Rough Idle
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Senior User
Joined: Jun 2004
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From: Deep in the heart of TX
Rough Idle
Can someone give me some common causes for a rough idle on my 1999 F150 5.4? I recently changed the spark plugs and thought about changing the fuel filter.
Lead Driver
Joined: Sep 2006
Posts: 7,907
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Ignition issues.
To much fuel.
To little fuel.
Fuel regulator and it's operation.
Air leak.
Sticking IAC controller.
Possible Mas Air contamination.
Intake Air temperature sensor out of spec.
A code indicating a trouble.
Good luck.
To much fuel.
To little fuel.
Fuel regulator and it's operation.
Air leak.
Sticking IAC controller.
Possible Mas Air contamination.
Intake Air temperature sensor out of spec.
A code indicating a trouble.
Good luck.
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aah924
1987 - 1996 F150 & Larger F-Series Trucks
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Dec 28, 2011 01:52 AM
