Contour Enthusiasts Group Archives Forums Modifications Suspension Koni Struts - Worn out?

So I have been noticing a problem lately. I used to think it was the tires I put on the front, but my front end is bouncing more and more...

Can Koni struts go out on Roush springs? I bought them from a CEGer about 4 months ago. The rears were brand new but the front had about 2000 miles on them. The rears are just fine, no bobbing at all, but today I hit a bump I normally dont even feel and this time I could definately tell the front end bobbed. I still havent registered them with Koni, so I am doing that today just in case I really have 2 bad fronts...

There is no oil leaking, the struts are nice and clean...I am going to switch my tires around. The fronts have 2 Sumitomo 225/40/17 on them...these tires suck but they are cheap. The rears have Yokohama 225/40/17 ESV100's I wore the fronts out a long time ago... Tire pressure is 33 all around..

Any suggestions?

Doesn't really relate to your issue, but 33psi is pretty low for those tires...

Actually, thank you....I was wondering if my PSI was too low. If I increase it to...what 40? That wont make me bob as much since the pressure will keep the tires firm. Im going to set the rears to soft so it will be even...

People have many different opinons on tire pressure, but IMHO 36-40psi is a good range for performance tires depending on your weather and road conditions. I have had the best luck running a couple psi higher on my fronts than the rears on front-heavy cars like ours.