front of the engine.
My truck runs hot, and it has been that way for a few years, but the local dealer isn’t willing to spend the time and effort figuring it out. Today I was on the 405 transitioning to the 14 Fwy in So-Cal, not far from Magic Mountain, and the engine temp got to 230F on the slight incline. When I first got the truck, it NEVER got even remotely close to that — I think the high was about 215 or something with just normal driving, regardless of hills or passes.
The dealer told me to bring it back when it’s overheating. 
I may have to start replacing things on it — thermostat and beyond — and see when the problem disappears, or take it to a mom-and-pop radiator/cooling shop that can spend the time to properly diagnose things even if it won’t be covered by my extended warranty.
But the turbo cooling seems to be linked, as it’s all part of the cooling system…
Had the same thing happen on my 2014. It turned out to be one of the fittings going into the turbo…apparently they were plastic and prone to failure. I had them replaced with new metal fittings (both turbos). It ran me about $800 CAD, and I haven’t had a problem since.
Yeah. My driver-side turbo is leaking coolant. I’ve had so many problems with this truck; I’m over it. She’s sold as soon as possible.
I did them on a 2011; it’s pretty easy, but I ended up removing the turbo since I was doing the manifolds anyway. The 2015 is a bit easier; the fittings are much more accessible. Even if you ended up removing the turbo to get to both fittings, it could easily be done in a few hours. However, I think the dealer charges like 12 hours per side or something.