04 f550 few questions - Ford Powerstroke Diesel Forum
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Old 12-12-2011, 03:26 PM
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04 f550 few questions

Test drove an 04 550. I have a scan gaugeII and the ect eot numbers stayed within the 15*. What caught my attention was 1, the white smoke billowing out the exhaust and the drop in power under full throttle. 33psi, it was at about 35 mph... Head gaskets I assume. Second was the fuel milage. at 60, flat road, 40* exterior temps, empty... it was getting 4-5 mpg... I have never driven a 550 before. Is that a typical mpg for that truck?
I expected atleast 10mpg. Even downhill with no throttle it was reading 14 max.
Thanks. If I missed something with my search for this let me know.
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Old 12-12-2011, 03:30 PM
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White smoke- what did it smell like, fuel, or coolant.

Fuel could mean a stick injector, coolant could mean failed EGR cooler. These two could also give you a lack of power, so will a stuck open EGR valve.
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Old 12-12-2011, 03:31 PM
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Found what I was looking for. Feel free to respond. Now I cant find the delete button
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Old 12-12-2011, 04:13 PM
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With it running I walked around back and it had that sweet coolant smell.
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Old 12-12-2011, 04:55 PM
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Quote:
Originally Posted by ddb maine View Post
With it running I walked around back and it had that sweet coolant smell.
That sounds like the EGR cooler has failed.
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Old 12-12-2011, 05:29 PM
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33psi. Good lord
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