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

Still have the problem 😔

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Old 02-22-2015, 08:16 AM
  #1  
Mustang-s
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Default Still have the problem 😔

Hi all

I just bought a mustang 2001 and I have a hesitation / stutter during low acceleration
I just changed spark plug, air filter and fuel filter. And still have the same problem 😔
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Old 02-22-2015, 08:34 AM
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tadpole1969
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do you have a check engine light on or? its either sucking too much air, not getting enough fuel, or misfiring

Last edited by tadpole1969; 02-22-2015 at 08:36 AM.
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Old 02-22-2015, 10:12 AM
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Originally Posted by tadpole1969
do you have a check engine light on or? its either sucking too much air, not getting enough fuel, or misfiring
Hi,
I don't have a check engine light.
It seems like not getting enough fuel

How can i know sucking too much air or misfiring?
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Old 02-22-2015, 10:24 AM
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Camster
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You might have bad spark plug coil or two.A miss wouldn't be evident at speed and higher rpms.
Test fuel pressure at the rail.
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Old 02-23-2015, 01:00 PM
  #5  
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The problem was solved finally

It was the EGR valve sensor
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