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egr and it moves freely but the truck still smokes out of the exhaust…

Customer Question
i cleaned the egr and...
i cleaned the egr and it moves freely but the truck still smokes out of the exhaust,,any ideas
Submitted: 8 years ago.Category: Ford
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Answered in 18 minutes by:
6/11/2010
Ford Mechanic: Chris (aka- Moose), Technician replied 8 years ago
Chris (aka- Moose)
Chris (aka- Moose), Technician
Category: Ford
Satisfied Customers: 53,396
Experience: 16 years experience
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Hello, I'm Chris.
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Are you getting a black or white smoke?

Does it smoke all the time or under certain circumstances?

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Customer reply replied 8 years ago
black smoke at idle and more as im on the gas
Ford Mechanic: Chris (aka- Moose), Technician replied 8 years ago
Black smoke is a sign of the EGR valve not moving, even though you attempted to clean it, it still most likely is not moving freely. Another source of black smoke is unburnt fuel from clogged and or weak fuel injectors not spraying the fuel well enough to get the fuel to fully ignite. You diagnose this concern using a scan tool and running a power balance test to see if one or more cylinders are not contributing 100%, indicating a bad injector on said cylinder(s).
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