03 GT making bad knocking noise??? - Mustang Evolution

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Old 02-19-2014, 05:55 PM   #1
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03 GT making bad knocking noise???

I have a 2003 GT (5 speed) that is making a bad knocking noise when i go over bumps and when i start out in first gear. Its doesn't do it every time i go over a bump and it also doesn't do it every time i start out in first. It probably happens about 75% of the time. Does anyone know what could be causing this?

Here is a video when it makes the sound starting out in first gear.
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Old 02-19-2014, 10:39 PM   #2
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It's hard to make out from the video which noise you are talking about, but to me it doesn't sound like a "knock". It sounds like something loose under the car. Are you sure it's coming from the engine?
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Old 02-19-2014, 10:53 PM   #3
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Its only at the very beginning of the video and no i dont think its something with the engine i think its something with the suspension
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Old 02-20-2014, 01:04 PM   #4
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Sorry, I can't really tell. Only thing I can do is advise getting under there and shaking things around, it sounds like something is loose. To me it sounds like something with the exhaust, like maybe hitting the underbody and that's why it only happens over bumps or in first gear (first gear is when your exhaust pipes shake the most.) It sounds like you have aftermarket exhaust, maybe it wasn't installed exactly right.
Hopefully other people have some different ideas.
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Old 02-20-2014, 01:48 PM   #5
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Ok thanks a lot man
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Old 02-20-2014, 01:54 PM   #6
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Is it your rear control arm bushings?
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Old 02-20-2014, 04:05 PM   #7
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To me it sounds like its coming more from the front of the car but idk i could be wrong.. It can be kind of hard to tell sometimes
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