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7.3 idle surge rpm
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  1. 94-98 7.3 Motor Problems
    got a 97 f250 7.3 with around 226k runs great, good power tranny shifts fine no leaks at all but at idle im getting a weird surge it seems, truck fires right up sits for a minute or 2 and then the rpms kinda jump up a tad and truck seems to hum or vibrate when doing it. once you start driving it...
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