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Discussion Starter #1
Purchased my Colorado in July of 2017. Joined your site to find out if any one has had the same problem as I do. On Jan 28 of this year I had a emission code come up at 5200 km's. I took the truck in to find out what had happened. My dealer told me that a injector had failed and had also caused a injector line to fail (actually split the line from to much pressure). I'm now in a rental vehicle still waiting for new upgraded line to be made. Has anybody else had this same problem?
 

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Haven't heard of a fuel injector failing on these yet, but I could see it I suppose. Did they say why it failed?

My first thought though, based on what you said of the injector failing and then causing an injector supply line to crack and fail makes me think you had some sort of blockage in the injector. Like, you had some debris get past your fuel filter and make it's way to the injectors and plug one up and thus cause it and the supply line to fail. If this is what happened, I could definitely see it. Assuming these injectors are just like or similar to the injectors on the 6.6 Duramax in the full-size pickups which have very small injector holes where they squirt the fuel out, it wouldn't take much to plug one up. That's why with those engines, it was always good practice to replace your filters often since those were cheaper than injectors.
 

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3000 miles he shouldn’t need to change his fuel filters. I thought he was talking about the exhaust fuel injector, could’ve gotten crudded up
 

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Discussion Starter #5
Haven't heard of a fuel injector failing on these yet, but I could see it I suppose. Did they say why it failed?

My first thought though, based on what you said of the injector failing and then causing an injector supply line to crack and fail makes me think you had some sort of blockage in the injector. Like, you had some debris get past your fuel filter and make it's way to the injectors and plug one up and thus cause it and the supply line to fail. If this is what happened, I could definitely see it. Assuming these injectors are just like or similar to the injectors on the 6.6 Duramax in the full-size pickups which have very small injector holes where they squirt the fuel out, it wouldn't take much to plug one up. That's why with those engines, it was always good practice to replace your filters often since those were cheaper than injectors.
 

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Discussion Starter #6
Thanks for all the insight. The dealer/service department haven't said exactly why or what happened to cause this.
 
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