Running rough after Headgaskets & such - Ford Powerstroke Diesel Forum
 
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post #1 of 9 Old 02-18-2013, 07:58 AM Thread Starter
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Running rough after Headgaskets & such

to start,
2004 Excursion 6.0 Auto 4x4
Just finished Head gaskets with OEM hgs, ARP studs, EGR delete, New Oil Cooler, updated drain tube, 6.4 banjo bolts, blue spring, Warren 155cc injectors, updated stand pipes and dummy plugs.

The problems,
It takes a lot longer ( 8-10sec) to start up and when it does it has a noticeable miss feel to it. I haven't been able to drive it yet but i did let it idle for a while. It seems like it gets better if you turn it off and back on really quick. But when it goes into high idle the miss comes back. I'm also getting a cylinder 7 balance code.

I've read that this code could mean a bent push rod or also could be my ficm. any input is greatly appreciated.

2004 Excursion 6.0

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Some feminazi would claim that the part name and location indicates that a woman's place is in the passenger seat. Which is just wrong. We all know its in the kitchen.
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post #2 of 9 Old 02-18-2013, 08:09 AM
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Seems to be air in the HPOP system , you need to drive it to get the air out . #7 is at the back of the motor , the last injector that will be affected by air (lower HP oil pressure). Drive it , heat it up, you should be ok if everything is hooked up and tight.

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post #3 of 9 Old 02-18-2013, 08:19 AM
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Like you mentioned it could be a lot of things. Could be a push rod, rocker arm, or like the poster mentioned above air in oil system. Due to the large number of reports of bent push rods after rebuilds that's probably the way I would lean. In that case you don't want to run it for a long time like that. If you have run it for a while and you're still getting this issue I think you can rule air in the system out.

Can you feel any air popping out of the intake? I think your best bet would be to pull the passenger side valve cover (not fun), pulling and inspecting the #7 push rod and rocker arms.

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post #4 of 9 Old 02-18-2013, 08:30 AM Thread Starter
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Quote:
Originally Posted by Korx View Post
Like you mentioned it could be a lot of things. Could be a push rod, rocker arm, or like the poster mentioned above air in oil system. Due to the large number of reports of bent push rods after rebuilds that's probably the way I would lean. In that case you don't want to run it for a long time like that. If you have run it for a while and you're still getting this issue I think you can rule air in the system out.

Can you feel any air popping out of the intake? I think your best bet would be to pull the passenger side valve cover (not fun), pulling and inspecting the #7 push rod and rocker arms.
I dont hear any popping from the intake but every once in a while its like it lights that cylinder and spools real quick.

The only reason i dont think it is a push rod is because it runs good if you start it again. i also dont hear any tapping or anything.

2004 Excursion 6.0

Quote:
Originally Posted by Snake View Post
Some feminazi would claim that the part name and location indicates that a woman's place is in the passenger seat. Which is just wrong. We all know its in the kitchen.
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post #5 of 9 Old 02-18-2013, 08:34 AM
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Quote:
Originally Posted by Korx View Post
Like you mentioned it could be a lot of things. Could be a push rod, rocker arm, or like the poster mentioned above air in oil system. Due to the large number of reports of bent push rods after rebuilds that's probably the way I would lean. In that case you don't want to run it for a long time like that. If you have run it for a while and you're still getting this issue I think you can rule air in the system out.

Can you feel any air popping out of the intake? I think your best bet would be to pull the passenger side valve cover (not fun), pulling and inspecting the #7 push rod and rocker arms.
All valid points , but if you are sure that the cylinder was clean of fuel and oil after injector install, then i would run it to get the air out , just go easy on it.

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post #6 of 9 Old 02-18-2013, 08:37 AM Thread Starter
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Quote:
Originally Posted by greasyF250 View Post
All valid points , but if you are sure that the cylinder was clean of fuel and oil after injector install, then i would run it to get the air out , just go easy on it.
what do you mean clean of fuel and oil?

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Originally Posted by Snake View Post
Some feminazi would claim that the part name and location indicates that a woman's place is in the passenger seat. Which is just wrong. We all know its in the kitchen.
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post #7 of 9 Old 02-18-2013, 08:42 AM
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Also could potentially be an injector problem too I guess. Did you use new orings and copper washers?

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post #8 of 9 Old 02-18-2013, 08:47 AM
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Quote:
Originally Posted by 04fivefour View Post
what do you mean clean of fuel and oil?
He's thinking its like a 7.3 that needs to be purged of oil and diesel in the cylinder after an injector swap so it doesn't hydrolock. 6.0's don't have that issue. If everything is seated properly and you have no HPO leaks it most likely needs to be driven to purge the air out.

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post #9 of 9 Old 02-18-2013, 08:53 AM Thread Starter
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Quote:
Originally Posted by Korx View Post
Also could potentially be an injector problem too I guess. Did you use new orings and copper washers?
All the injectors have been replaced with warren 155s

2004 Excursion 6.0

Quote:
Originally Posted by Snake View Post
Some feminazi would claim that the part name and location indicates that a woman's place is in the passenger seat. Which is just wrong. We all know its in the kitchen.
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