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

running funny

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Old 01-17-2006, 09:14 PM
  #1  
Apoc
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Default running funny

hi my car seems to be running really rough, when i try to accelerate if feels like my car wants to stall and when i give it gas it feels like i have 70 less horse power. Then when it runs fine i can be decelerating and it will get all rough at 0 mph and idle. When i gas it i feel a deep shake and notice the difference between when it is running right it sounds more raw and when its messin up it has a deep shake and loud rumble im clueless but its horrible to drive it this way.
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Old 01-17-2006, 09:18 PM
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sprostang
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Default RE: running funny

Sounds like a fuel problem. Have you changed the fuel filter? Are your injectors clean?
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Old 01-17-2006, 09:26 PM
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Dan04COBRA
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Default RE: running funny

What year is your car? How long as it been since your last tune-up? Always start with the simple & obvious things.
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Old 01-17-2006, 09:40 PM
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Apoc
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Default RE: running funny

my car is a 96 gt and i dont know last time it has had a tune up just bought it, but i believe that it may tied in with the fuel filter and maybe some back spark plugs. I hope it isnt my fuel injectors cause those can get quite expensive ...
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Old 01-17-2006, 09:49 PM
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Dan04COBRA
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Default RE: running funny

Don't even worry about your fuel injectors yet.

Do a basic tune up, plugs & such along with your fuel filter.
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Old 01-17-2006, 10:06 PM
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David_K
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Default RE: running funny

sounds like your running lean
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Old 01-17-2006, 10:11 PM
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rbstang
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Default RE: running funny

ORIGINAL: Apoc

hi my car seems to be running really rough, when i try to accelerate if feels like my car wants to stall and when i give it gas it feels like i have 70 less horse power. Then when it runs fine i can be decelerating and it will get all rough at 0 mph and idle. When i gas it i feel a deep shake and notice the difference between when it is running right it sounds more raw and when its messin up it has a deep shake and loud rumble im clueless but its horrible to drive it this way.
sounds like its missing. do a tune up like dan said plugs, wires, fuel filter.
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