Ford F-250 & Ford F-350 The heavier duty full sized trucks from Ford, offering bigger, more powerful engines and drivetrains for the abuse they may go through in the workplace.

Surging

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  #1  
Old 11-03-2015, 01:22 PM
eric hoffmeyer's Avatar
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Location: Bowling Green KY
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Default Surging

1999 F350 with the IH 7.3 and a 5 speed 2WD.

At about 1450 RPM I can feel the engine surging slightly. This occurs in third gear at about 35MPH (or there abouts)

On either side of that RPM the truck runs fine, plenty of power and no issues.

Is something bad about to happen? (I'm a retired Army helo pilot...something bad was always about to happen! LOL)
 
  #2  
Old 11-08-2015, 10:36 AM
hanky's Avatar
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It could be one of those things where the EGR system is functioning as designed and it is just more noticed at that speed.
 
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