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engine runs rough

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Old Dec 1, 2008 | 07:41 PM
  #1  
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flynntyme
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engine runs rough

have a 1987 ford 250, starts up and idles fine, if i ride it slow and easy runs fine, but if i want to accelerate and or go faster, the engine runs "rough". it like it stuttering almost! didnt know if there were any suggestions! thanks for your time................wflynn2@student.fsc.edu
 
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Old Dec 1, 2008 | 07:55 PM
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sounds like it's either starving for fuel or a missfire... a pluged fuel filters or bad fuel pumps can cause what you describe(fuel starvation) as well as a bad plug, wire, or cap and rotor(miss fire).... its hard to describe the diference between the two... I'd know right away if I drove it...lol. is your truck fuel injected... can't remember when they changed over
 
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Old Dec 1, 2008 | 08:24 PM
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Which engine do you have in 87 the 460 was carbed and all else injected?
 
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Old Dec 1, 2008 | 09:43 PM
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Check for codes too. If you don't have a code reader, check the link..........

Ford Fuel Injection How To Run a Self-Test
 
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Old Dec 1, 2008 | 10:01 PM
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its a 5.8, last year of the carburetor, dont think its the 460, either the 351 or the 302
 
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Old Dec 1, 2008 | 10:14 PM
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So it's carbed? Then it has the holley carb?

The first thing to do is check the ignition, Had a tune up lately?
 
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Old Dec 1, 2008 | 10:22 PM
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can you give us some more info like does it actup more going up a hill? does it feel like its running out of gas?
 
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Old Dec 1, 2008 | 10:26 PM
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most of the time when people have complaints like yours it's an ignition problem... a fuel problem like a bad fuel pump or filter will more often feel like your running outa gas. Ignition problems give you a studering symptom or shaking...
 
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