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Back firing issue

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Old Jun 11, 2018 | 07:52 PM
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Danielle Hostetler's Avatar
Danielle Hostetler
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Back firing issue
04 f150 5.4.changed coil packs, plugs, rocker arm, sensors...you name it. Won't stay running and when you push in on the gas it sounds like a machine gun. Help
 
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Old Jun 13, 2018 | 12:01 AM
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ford390gashog
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Dropped valve, burnt valves if it's that severe.
 
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Old Jun 13, 2018 | 12:03 AM
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Skip1970's Avatar
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From: Semper Fi tell I die!
i like machine guns. m249 or m60?
 
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