1jztts

I have a 91 1jz soarer with 110k kms (90k? miles).
Some days the cars ride quality is really really harsh. In the city i can feel every little pebble on the road and the tire roar/road noise is unbearable. Also the car tends to pull to the right when the road is uneven. But on some days, completely random, the car rides silky smooth, almost as smooth as my girlfriends new 745 bmw. Little road noise/tire roarer, the suspension actually feels like it has damping going over rough sections of the the road. Sometimes i get a silky smooth ride for a day then the next morning it goes to **** again.
Also when the ride is smooth I get great gas mileage 22+ mpg, when it gets rough it all goes to ****. 16mpg if im lucky. I didn't think these two problems were related ( maybe its not?) until I started checking my gas gauge ( digital one on the soarer) constantly when the ride is smooth I would drive from work and back about 20kms and only use 2-3liters, when its rough its like 4-5 liters ( ****ing brutal price for 93 octane is $5/gal here)

I think it might be the suspension bushing coupled with bad engine mounts?
I bought the car 2 years ago and had this issue since day one, not as bad when i got it but its getting worse and worse.


any ideas?

1jztts

PS:
the ride doesn't seem to change while I am driving, its only after I park it for a while and drive again
Example, terrible ride driving to work in the morning, silk smooth coming home at night. This doesnt ALWAYS happen, like I said it seems completely random ( to me anyways)

Nova

iTrader: (21)

i think there is something being left out here. ride quality will vary depending on your rim size tire size, suspension set up and road quality. nothing is ever completely random

do you take different roads going to and from work? and aftermarket parts on your car?
if it has been happening since day one maybe something is to blame such as bad struts/shocks

maceugood

iTrader: (4)

what he said, need more info