idosubaru Posted June 2, 2008 Share Posted June 2, 2008 1997 Impreza OBS AWD Automatic 120k. No vibrations at all normally. None while driving and none while braking. 3 times while driving I've had some vibration start while I was cruising. It's only happened at highway speeds - 60+ mph. It starts vibrating for no reason...cruising down the interstate at 70 mph. Applying the brakes makes it worse. Acclerating doesn't make it worse. First time I came to a stop, checked everything, and continued and there was no more braking when I got back on the road. Second and third time I just kept driving and it went away after a minute while cruising down the highway. But I did test it and it did get worse when I applied the brakes. It can't be rotors right? They can't magically vibrate badly and then go away for no reason can they? I have one new MWE axle. I'm suspecting the other axle? Link to comment Share on other sites More sharing options...
subaru360 Posted June 2, 2008 Share Posted June 2, 2008 I have one new MWE axle. I'm suspecting the other axle? Maybe. Next time it happens, try turning the wheel slightly and see if it goes away. If it does, could be a wheel bearing. Link to comment Share on other sites More sharing options...
audio_file Posted June 2, 2008 Share Posted June 2, 2008 I have one new MWE axle. I'm suspecting the other axle? my xt6 (awd) had a "rhythmic" vibration (on-off-on-off . . .) at speeds over 50 when i first drove it home. it had bad doj's on each axle though, so pretty easy diagnosis for my car . . . went away after i fixed the axles. from my experience with warped rotors, they really only gave me feedback thru the steering wheel and pedal when i applied the brakes, not while cruising down the freeway. . . you know more than i do about these things, the only wheel bearing test i know of is the ol' "lock the steering wheel, pull the handbrake, and try to wiggle (feel play in) each wheel" routine, do you think you'd feel it vibrate before you started hearing it grind though? chris Link to comment Share on other sites More sharing options...
keltik Posted June 2, 2008 Share Posted June 2, 2008 I have the same issue but in my case im almost certain its because i was too lazy to put the axle pins back through the inner DOJ's on the front. Will be sorting that out tomorrow night and hopefully that'l fix it for me. Point of post = i second the motion of inspecting inner DOJ's Link to comment Share on other sites More sharing options...
BobBrumby Posted June 2, 2008 Share Posted June 2, 2008 from my experience with warped rotors, they really only gave me feedback thru the steering wheel and pedal when i applied the brakes, not while cruising down the freeway. . ./quote] +1 for a bad doj, my brumby had an intermitent vibration problems right before it failed a bit more and it vibrated constantly, serves me right for rebuilding a joint with unknown condition, I know different gen but very similar drive lines. Link to comment Share on other sites More sharing options...
OB99W Posted June 2, 2008 Share Posted June 2, 2008 In my experience, intermittent vibrations tend to be caused by things that are loose/worn, while those that occur more consistently are typically due to imbalance/warpage. (To head off tales of the opposite having happened, please note the words "tend" and "typically" -- that means I recognize this isn't always the case. ) Link to comment Share on other sites More sharing options...
Rooster2 Posted June 2, 2008 Share Posted June 2, 2008 I think it is one of these, a bad tire, or bad tie rod, or ball joint. Suggest putting the car up on a lift to see if there is any "play" in the front suspension, also when up in the air, check front tires for any problems. Link to comment Share on other sites More sharing options...
idosubaru Posted June 2, 2008 Author Share Posted June 2, 2008 I think it is one of these, a bad tire, or bad tie rod, or ball joint. could any of those cause vibration for only 1 minute and then drive perfectly fine for hours on end? Link to comment Share on other sites More sharing options...
triiifashions Posted June 2, 2008 Share Posted June 2, 2008 I have the same issue but in my case im almost certain its because i was too lazy to put the axle pins back through the inner DOJ's on the front. Will be sorting that out tomorrow night and hopefully that'l fix it for me. Point of post = i second the motion of inspecting inner DOJ's what the hell is a doj??!! sry Link to comment Share on other sites More sharing options...
triiifashions Posted June 2, 2008 Share Posted June 2, 2008 could any of those cause vibration for only 1 minute and then drive perfectly fine for hours on end? i have had this before and my problem was mud on the inside of the rims dont know if this is an issue for you but just somthin to look at Link to comment Share on other sites More sharing options...
Gloyale Posted June 2, 2008 Share Posted June 2, 2008 Have yuo been through any mud lately??? I've had mud stuck on the inner portion of the rim cause odd vibrations. Clean the wheels good and gone. Link to comment Share on other sites More sharing options...
OB99W Posted June 2, 2008 Share Posted June 2, 2008 what the hell is a doj??!!A DOJ is a Double Offset Joint. Link to comment Share on other sites More sharing options...
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