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Duramax Fifth Generation: 2011-2016 (LML) Discuss the fifth generation (2011-2016) of the 6.6L Duramax diesel engine & associated components. Engine related discussion ONLY.

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Old 05-01-2019, 06:28 PM   #1 (permalink)
DazzRozze
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Injector failure and need help

Hi, I need some help. I have a 2014 2500HD GMC Denali with the 6.6 Duramax V8 Diesel.
The Number8 Injector has failed through Radiator Fluid dripping down directly on the top of the Injector and caused it to short out.
Could someone please tell me how to remove and replace the Faulty Injector.
My GMC is in a workshop at the moment and they can,t see how to remove it without moving the Engine forward to clear the Firewall.
Any help or suggestions would be greatly appreciated.
Regards Daryl Poke

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Last edited by OkDually; 05-01-2019 at 07:19 PM. Reason: post adj/sig
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Old 05-01-2019, 07:31 PM   #2 (permalink)
OkDually
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Quote:
Originally Posted by DazzRozze View Post
Hi, I need some help. I have a 2014 2500HD GMC Denali with the 6.6 Duramax V8 Diesel.
The Number8 Injector has failed through Radiator Fluid dripping down directly on the top of the Injector and caused it to short out.
Could someone please tell me how to remove and replace the Faulty Injector.
My GMC is in a workshop at the moment and they can,t see how to remove it without moving the Engine forward to clear the Firewall.
Any help or suggestions would be greatly appreciated.
Regards Daryl Poke
Welcome to DieselPlace

Here is a Youtube Video showing a trick to getting the Injector out without a special tool.



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Old 05-01-2019, 11:35 PM   #3 (permalink)
DazzRozze
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Hi, It is the Number 8 Injector that is the problem( left hand rear ), there is not enough clearance between the Injector and the Firewall to lift the Injector out. Has anyone had any experience with this and what is the answer please.
Regards Daryl Poke.
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Old 05-02-2019, 08:31 AM   #4 (permalink)
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Quote:
Originally Posted by DazzRozze View Post
Hi, It is the Number 8 Injector that is the problem( left hand rear ), there is not enough clearance between the Injector and the Firewall to lift the Injector out. Has anyone had any experience with this and what is the answer please.
Regards Daryl Poke.
Since the firewall is in the way I would suggest unbolting the cab and lifting it up out of the way for easier access to the injector.
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1996 K3500 6.5L,( "F" Eng #141 cast block) 5 speed manual, crewcab, dually longbed: 208,000mi.
Diamond Eye 4" Turbo Back Exhaust w/2.5" Flo-Pro Crossover
AirDog II DF165 w/ tank sock delete - XDP
TD-Max boost controller - Kennedy Diesel
OPS extension hose - Leroy Diesel
Glow Plug Harness- PT Wiring Solutions
Glowshift Maxtow EGT,Boost, Fuel gauges
Boost & Fuel Pressure Bolts - Leroy Diesel
2/0 Battery Cable Upgrade - PT Wiring Solutions
PMD w/#9 resistor and Re-Location Kit, mounted to bumper - Leroy Diesel
GM-5 Turbocharger
4.10 gear ratio
OptiLube summer + Formula


Proud member #1039 of The 3500 Dually Club

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Old 05-05-2019, 05:09 PM   #5 (permalink)
sfcjones
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I agree, Lifting the Cab seems to be the best way. This process is with other manufactures as well.
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