max ride 41

iTrader: (4)

so, i replaced the suspension about 7-8 years ago and i think it's time. nilesh ( djfrestyl ) and i did everything front to back. when i accelerate from stop i get this clunking noise if the roads wet or i'm on that painted line at light.

i think the front spring isolaters have come off or partially off which i know can cause noise. and, i did'nt replace my rear shock plates or mounting plates which i know are bad. will anything else cause the car to do this from accelerating from a stop? if i step on it only it does this, normal acceration does'nt do it. on sharp turns i get this clunking noise sometimes as well. it's an auto 95

CorollaULEV

Nup. Wheel hop is due to engine mounts and not so much the suspension. The mounts allow the engine to rotate/rock back and forth slightly when accelerating versus decelerating.

Hard acceleration or slippery sufaces, you accelerate, engine rotates back, tire starts to loose traction slightly and the engine mounts sort of slingshot the engine forward. Once stress is released from engine mount, tires catch traction for a split second, engine rotates back again, tires loose traction, engine mounts slingshot engine forward, tire catches traction for a moment, etc.

Essentially, you're loading the engine mounts and then the mounts are releasing all of the stored energy, loading unloading loading unloading, etc. The tires catch, slip, catch, slip, catch, clip in response.

Some vehicles are just inherently prone to wheel hop worse than others. Typically the first think you start thinking is worn engine mounts IF this is something that has gotten worse recently.

Late,

Trav

Roachjuice

My experience with wheel hop. Lack of power to actually spin the tire. But enough to violently make it hop. Not good on axles. At all.

The Wizard

iTrader: (43)

Motor mounts are the first thing I'd look at.

max ride 41

iTrader: (4)

motor mounts are new, trans mount needs replacing. i've been hearing this on sharp turns and in the rear as well. suspension is 8 years old and does clunk in rear a bit. can the motor mount bolts loosen up after first installing? do they need to be re-tightened a little?? i know they're load bearing so the torque probably loosens them up a bit.

The Wizard

iTrader: (43)

Well, if your mounts are new, the next thing to look at are the suspension bushings. If they are original, they definitely need replacing.

max ride 41

iTrader: (4)

bushings?? what do you mean exactly?? i replaced almost everything up front from tie rods to sway bar end links in the last 2 years. my mechanic, ( i use that term loosely ) checked everything and says everythings in 1 piece. i disagree and have no jack or place to get underneath and check. i think the shocks all need replacement, and i'm doing that this spring. might do new springs as well.

dwapenyi

iTrader: (3)

You can install rock hard motor mounts to eliminate wheel hop, but with that setup you will also feel all motor vibration in the cabin, well, with automatic trannies. It's a tradeoff.

CMax03

iTrader: (3)

It's combination of things...If your LCA component are good then we've got your fwd and aft engine mounts that need to be upgraded (3M window weld, ES bushings, RedLion Racing mounts), then last but least some adjustable struts which can be adjusted to full (Illuminas, Koni, Coilovers)