About the Cody Test...
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Joined: Mar 2014
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From: Douglassville, PA
About the Cody Test...
I have an engine with a long start issue 6 seconds to fire. Fires in less than two with an off/on. Naturally the Cody test comes to mind as a first. The oil reservoir seems to remain full. I got all hooked up with a quick disconnect air fitting to the hole in the head and hooked it up with 100 PSI. Closed all the garage doors, turned off the radio to make it as quiet as I could. Got the air leaks down to where they're inaudible. There is no gurgling. If there is gurgling how loud should it be? And it appears as though the oil level has not gone down, I can still see it right there in the plug hole when I pull the fitting back out. Do I need a stethoscope to hear a leak if there is one?
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Joined: Mar 2007
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From: Texas
Yea, about the Cody test. It all sounds well and good until your niece makes you work on a 2003 6 leaker where some engineer decided it was a good idea to bury the IPR and ICP sensor back underneath the turbo.
Takes a special socket and some southern engineering to make something to pressure test from the IPR, as the ICP sensor is buried even further back in the no go zone.
Sorry. I'm just bitter about some of the stupid engineering on the 6.0 after having to work on the nieces truck.
Takes a special socket and some southern engineering to make something to pressure test from the IPR, as the ICP sensor is buried even further back in the no go zone.
Sorry. I'm just bitter about some of the stupid engineering on the 6.0 after having to work on the nieces truck.
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Hotshot
Joined: Mar 2014
Posts: 10,750
Likes: 1,065
From: Douglassville, PA
Yea, about the Cody test. It all sounds well and good until your niece makes you work on a 2003 6 leaker where some engineer decided it was a good idea to bury the IPR and ICP sensor back underneath the turbo.
Takes a special socket and some southern engineering to make something to pressure test from the IPR, as the ICP sensor is buried even further back in the no go zone.
Sorry. I'm just bitter about some of the stupid engineering on the 6.0 after having to work on the nieces truck.
Takes a special socket and some southern engineering to make something to pressure test from the IPR, as the ICP sensor is buried even further back in the no go zone.
Sorry. I'm just bitter about some of the stupid engineering on the 6.0 after having to work on the nieces truck.
Post Fiend
Joined: Mar 2007
Posts: 26,966
Likes: 50
From: Texas
On the 2003 6.0, they decided to place the ICP buried way back underneath the up pipes and turbo so you can't actually reach it unless you're a black belt in yoga. They realized their mistake somewhere in the 04 model year an dput it back on the head.
I don't think you can physically get to the ICP sensor on the 03 6 leaker without pulling the turbo.
Of course you have to pull the turbo, intake manifold, oil and fuel filter housing, etc. to change the HPOP on the 6.0 too. The 7.3 is so much easier to work on.
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Joined: Aug 2015
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From: NW IA
On the 2003 6.0, they decided to place the ICP buried way back underneath the up pipes and turbo so you can't actually reach it unless you're a black belt in yoga. They realized their mistake somewhere in the 04 model year an dput it back on the head.
I don't think you can physically get to the ICP sensor on the 03 6 leaker without pulling the turbo.
Of course you have to pull the turbo, intake manifold, oil and fuel filter housing, etc. to change the HPOP on the 6.0 too. The 7.3 is so much easier to work on.
I don't think you can physically get to the ICP sensor on the 03 6 leaker without pulling the turbo.
Of course you have to pull the turbo, intake manifold, oil and fuel filter housing, etc. to change the HPOP on the 6.0 too. The 7.3 is so much easier to work on.
Could have left the intake and oil/fuel filter in place as well, but that way next time when she calls for an HPOP you will save yourself some time
Sorry, couldn't resist. I know about as much as the 7.3 as you the 6.0 and will probably have to meander over here at some point with an issue. Seems the farmer I part time for who owns several 7.3's and 6.0's likes my work and cheaper labor rate.
It's all good, we all still drive real trucks here!
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Post Fiend
Joined: Mar 2007
Posts: 26,966
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From: Texas
03 intake crosses over the HPOP cover. Not sure how to leave it in place without a lot of cussing and possibly not being able to get it out. The oil/fuel cansiter was a result of the intake manifold removal. But she decided to do an EGR delete since we were in that far, so removing the manifold is something we kind of needed to do.
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Post Fiend
Joined: Mar 2015
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From: Blairsville, Pennsylvania
I have a question about the Cody test. Should the system HOLD air pressure, as in turning off the air valve and the system keeps the same pressure?
Or does it require makeup air and we're just looking for bigger leaks?
Or does it require makeup air and we're just looking for bigger leaks?
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Joined: Mar 2014
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From: Douglassville, PA
Cody did chime in and say that we should be able to hear a leak gurgling in there, I heard none. I also know that my air hose has very slow leaks in it that are inaudible so just closing off the hose and letting it sit doesn't work. I did leave the whole tank hooked up for a couple of hours and the compressor had not lost enough pressure to kick on so I figured I was good, then when I pulled my fitting back out of the head the oil level was still right there to the edge. If it was leaking in there I figure that the oil level would have dropped.
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