2022 Yukon Denali Diesel fuel injector failure

[Barnum]

Had a fuel injector fail at 23k miles on my duramax on the interstate on Memorial Day. All the bells and whistles went off, check emission, real axel alert, real weird codes for the reported issue. Did not see any other posts on this on the forum but also know diesels are a minority here (checking to see if bud light will make me a duramax can) Part will be here Saturday fixed on Monday. Anyone heard of any issues? Hopefully it is a one off.

Thank you

 

[StephenPT]

Did they tell you which injector # failed? There's a TSB for the wiring harness on injector #2 getting pinched by the noise insulation shield. Not an actual injector failure, but the service procedure tells the dealership to replace both the wiring harness and injector along with shaving off the foam from the noise insulation that causes the pinched wiring.

https://static.nhtsa.gov/odi/tsbs/2022/MC-10211935-0001.pdf

https://static.nhtsa.gov/odi/tsbs/2022/MC-10208993-9999.pdf

 

[Barnum]

Did they tell you which injector # failed? There's a TSB for the wiring harness on injector #2 getting pinched by the noise insulation shield. Not an actual injector failure, but the service procedure tells the dealership to replace both the wiring harness and injector along with shaving off the foam from the noise insulation that causes the pinched wiring.

https://static.nhtsa.gov/odi/tsbs/2022/MC-10211935-0001.pdf

https://static.nhtsa.gov/odi/tsbs/2022/MC-10208993-9999.pdf

Thank you for the information, I will ask and report back.

 

[Barnum]

I received her back yesterday. It was actually cylinder 4. Mentioned a loose wire that caused a arch, short that took out the injector. No idea how the underpinning of diesel fuel injectors work. The dealership, two hours south of tampa treated me like gold Mike at Dixie GMC in Ft Myers Florida was first class. It sucks having a dead stick two hours from home coming back from a family vacation.

 

[Stbentoak]

I received her back yesterday. It was actually cylinder 4. Mentioned a loose wire that caused a arch, short that took out the injector. No idea how the underpinning of diesel fuel injectors work. The dealership, two hours south of tampa treated me like gold Mike at Dixie GMC in Ft Myers Florida was first class. It sucks having a dead stick two hours from home coming back from a family vacation.

Dixie is my dealer in FL when I'm there in the winter. They don't know me from Adam and have done the majority of warranty work on my vehicle at no charge and with a smile. For all the bashing most dealers get, these guys have treated me well also.

 

[yourmomsshlong]

Just had the same thing on my 2023 Denali Ultimate 6.2, 2 months after a lifter collapse. Bad injector on #6 cylinder. The codes are really weird. About to order a 2024 Ultimate XL with LM2 diesel hoping to avoid engine issues, so this is worrisome.

Had a fuel injector fail at 23k miles on my duramax on the interstate on Memorial Day. All the bells and whistles went off, check emission, real axel alert, real weird codes for the reported issue. Did not see any other posts on this on the forum but also know diesels are a minority here (checking to see if bud light will make me a duramax can) Part will be here Saturday fixed on Monday. Anyone heard of any issues? Hopefully it is a one off.

Thank you

 

[DuraYuk]

Just had the same thing on my 2023 Denali Ultimate 6.2, 2 months after a lifter collapse. Bad injector on #6 cylinder. The codes are really weird. About to order a 2024 Ultimate XL with LM2 diesel hoping to avoid engine issues, so this is worrisome.

Enjoy life. Anything human made can fail. Doesn't mean it will