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bucking on accerlation

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Old Dec 23, 2010 | 10:24 AM
  #1  
leopards34's Avatar
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Default bucking on accerlation

I am having some problems with my 2002 V8 4.6L. 96k miles.
When I am accelerating in between 45-55 mph I get like a putting or bucking of the truck. It feels like it is being choked. If I completely accelerate through this range to get to a higher speed it doesn't happen, only when I maintain this speed range. Almost, feels like it wants to stall out. I have put in injector cleaners to no avail. I am not getting a service engine light on. I also hooked it up and had no diagnostic code readings.
ANY IDEAS?
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Old Dec 26, 2010 | 09:10 AM
  #2  
Good old Bill's Avatar
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From: Henderson, NV.
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Other members have had similar concerns, it seems the PCM is slow to thro the codes for engine missfiring, when it identifies which cylinder is the culprit, it will let you know. Alot of the time its the back cylinders that cause the problem, moisture or someting, it should talk to you.
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Old Jan 30, 2011 | 05:03 PM
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brooks1176's Avatar
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From: Framingham Massachusetts
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start with plugs, wires, and coils
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