problem: when driving at 65 mph and above, the steering wheel will start to shimmy and shake. if i let off the gas, and let it decelerate under 65 and then get on the gas again it will sometimes go away but it shakes most of the time.
what i've done so far: replaced front and rear motor mounts (they were indeed bad, but it still shakes when driving 65 and up AND it also makes the car shake like crazy at idle). i've checked the steering linkages and the rack mounts. all are good. I did however spot that the outer boots on the CV axles are broken. i haven't had any tell tale clicking when turning sounds yet. The tires were balanced a few months ago. i should probably rotate the tires and see if it follows.
milk shakes: i checked those, except control arm. i will get on that! thanks!
taco: i've checked the tires a few times and they all look normal. maybe a little bit of wear on the inner edges. the steering wheel is slightly to the left so i'm planning an alignment trip soon. i had them balanced a few months ago. maybe a weight came off? they didn't mention to me if i had a bent rim.
i will start with a tire rotation since it's due anyways. i'll keep you all posted.
i rotated the tires today and the steering wheel still shakes. all the tires have normal, even wear. so now i've isolated the vibration being in the front end somewhere. here's a questions: can worn outer CV axle joints cause this vibration? as i mentioned before i fount that boots were torn open and grease is probably gone (not sure how long it's been like that). It definitely needs an alignment too. hopefully i can get it done tomorrow. What do you guys think? like i said it only does it when it gets around 65 miles an hour. sometimes when i let off the gas and then get back on it it will go away and then come back again. weird.
ps: checked the front end again quickly. everything feels really tight.
A bad CV joint would be noticeable at practically all speeds, or especially when turning.
If you have ruled out any of the wheel related issues (bent rim, lost wheel weight, etc) it may be warped rotors. Does the vibration get worse if you apply the brakes at 65 mph rather than just lifting off the gas?
rob:the rotors are still straight. i get no pulsations when braking at low or high speed. when the shaking starts around 60-65 mph, if i let off the gas and let it slow down under 60 it goes away.
also, some times if i'm driving over 60 and there's no vibration. if i hit a bump the shaking will start.
Last edited by GTcelica22; 05-26-2011 at 12:28 AM.
In that case, we've practically exhausted all the possibilities I can think of. I have no more suggestions without being able to experience it myself and take a look at it. sorry.
i bought a pass side motor mount off rock auto recently. i put it in on friday and it shook even worse than before! i had to put the old mount in and it's back to it's previous, more manageable state. does anyone know if these mounts are liquid filled from the factory?
newbie: i took it to the local STS tire and auto. paid $70 to have it done. i like how they give you the print out of the measurements before and after it's done. all 4 wheels were way off, two were in the red.
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