I was told that your problem is the oil that you are using. Supposidly the only oil that has the anti-foaming additive is the Motorcraft 15W40 diesel oil. I asked the service tech about using other than Motorcraft oil just because of availability and he said that Rotella and Delo did not have the antifoaming additive that you need. Since the injectors fire as a result of oil pressure the foam was not creating the pressure that just oil did and this is what caused the miss that you are describing. I personally thought that all oils had anti-foaming additives in them.
Service tech is wrong. Delo and Rotella bith have the right anti-foaming additives. I changed mine 1000 miles ago with Delo, had the latest flash and mine idles smooth as silk. The quality of advise from the tech is directly proportional to the knowledge of the tech. The first one that changed my oil didn't even know there were two fuel filters, and refused to believe me when I told him there were. I no longer go there.
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2005 F250 Supercrew Lariat, 2003 F250 4x4 Supercrew Lariat. 1999 F150 hunting truck(ragged out but pulls like a tractor). 2005 C6 "arrest me red" vette convertible (to save fuel )
I used the Delo 400 15-40 on my first oil change. It idles fine. I usually let it idle for a couple minutes both on startup and shutdown.
I also only put in 14 quarts. I ran the engine and let it sit. Checked the oil and it showed between Min and Max. I asked the service people about it and they said that was fine.
Well fellas, the service tech was part right. It is the oil, or more specifically the flow ability of the oil. I can easily understand the rough idle being caused by oil foaming, after a hard run, but after a couple of cranks of the engine. No way. IF the problem were foaming of the oil, it would not go away after a minute or so. Now if the oil is not flowing to the injector fast enough to be able to accomplish the pilot injection(two strokes of the intensifier, rather than one big one) The on either stroke you may not get enouhg to accomplish a good ignition, hence the rough idle. Romping, probably the same thing. I've read that the slower start is due tio allowing oil pressure to get up high enough to better atomize the injected pulse, and the pilot injection was disabled, to help smooth the idle. More than likely due to the reason above.
What happened to IHC03?
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2003 F 250 Lariat Super Duty 6.0L 6 speed, with all the goodies
Originally posted by emtabmm Heads up! New flash coming 1st quarter 2004!!!! "the latest and greatest..."
Do you know the big difference?
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Administrator
tim.lamkin@internetbrands dot com
Life is not only time……paradoxically, it is the denial of time!
What lies behind us and what lies before us are tiny matters compared to what lies within us.
Originally posted by Lariat Well fellas, the service tech was part right. It is the oil, or more specifically the flow ability of the oil. I can easily understand the rough idle being caused by oil foaming, after a hard run, but after a couple of cranks of the engine. No way. IF the problem were foaming of the oil, it would not go away after a minute or so. Now if the oil is not flowing to the injector fast enough to be able to accomplish the pilot injection(two strokes of the intensifier, rather than one big one) The on either stroke you may not get enouhg to accomplish a good ignition, hence the rough idle. Romping, probably the same thing. I've read that the slower start is due tio allowing oil pressure to get up high enough to better atomize the injected pulse, and the pilot injection was disabled, to help smooth the idle. More than likely due to the reason above.
What happened to IHC03?
Lariat, would like to talk on the phone with you.
Is it possible? I'll send my number if so.
Tim
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Administrator
tim.lamkin@internetbrands dot com
Life is not only time……paradoxically, it is the denial of time!
What lies behind us and what lies before us are tiny matters compared to what lies within us.
They are trying to get the mileage higher after the first couple flashes and get the idle quality issues resolved. I have the luxury of being in a metro Louisville dealer so I have contacts at Louisville assy plant (Explorers) and the Kentucky Truck plant (superdutys, F250, F350's, F450's, F550's and Excursion's). Lots of info available, just ask.....
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71 F100 Sport Custom, 83 Crown Vic 2dr, 01 Escort, 01 Sable, 1975 Ford Ltd
With enough time and money, anything is possible...
Originally posted by emtabmm They are trying to get the mileage higher after the first couple flashes and get the idle quality issues resolved. I have the luxury of being in a metro Louisville dealer so I have contacts at Louisville assy plant (Explorers) and the Kentucky Truck plant (superdutys, F250, F350's, F450's, F550's and Excursion's). Lots of info available, just ask.....
Andy, I for one…am impressed that you have opened yourself up to this. You could be in a difficult situation. Nevertheless very honorable, and great that we on this forum have someone to ask questions to. There are many dealerships out in the world, which do not actually know what is going on with a great product.
__________________
Administrator
tim.lamkin@internetbrands dot com
Life is not only time……paradoxically, it is the denial of time!
What lies behind us and what lies before us are tiny matters compared to what lies within us.
I finally took my truck back to the dealer for the rough idle after programming. They agreed it wasn't right and as it turns out, I had a bad #6 injector that needed to be replaced.
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