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Bad upper radiator inlet hose

Stylous

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Nov 9, 2023
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25,371 on ‘26 Canyon AT4 and the top inlet radiator started leaking. Took it to the dealer and they replaced it. Had to come from factory - no source parts available yet so they had the truck for almost two weeks. Apparently there is a rubber O-ring built into hose which is failing. Other users reporting the same issue. So they covered it under warranty this time, but I guess in another 25K miles I’ll have to pay for it since they put the same part on there. This is what happens when you over engineer/complicate simple parts like a hose!
 

The design is also used on the Trailboss and a few other gm vehicles. Lots of pissed off folks out there, cause they are out of the 3/36.
 

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