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Old Sep 25, 2013 | 11:12 PM
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lemasters f100
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Weird noise

Ok my 1978 f250 with a 400 in it has started making a weird stuffer or poping noise when driving 25mph+ is this just bad gas? Maybe clogged jet? Bad filters?
 
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Old Sep 25, 2013 | 11:13 PM
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It has the stock motorcraft carburetor
 
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Old Sep 26, 2013 | 08:21 AM
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Loose spark plug wire.
 
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Old Sep 26, 2013 | 10:55 AM
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I checked that. Maybe a timing issue?
 
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Old Sep 26, 2013 | 11:53 PM
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Originally Posted by lemasters f100
Ok my 1978 f250 with a 400 in it has started making a weird stuffer or poping noise when driving 25mph+ is this just bad gas? Maybe clogged jet? Bad filters?
Give us a little more information, standard or automatic, what rpm does it do it at, can you feel it heasitating, does it cut out??
 
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Old Sep 27, 2013 | 01:16 AM
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Originally Posted by Boodrow379
Give us a little more information, standard or automatic, what rpm does it do it at, can you feel it heasitating, does it cut out??
Auto, not sure rpm don't have a gauge probably around 3-4000, sometimes it does hesitate when I'm pushing the gas pedal
 
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Old Sep 27, 2013 | 07:31 AM
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Does it do that only when there is a load on it in gear? or will it do it when sitting in neutral/parked, with the engine revved up?
 
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Old Sep 27, 2013 | 08:35 AM
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Originally Posted by cigarxtc
Does it do that only when there is a load on it in gear? or will it do it when sitting in neutral/parked, with the engine revved up?
More noticeable when driving. Can barely hear it at idle
 
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Old Sep 27, 2013 | 09:21 AM
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I tighter the battery terminals thi mornin because it would not start and then when I started driving the problem suddenly stopped.
 
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