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1997 - 2003 F-150

Truck shake and sputters

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  #1  
Old 03-12-2018, 03:17 AM
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Angry Truck shake and sputters

My truck sputters when driving when I hit 45mph it shift into last gear and starts shaking the more I press on the pedal the more it shakes but when I press hard it down shifts and goes away til it shift back to last gear. I've changed spark plugs and wires/ coil pack.
 
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  #2  
Old 03-12-2018, 10:29 AM
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Year and engine?

Brands of spark plugs/wires/coil pack?
 
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  #3  
Old 03-12-2018, 02:32 PM
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Classic example of a faulty coil.
Good luck.
 
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  #4  
Old 03-12-2018, 03:48 PM
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99 5.4L spark plugs are nkg and coil packs not sure.
 
Attached Thumbnails Truck shake and sputters-screenshot_20180312-154706.png  
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  #5  
Old 03-12-2018, 07:22 PM
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Should always use Motorcraft coils. Your truck acts like it has a bad coil to me. Some off brand coils can be bad out of the box.
 
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  #6  
Old 03-12-2018, 07:43 PM
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Yes, use MC plugs and coils.
 
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  #7  
Old 03-13-2018, 12:10 AM
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Motorcraft plugs and Motorcraft, Denso, or Delphi coils.

40 bucks for a set of coils? What do you expect? They are junk.
 
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  #8  
Old 03-13-2018, 01:36 AM
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yep, junk coils
 
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