Bought A&E scanner still blowing white smoke - Ford Powerstroke Diesel Forum
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Old 06-18-2014, 06:02 PM
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Bought A&E scanner still blowing white smoke

Folks I have a 2003 F250 SD 7.3L PSD 268K miles fully stock. Injectors were changed last year by Ford and glow plugs, and wiring harness, and this year just 4 mths ago Ford changed IPR and EBPS. I bought last week from Chip at Riff RAff the A&E scanner (awesome product and customer service) with Ford Bundle. Ran the Cyl contribution test, injector buzz test, ran codes etc. Everything came back fine. I am still blowing white smoke when I start the truck in the morn. When it warms up the smoke goes away but I still have some of the strong fuel smell. I checked the degas tank for fuel nothing and the oil; looks good no diesel as i just changed it. I'm at a loss; any guidance is greatly appreciated. I need to get this thing right because it is my only ride to and from work.

Thanks
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Old 06-19-2014, 08:04 AM
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Do you notice any misfire at all? Was the buzz test done with the engine cold? Was the CCT done with the transmission in drive (if you have an automatic)? Did the dealership do a compression test before replacing the injectors?
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Old 06-19-2014, 08:12 AM
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Did you check the glow plugs yourself? I had a bad one after 4 months one time on one of my 7.3's. Sounds like a glow plug issue to me still.
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Old 06-19-2014, 10:12 AM
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Could also be your glow plug relay. The oem ones are garbage.
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Old 06-19-2014, 04:28 PM
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Don't notice any misfire, the engine seems to run fine no skipping or loping. I doubt the dealership did a compression test, it seems to have good compression from the way it cranks, the CCT was done in park. Let me know what you think, thanks for the reply
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Old 06-19-2014, 04:28 PM
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Even though the glow plu relay tested good, could it still be that? What do you think. Thanks
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Old 06-19-2014, 04:29 PM
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I just ran the glow plug test with the AE scanner, could they still be bad? Thoughts? Thanks
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Old 06-19-2014, 04:56 PM
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What have the temperatures been where you are?

For a glow plug test in AE to have any meaning, the truck would have to have a glow plug control module, i.e. CA emissions. Otherwise, there's no feedback from the glow plug system to the PCM. It's not terribly difficult to check them with a multimeter. You can check resistance from the valve cover harness connector. The front and back 2 pins on the connector are for the glow plugs. Resistance to ground should be in the neighborhood of 0.6 - 2.1 ohms. A bit outside of that range isn't going to matter.

CCT should be done with the transmission in drive, and A/C off.
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