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Old 12-27-2014, 12:09 AM   #1
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Question Bogging and fluttering

Help!!! I have changed my fuel pump, fuel filter, ran injector cleaner and checked coil packs. Still bogging and missing at take off and accelerating after letting off the gas for a bit. It feels like it losses pressure for a bit then kicks back in! It drives fine on the highway though. I don't know what else to do! Oh and one more thing, NO CHECK ENGINE light, so running a scan is worthless!
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Old 12-27-2014, 12:15 AM   #2
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It's an 06 GT BTW
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Old 12-27-2014, 12:16 AM   #3
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Possibly something throttle body related like iac, or maybe something egr related

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Old 12-27-2014, 01:43 AM   #4
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Cool I'll try that thanks
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Old 12-27-2014, 02:01 AM   #5
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And maybe even clean out the throttle body as a first step and see what that does

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Old 12-27-2014, 03:02 PM   #6
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Bogging and fluttering

You might get more help in the 2005-2010 GT section. This section is for 5.0 Coyote engines.
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Old 12-27-2014, 11:55 PM   #7
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I cleaned the throttle out today with B12. It got a little better but still some resistance and flutter. I'm starting to think maybe the catalytic converter?
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Old 12-28-2014, 12:06 AM   #8
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Umm are you tuned? Did you datalog and see what's going on?

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Old 12-28-2014, 12:50 AM   #9
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No I didn't do that. There is no check engine light and it's been acting this way for days. I figure it would have triggered something already.
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Old 12-28-2014, 01:25 PM   #10
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Check TPS


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Old 12-29-2014, 09:01 AM   #11
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Quote:
Originally Posted by mpauda View Post
No I didn't do that. There is no check engine light and it's been acting this way for days. I figure it would have triggered something already.

Just because theres no CEL doesnt mean nothing is wrong, a datalog is almost always useful when things arent behaving right.
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