4.6L (1996-2004 Modular) Mustang Technical discussions on 1996-2004 4.6 Liter Modular Motors (2V and 4V) within.

Rpms are surging ramdomly

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Old 02-03-2008, 12:02 PM
  #1  
jimfash
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Default Rpms are surging ramdomly

So it just started yesterday. When I am driving, i will me cruising along and suddenly the rpms will surge from 1300ish to close to 3000 for about 3 secoinds then drop back down.... any ideas? It is a 96GT Auto with about 46000 miles. THANKS!!!
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Old 02-03-2008, 12:04 PM
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defconfire
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Default RE: Rpms are surging ramdomly

Sounds like your over drive turned off for a second, were you giving it any gas? does it happen often or was it a 1 time thing?
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Old 02-03-2008, 12:23 PM
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jimfash
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Default RE: Rpms are surging ramdomly

just holdin steady at like 40mph, revs to 3000. keeps happening, about every few minutes.
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