6.0 randomly shuts off
Thread Starter
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Tuned
Joined: Apr 2006
Posts: 331
Likes: 4
From: grorgetown,in
6.0 randomly shuts off
04 with 170k miles. truck runs fine. every now and then truck shuts off while driving. turn it off the it restarts everytime. only code that comes up is number 6 injector. the contribution test injector is firing right. ficm voltage is 47.5. has new ipr and hpop also 6k miles ago. could it be number 6 shorts out or something crazy killing truck? or maybe a crank sensor. im kinda stumped right now
Fleet Owner
Joined: Nov 2003
Posts: 27,901
Likes: 3,617
What are you reading codes with?
Is your 04 an early or late 04?
Have you looked for wiring harness chafing? Especially on the FICM harness to the injectors?
Wire chafing locations due to having an injector code:
Upper left (driver's side) valve cover or valve cover stud near the FICM
Left front valve cover hold down bolts/studs
Also, other common locations:
Exhaust Back Pressure (EBP) sensor bracket at thermostat housing
Idler pulley under the thermostat (wiring routed around the power steering pump)
Right valve cover at glow plug control module (GPCM)
CKP wiring near A/C compressor and belt tensioner
Front left of intake manifold near breather tube and air inlet duct
Inspect terminals for "backed-out" or bent pins (FICM, sensors, etc)
Accelerator Pedal pivot point (under dash)
PCM harness at battery box
12A581 harness circuit 1044 (WH/YE) near connector C1443 (left rear corner of engine compartment)
Is your 04 an early or late 04?
Have you looked for wiring harness chafing? Especially on the FICM harness to the injectors?
Wire chafing locations due to having an injector code:
Upper left (driver's side) valve cover or valve cover stud near the FICM
Left front valve cover hold down bolts/studs
Also, other common locations:
Exhaust Back Pressure (EBP) sensor bracket at thermostat housing
Idler pulley under the thermostat (wiring routed around the power steering pump)
Right valve cover at glow plug control module (GPCM)
CKP wiring near A/C compressor and belt tensioner
Front left of intake manifold near breather tube and air inlet duct
Inspect terminals for "backed-out" or bent pins (FICM, sensors, etc)
Accelerator Pedal pivot point (under dash)
PCM harness at battery box
12A581 harness circuit 1044 (WH/YE) near connector C1443 (left rear corner of engine compartment)
Thread Starter
|
Tuned
Joined: Apr 2006
Posts: 331
Likes: 4
From: grorgetown,in
i will check the harness. owner had head studs and cooler fixed. so the shop may have wires pinched somewhere. ill check it out. thanks for input will let you know if i find anything
Lead Driver
Joined: Jul 2004
Posts: 6,951
Likes: 512
From: Foothills, CA
Do you have adjustable pedals? Had a friend with an '06 and that was what caused his to die for no reason. Dealer repaired it under warranty, and I would expect it to capture a code (loss of throttle signals, etc.). Mark likely has you pointed in the right direction, just thought I'd mention this one...
Scott
Scott
Thread Starter
|
Tuned
Joined: Apr 2006
Posts: 331
Likes: 4
From: grorgetown,in
Do you have adjustable pedals? Had a friend with an '06 and that was what caused his to die for no reason. Dealer repaired it under warranty, and I would expect it to capture a code (loss of throttle signals, etc.). Mark likely has you pointed in the right direction, just thought I'd mention this one...
Scott
Scott
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Thread Starter
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Tuned
Joined: Apr 2006
Posts: 331
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From: grorgetown,in
no adjustable pedals. ordered new injector harness. plugs on ficm end were cracked. leta hope for the best
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Thread Starter
|
Tuned
Joined: Apr 2006
Posts: 331
Likes: 4
From: grorgetown,in
04 with 170k miles. truck runs fine. every now and then truck shuts off while driving. turn it off the it restarts everytime. only code that comes up is number 6 injector. the contribution test injector is firing right. ficm voltage is 47.5. has new ipr and hpop also 6k miles ago. could it be number 6 shorts out or something crazy killing truck? or maybe a crank sensor. im kinda stumped right now
Hotshot
Joined: Apr 2010
Posts: 19,061
Likes: 238
From: Saratoga Springs,UT
if you were to post exact DTC the info we post will be more specific to help
do you know brand HPOP installed
Since it so recently rebuilt might be worth a check of IPR Screen for trash
do you know brand HPOP installed
Since it so recently rebuilt might be worth a check of IPR Screen for trash
Thread Starter
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Tuned
Joined: Apr 2006
Posts: 331
Likes: 4
From: grorgetown,in
not sure on brand or if it even was replaced. alot of dirt around hpop housing for 8k miles. air checked both heads. seems to be good. no air leaks. took ipr out and screen was good. duty cycle is 24 at idle when warm. go down rd and stand on it it goes to 80%. it has hit 85 and start falling on face. im leaning towards hpop is weak. guy said he never had an issuse till shop bullit proffed it. am i missing something before i pull pump out? thanks
Lead Driver
Joined: Jul 2004
Posts: 6,951
Likes: 512
From: Foothills, CA
See many folks recommend Adrenaline pump but don't use their gaskets for install, use OEM...
Thread Starter
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Tuned
Joined: Apr 2006
Posts: 331
Likes: 4
From: grorgetown,in
i know they charged 934$ for the pump. not counting labor. ill be curious to get cover off and see it.