Fuel Injector Issues - 2015 Denali

[Benjamins]

2017 Denali here with 18k miles and I'm in the service center now. I got a CEL and the code points to an injector failure. I've had the car a year. Will see how chronic this becomes.....

 

[Shadowchaser]

any body knows fuel injector part number?

 

[Tahoe14]

12684125- Try Ebay for better pricing, no tax and free shipping.

 

[Hayley L]

2017 Denali here with 18k miles and I'm in the service center now. I got a CEL and the code points to an injector failure. I've had the car a year. Will see how chronic this becomes.....

Mine is a 2017 GMC Yukon Denali (13000 miles currently). Had first injector (#3) go bad May 17, 2018 (11000 miles) and 2nd injector (#6) go bad June 13, 2018. Seems like there is something causing the injectors to go bad???

 

[Kaygeez]

I’d go with rock auto


I’d change them ASAP. I kinda waited and that ended up bending/breaking a rod. Good luck.

 

[jl449]

2015i Denali.. about a year ago I got a CEL. dealer replaced all 8 injector and fuel rail. Also, flashed module. Dealer told me 2 injectors failed but replaced all 8. mentioned there was a revision of the injectors and that is why they had to replace the fuel rail and flash the module. That's what I was told told and also was writen on the service sheet.

 

[tdowns12]

2015i Denali with 83k miles on my 2nd round of injector issues. I have the 5 year/100k mile powertrain warranty but dealer is saying these aren't covered. Should I be suspicious?

 

[cardude2000]

2015i Denali.. about a year ago I got a CEL. dealer replaced all 8 injector and fuel rail. Also, flashed module. Dealer told me 2 injectors failed but replaced all 8. mentioned there was a revision of the injectors and that is why they had to replace the fuel rail and flash the module. That's what I was told told and also was writen on the service sheet.

Yep have had multiple injectors changed.


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[longhornjon]

Just had all 8 replaced at 40,000 miles on the wife's 2016 Yukon Denali. This has to be a known issue bc after some push back, GM agreed to foot most of the bill, even though we were past warranty. As with others, we always perform regular maintenance and use premium gasoline at every fill up.