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04 4.0 surging while driving

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Old 12-20-2009, 07:22 PM
MitchPeters MitchPeters is offline
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Question 04 4.0 surging while driving

P0456 EVAP Very small leak is the only code. It will surge at steady throttle intermitantly. More so when going up a slight hill. The tach goes up and down about 500rpm. 125k miles so I do need to change plugs and wires. It also seems to hesitate when getting back on the throttle after turning.
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Old 01-01-2010, 11:13 PM
MitchPeters MitchPeters is offline
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Any ideas?
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Old 01-02-2010, 12:39 AM
jamester_a jamester_a is offline
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rpm surge - Ford Explorer Ranger Enthusiasts "Serious Explorations"®

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