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Old 12-29-2013, 07:41 PM   #1
carmen.cal.
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Default car vibrating?

I have a 2011 wrx sedan with 46000 miles on it, we purchased the car used a few months ago and seems it was taken very good care of, in the past week or so the car is having this intermittent kind of bouncing grabbing feeling. when I step on brakes it doesn't change, when I accelerate it doesn't change,it doesn't happen all the time, and when it happens the car feels fine then all of a sudden it starts to happen at around 40 mph, nothing really felt in the steering wheel it is kind of the whole car vibrating up and down, I just changed the rear diff fluid and the trans fluid today and that didn't do anything,the car has brand new brakes and tires from the dealer, it doesn't seem like a balance problem, all the lead weights are still on, and like I said it doesn't happen all the time.i checked u joints and they seem ok . any ideas ?could it be a drivetrain problem
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Last edited by carmen.cal.; 12-29-2013 at 08:45 PM.
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Old 12-29-2013, 07:59 PM   #2
alexandern05
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agile tuned 389hp 342ftlb

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Possibly the driveshaft or a bad axle if its not felt in the steering wheel then the problem is in the rear of the car check the driveshaft and axles and.the tires. Also how bad is the vibration?
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Old 12-29-2013, 08:20 PM   #3
carmen.cal.
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It's deffinately noticable when it happens it feels like your driving on a washboard , it's weird though because it's not in the suspension, and not in the tires because it stays constant even when accelerating, I think it lets up a it when I put in the clutch I will have to recheck that, but it doesn't seem like tires because it's not there then all of a sudden you can feel it starting to pulsate
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Old 12-29-2013, 08:26 PM   #4
carmen.cal.
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I checked the drive shaft , the u joints have no play in them, how much play should be in the rubber drive shaft carrier bearing? I can push it up quit a bit but it's not cracked or dry rotted.
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Old 12-29-2013, 08:33 PM   #5
alexandern05
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agile tuned 389hp 342ftlb

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The rubber on the shaft always can be moved a good bit maybe it's something with your trans.
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Old 12-29-2013, 08:42 PM   #6
carmen.cal.
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damn I hope not, it should be under warranty right? 5 years 50,000?
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Old 12-29-2013, 09:59 PM   #7
alexandern05
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agile tuned 389hp 342ftlb

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Honestly I'm not sure what the warrenty is for Subaru. But I would take it to a shop to be looked at. Its definetly worth spending the money for diag
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Old 12-30-2013, 08:45 AM   #8
Aaron'z 2.5RS
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Its winter here.. got any snow/ice on the inside of the wheels by chance?

I have to spray out my wheels about 1x a week
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Old 12-30-2013, 09:49 AM   #9
carmen.cal.
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no ice or snow when it was doing this it was 50 degrees out
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Old 01-05-2014, 11:36 AM   #10
carmen.cal.
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so I figured out what this vibration was coming from.it was the right rear caliper,it was stuck, I took the caliper off and tried to squeeze it back in with a c clamp ,it wouldn't go in, so I opened up the rubber seal and sprayed some blaster in there and let it sit for an hour and then tried it again, it freed up so I worked it in and out several times put it back together and no more vibration.hope this helps someone else out, and to the guys who tried to help thank you.
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