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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.

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Old 10-14-2014, 06:10 PM   #1
drama63
 
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Vehicle: 1994 Ford Mustang Gt
Location: Georgia
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Default Irritating surging/loss of power

So my car is a 94 gt with newly replaced fuel pump and filter, fpr, ignition coil, distributor, plugs and wires. I have checked my tps and the voltage sits at .96. I am using a digital multimeter so i am unable to tell if the transition is smooth but i could not seem to find any "dead spots"

So heres the issue: Once the car warms up it begins to studder/hesitate (whatever you choose to call it) whenever i am cruising and just maintaining my speed with very light throttle(maybe 10%) but once i give it a little more gas it comes to life. it is not throwing any codes whatsoever. I have searched and searched. I would just like to see if any one else has any suggestions. ANy help is much appreciated
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Old 10-14-2014, 08:04 PM   #2
mjr46
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check for vac leaks, make sure the maf is clean, all wires on tight at plugs and at cap, at dusk lightly mist wires with a spray bottle check for any arcing, if present replace wires, make sure plugs are good and no cracks for arcing to occur in the porcelien
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Old 10-14-2014, 08:15 PM   #3
Genxer
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EGR valve?
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Old 10-14-2014, 08:26 PM   #4
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EGR valve?
only if it's partially stuck open or getting vac when it shouldn't, but then again a koer should pick that up as pinle position sensor has learned open and closed voltage positions in the KAM
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Old Yesterday, 07:05 PM   #5
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is it possible that oil blowback into the intake could cause this? or possibly the pcv being bad or clogged?
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Old Yesterday, 07:05 PM
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