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Cutting out problem at high speeds

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Old Jun 30, 2007 | 12:13 AM
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79f100six
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Cutting out problem at high speeds

Usually my truck is a in town truck so i dont go over 45 usually, but sometime i need to go faster about 50 or over i can hear the truck cutting out. I did check the spark plugs a few days ago and the wear on them is normal according the picture in the haynes manual. the truck wont backfire or nothing; just will cut out. I dont know how old they are nor the wires. Could it be ignition problems or even something even bigger.
 
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Old Jun 30, 2007 | 06:47 AM
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Does it stall? Or just stumble and miss? If it is just a stumble and miss, start with the plugs and wires, and maybe the cap and rotor.
If it dies and you have to restart, change your fuel filter.
 
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Old Jun 30, 2007 | 09:35 AM
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it does not stall, just stumbles. i was thinking about changing plugs, wires, rotor, and cap and i might go ahead and do it.
 
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Old Jun 30, 2007 | 09:57 AM
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Originally Posted by 79f100six
it does not stall, just stumbles. i was thinking about changing plugs, wires, rotor, and cap and i might go ahead and do it.

Good idea!
 
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Old Jun 30, 2007 | 10:34 AM
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The ignition box may be overheating at the higher rpm, try changing it out with a spare. If no spare ask around your local chapter.
 
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Old Jun 30, 2007 | 10:51 AM
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Change the fuel filter.
 
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