i have a 04 s2000 and i just noticed as i accelerate on the highway going about 70mph-80mph it shakes really bad, its not balance on tires, i know for sure i can tell when balance is off or bad, this has to be something else.

 

i had similar experiences when my car was out alignment. does the shaking continue when you cruise at a steady 80 mph?

 

worn tires
bad alignment
wheel balance
bad axels
axel nut

 

is your car lowered? Worn CV joints possibility

 

cv joints ftl

 

yea as u drive steady 80mph it keeps on doing that, slow back down and its all good.

 

yeah the car is lowered, -1.5" springs, i put spacers on the axles but only about 3 months later when i found out u need them there.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by ruracer18 &raquo;</TD></TR><TR><TD CLASS="quote">yeah the car is lowered, -1.5" springs, i put spacers on the axles but only about 3 months later when i found out u need them there. </TD></TR></TABLE>

you dont "NEED" but are recommended.. i drove mine over 1.5 years pretty low and didnt have any of the "shakes" from the early short axel

 

im calling worn CV joint cups. Swap those from left to right and you should be golden. If not, torque down your rear axle nut to 215 ft lbs (i think) although, I do find tis weird since you have an AP2. This is usually an AP1 thing

 

go to honda and have them check your alignment. they won't charge anything if alignment is up to par, but if any of the wheels is off they will tell you and you will have to get it done right there.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by I BSeRiouS I &raquo;</TD></TR><TR><TD CLASS="quote">im calling worn CV joint cups. Swap those from left to right and you should be golden. If not, torque down your rear axle nut to 215 ft lbs (i think) although, I do find tis weird since you have an AP2. This is usually an AP1 thing</TD></TR></TABLE>

i think its the cv joibts too. does it only happen when your on the throttle? is it only at higher speeds?

 

keeps on doing it if gas pressed or not just driving 70 or above, i had the car for a year now, drove around lowered for about 6months, put the shaft spacers on about a month ago, im sure it started shaking as soon as i put the spacers on or sometime there. the shafts that stick out of differential move around a lil, is that bad.