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Old 11-13-2013, 10:40 AM   #1
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Strange Vibration?

Hi everyone, I have a 2004 mustang gt and I have a strange vibrating issue. However, my RPMs are not fluctuating and it only happens when I am in drive with my foot on the brake or when I'm barely rolling. I only have 90k on the car and it is extremely well taken care of. Does anyone have any idea what this could be? Is it possibly a tranny issue or driveshaft, perhaps? Thanks in advance!
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Old 11-13-2013, 11:08 AM   #2
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It only happens when braking? Do you feel it in the brake pedal or steering wheel?
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Old 11-13-2013, 11:10 AM   #3
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It happens when I'm in drive with my foot in the brake, or when I'm completely stopped or barely rolling. It's strange and sort of hard to explain. I was just fishing for a common problem lol
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Old 11-13-2013, 11:16 AM   #4
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Quote:
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It only happens when braking? Do you feel it in the brake pedal or steering wheel?
And no, I don't feel it in wither the pedal nor the steering wheel
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Old 11-13-2013, 01:28 PM   #5
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And no, I don't feel it in wither the pedal nor the steering wheel
So where do u feel the vibration?
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Old 11-13-2013, 03:16 PM   #6
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Throughout the whole car, it feels like it's trying to move forward, or like a rough misfire, yet it isn't a misfire
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Old 11-13-2013, 03:40 PM   #7
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[QUOTE="Nog51;1857165"]Throughout the whole car, it feels like it's trying to move forward, or like a rough misfire, yet it isn't a misfire[/QUOTE
This may seem like a dumb question but how are your tires? Wear? Flat spots?Wheel balance?do u have directional tires. If u have directionals are they on the correct side of the car? Don't take any of what I just asked as an insult. It happens. I took my car to Discount tire one time and the put my directionals on backwards. As soon as I got on the street I could tell that they f'd it up. But that caused a vibration that I could feel on the steering wheel.
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Old 11-13-2013, 03:58 PM   #8
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Lol not necessarily a dumb question. But no, my wheels and tires are fairly new and the tires have great tread and were balanced perfectly. I don't think it would be them anyway because while I'm holding the brakes and not moving (still in drive) it'll do it

---------- Post added at 04:58 PM ---------- Previous post was at 04:58 PM ----------

Lol not necessarily a dumb question. But no, my wheels and tires are fairly new and the tires have great tread and were balanced perfectly. I don't think it would be them anyway because while I'm holding the brakes and not moving (still in drive) it'll do it!
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Old 11-13-2013, 04:01 PM   #9
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Check your rotors, brakes, rims

---------- Post added at 03:01 PM ---------- Previous post was at 03:00 PM ----------

Hmm maybe u joints

---------- Post added at 03:01 PM ---------- Previous post was at 03:01 PM ----------

Check motor and tranny mounts
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Old 11-13-2013, 04:09 PM   #10
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Check your rotors, brakes, rims ---------- Post added at 03:01 PM ---------- Previous post was at 03:00 PM ---------- Hmm maybe u joints ---------- Post added at 03:01 PM ---------- Previous post was at 03:01 PM ---------- Check motor and tranny mounts
Checked every component of my brakes and cleaned them all, surely isn't that. No clue how to check the motor or tranny mounts. Guess I'll try that next
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Old 11-13-2013, 04:20 PM   #11
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Find a graph online
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Old 11-17-2013, 09:47 PM   #12
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UPDATE: It ended up being a motor mount, thanks for all the help guys! I'm having if down this Tuesday !
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Old 11-18-2013, 07:08 AM   #13
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Old 11-18-2013, 07:53 AM   #14
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Don't replace just 1 mount, do them all including the trans mount. If you have a decent set of ratchets and a good jack you can do it in an hour in your driveway.
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