I give up on the clunking
#31
i have a clunking as well, i'm already on coilovers and PO said he did supra control arms, but i think he only did upper cz the lowers look pretty meh. what's the best way to check the bushings without removing? i only have a clunk when the car is going slowly over small bumps and sways side to side a lot. i had a loud pop clunk in the rear which was a sway bar end link, so i'm gonna check those first, then sway bar bushings. i always start with the cheap stuff.
#32
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Join Date: Nov 2014
Location: Florida/Nebraska
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I can think of a few things that could clunk;
The steering rack bushings falling apart, but you'd probably have loose steering.
The driveshaft is 2 piece and adjustable, so it could be sliding when braking. However it's bolted onto the trans, diff and center support.
Try tightening the subframe bolts again, but back them out half a turn and torque them to spec with a torque wrench. Maybe even try to jack the subframe up to get the weight off and see if it's noticably loose.
The steering rack bushings falling apart, but you'd probably have loose steering.
The driveshaft is 2 piece and adjustable, so it could be sliding when braking. However it's bolted onto the trans, diff and center support.
Try tightening the subframe bolts again, but back them out half a turn and torque them to spec with a torque wrench. Maybe even try to jack the subframe up to get the weight off and see if it's noticably loose.
#33
Pole Position
iTrader: (2)
i have a clunking as well, i'm already on coilovers and PO said he did supra control arms, but i think he only did upper cz the lowers look pretty meh. what's the best way to check the bushings without removing? i only have a clunk when the car is going slowly over small bumps and sways side to side a lot. i had a loud pop clunk in the rear which was a sway bar end link, so i'm gonna check those first, then sway bar bushings. i always start with the cheap stuff.
#34
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Join Date: Nov 2015
Location: Florida
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Does it happen when rotation starts and get progressively faster as you gain speed? Or does it happen when you hit a bump or go into a turn? This should help determine if its a motion part or stationary part.
I would hook a go-pro up under there and try and recreate it, see if anything shows itself.
Shane
I would hook a go-pro up under there and try and recreate it, see if anything shows itself.
Shane
#35
Does it happen when rotation starts and get progressively faster as you gain speed? Or does it happen when you hit a bump or go into a turn? This should help determine if its a motion part or stationary part.
I would hook a go-pro up under there and try and recreate it, see if anything shows itself.
Shane
I would hook a go-pro up under there and try and recreate it, see if anything shows itself.
Shane
#36
Driver School Candidate
I had same problem, I jacked up my car from the rear end move the wheels and checked for gameplay.. ended up being the u-joint which is irreplaceable unless aftermarket front driveshaft.
#37
Lexus Champion
i'm gonna get an alignment next weekend, see if they notice anything, if not, i'll try tightening the sub frame bolts, anyone know the specs on those? i do have a lot of bump steer, when changing lanes over some rough roads my steering will move slightly to the opposite side that i'm turning. my steering rack bushings are brand new though, so i'm guessing it's LCA's.
#39
Lexus Champion
yea the rear on mine might be because of alignment because i changed the hub and half shaft on one side and never got it realigned. the front however might be a toe alignment issue since i changed the rack bushings and never got that realigned either. so we'll see how it handles after an alignment. the worst is when you're coming to a stop at a light and the road is caved in from trucks stopping on it, i have to hold the wheel really tight so my car doesn't steer into the other lane from the giant bumps in the road.
#40
i'm gonna get an alignment next weekend, see if they notice anything, if not, i'll try tightening the sub frame bolts, anyone know the specs on those? i do have a lot of bump steer, when changing lanes over some rough roads my steering will move slightly to the opposite side that i'm turning. my steering rack bushings are brand new though, so i'm guessing it's LCA's.
#41
Lead Lap
iTrader: (8)
From my experience if the alignment has been off the tires wear matches the bad alignment, so even with a fresh alignment the car will pull with the road like you guys are describing. Usually fresh tires and a new alignment will stop it from following an uneven road.
i'm gonna get an alignment next weekend, see if they notice anything, if not, i'll try tightening the sub frame bolts, anyone know the specs on those? i do have a lot of bump steer, when changing lanes over some rough roads my steering will move slightly to the opposite side that i'm turning. my steering rack bushings are brand new though, so i'm guessing it's LCA's.
#42
Lexus Champion
How old are your tires? How many miles were on them before you got the car aligned with the new parts?
From my experience if the alignment has been off the tires wear matches the bad alignment, so even with a fresh alignment the car will pull with the road like you guys are describing. Usually fresh tires and a new alignment will stop it from following an uneven road.
Torque specs are 94 ft lbs for the (4) 17 mm bolts and 148 ft lbs for the (6) 19mm bolts.
From my experience if the alignment has been off the tires wear matches the bad alignment, so even with a fresh alignment the car will pull with the road like you guys are describing. Usually fresh tires and a new alignment will stop it from following an uneven road.
Torque specs are 94 ft lbs for the (4) 17 mm bolts and 148 ft lbs for the (6) 19mm bolts.
#43
Lexus Champion
winter tires are on, going to get an alignment tomorrow morning. my tires were shot, one was completely bald, and another was wearing extremely weird. the tread was wearing in bumps every other cut in the tread, super weird, never seen that before, shows how bad my alignment was.
#44
winter tires are on, going to get an alignment tomorrow morning. my tires were shot, one was completely bald, and another was wearing extremely weird. the tread was wearing in bumps every other cut in the tread, super weird, never seen that before, shows how bad my alignment was.
#45
Lexus Champion
so tires are on, alignment is done, shop didn't see anything wrong with it and i tried inspecting myself, i had the car on stands and kept lifting the wheel up and down with a jack but didn't notice anything except one thing.
so i jack up the left wheel which puts pressure on the sway bar, slightly raising the right wheel, when i lower the left wheel the right wheel, as it comes down, jerks and pops, specifically the coil over.
now is that just the friction and torque from the sway bar or do i have a problem with the coilovers? they have over 40k miles on them that i know of. i need to get a better torque wrench and check the subframe bolts before i start buying any parts. if the subframe is fine and i still have clunking, my first purchase will be end links, because my rear links were making a horrible clunk before as well which i fixed. i'll update, this weekend, today i'm changing brake pads, got the rotors resurfaced and damn one of them was horrible because of the awful bumpy tire, took 2 hours to cut it down flat, sucked really badly, probably lost a few thousand miles off the life of those rotors.
so i jack up the left wheel which puts pressure on the sway bar, slightly raising the right wheel, when i lower the left wheel the right wheel, as it comes down, jerks and pops, specifically the coil over.
now is that just the friction and torque from the sway bar or do i have a problem with the coilovers? they have over 40k miles on them that i know of. i need to get a better torque wrench and check the subframe bolts before i start buying any parts. if the subframe is fine and i still have clunking, my first purchase will be end links, because my rear links were making a horrible clunk before as well which i fixed. i'll update, this weekend, today i'm changing brake pads, got the rotors resurfaced and damn one of them was horrible because of the awful bumpy tire, took 2 hours to cut it down flat, sucked really badly, probably lost a few thousand miles off the life of those rotors.