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

car runs like crap after intake install

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Old 07-28-2006, 07:37 PM
  #11  
lizzyfan
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Default RE: car runs like crap after intake install


ORIGINAL: wildazme

i had my plastic intake manifold replaced with the upgraded manifold and now my car is running funny. the car seems to have a slight miss or something under hard throttle. you can hear a gurgling type sound from the exhaust when getting on the gas and also the car feels as if its loosing some power. you can feel a hesitation. the work that was done on the car was the manifold being replaced and also my spark plugs were changed to motorcraft platinums. any ideas what can be wrong?
You have a 98GT, so I wonder if they used a PI intake to NPI heads????
How reputable is this SHOP????
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Old 07-28-2006, 11:56 PM
  #12  
wildazme
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Default RE: car runs like crap after intake install

i was the one that bought the intake manifold so i got the non pi intake. I disconnected the battery and let everything erase from the pcm then hooked it back up and took it for a nice drive and now the car seems to be running fine. i think i just had to let the car learn the characteristics of the new intake.
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