5.0L (1979-1995) Mustang Technical discussions on 5.0 Liter Mustangs within. This does not include the 5.0 from the 2011 Mustang GT. That information is in the 2005-1011 section.

huh?

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Old 12-12-2006, 07:38 PM
  #1  
mattdel
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Default huh?

ok so i've noticed a small little quirk, not really bothering me, or affecting performance, but i'm just wondering....

when i shift, from any gear, to any gear, as soon as i push the clutch in, the RPMs jump about 200 or so, then gradually drop back down, right before clutch re-engagement. any ideas?
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Old 12-12-2006, 07:41 PM
  #2  
dman302
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Default RE: huh?

Look for broken vac lines under the hood...a vac leak will cause all kinds of idle and hanging issues with the coveted 5.0's...take some time they can be tough to find....especially the little hard plastic lines.
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Old 12-12-2006, 07:41 PM
  #3  
P Zero
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Default RE: huh?

Youre lightening the load on the motor, less drag rpms will climb a little before the computer corrects itself. [:@] EFI[:@].
-P.
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Old 12-12-2006, 07:49 PM
  #4  
94gtcoupe
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Default RE: huh?

all the 5.0's (manuals) i've been in or drove do that too i just assumed it was normal
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